Pub Date : 2024-10-13DOI: 10.1016/j.hazadv.2024.100498
Mohamed Elsheref , Abdelmonaem Ahmed , Essam Elmelegy , Matthew A. Tarr , Wafaa Hammad , M.A. Darweesh
Biogenic adsorbents have emerged as a promising alternative to the traditional remediation techniques of heavy-metals contaminated water treatment. Using apricot (Prunus Armeniaca) stone as a naturally derived adsorbent, the current study provides a comprehensive analysis of the kinetic and isothermal characteristics associated with Cr (VI) and Fe (II) ion adsorption. The results show that 0.5 mg of the adsorbent removed approximately 90 % of Cr (VI) and Fe (II) ions from 100 ppm solutions within 120 min at 298 K at 300 rpm stirring speed. Equilibrium was attained within 90 to 120 min, with a significant increase in the removal percentage observed in the first 30–40 min for both metals compared to the subsequent 80–90 min. The optimal pH conditions for adsorption were determined to be acidic (pH = 1.5) for Cr (VI) and neutral (pH = 7) for Fe (II). The adsorption kinetics followed a pseudo-second order model, while the isothermal equilibrium data best fit the Freundlich model over the Langmuir model. Moreover, the thermodynamic parameters, including ΔG°, ΔH°, and ΔS°, indicated that the sorption process is spontaneous, feasible, and endothermic. The response surface methodology (RSM) analysis showed a high level of accuracy in predicting the percent removal. These findings illustrate the effectiveness of apricot stone as a low-cost and environmentally conscious adsorbent, contributing to the development of sustainable water treatment technologies.
{"title":"Adsorptive potential of apricot (Prunus Armeniaca) stone in the removal of Cr (VI) and Fe (II) ions from Aquatic Systems: Kinetic and isothermal investigations","authors":"Mohamed Elsheref , Abdelmonaem Ahmed , Essam Elmelegy , Matthew A. Tarr , Wafaa Hammad , M.A. Darweesh","doi":"10.1016/j.hazadv.2024.100498","DOIUrl":"10.1016/j.hazadv.2024.100498","url":null,"abstract":"<div><div>Biogenic adsorbents have emerged as a promising alternative to the traditional remediation techniques of heavy-metals contaminated water treatment. Using apricot (<em>Prunus Armeniaca</em>) stone as a naturally derived adsorbent, the current study provides a comprehensive analysis of the kinetic and isothermal characteristics associated with Cr (VI) and Fe (II) ion adsorption. The results show that 0.5 mg of the adsorbent removed approximately 90 % of Cr (VI) and Fe (II) ions from 100 ppm solutions within 120 min at 298 K at 300 rpm stirring speed. Equilibrium was attained within 90 to 120 min, with a significant increase in the removal percentage observed in the first 30–40 min for both metals compared to the subsequent 80–90 min. The optimal pH conditions for adsorption were determined to be acidic (pH = 1.5) for Cr (VI) and neutral (pH = 7) for Fe (II). The adsorption kinetics followed a pseudo-second order model, while the isothermal equilibrium data best fit the Freundlich model over the Langmuir model. Moreover, the thermodynamic parameters, including ΔG°, ΔH°, and ΔS°, indicated that the sorption process is spontaneous, feasible, and endothermic. The response surface methodology (RSM) analysis showed a high level of accuracy in predicting the percent removal. These findings illustrate the effectiveness of apricot stone as a low-cost and environmentally conscious adsorbent, contributing to the development of sustainable water treatment technologies.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100498"},"PeriodicalIF":5.4,"publicationDate":"2024-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-12DOI: 10.1016/j.hazadv.2024.100499
Antonija Rimsa , Anda Abola , Rita Veilande , Zanda Brike , Gita Revalde , Atis Skudra , Maris Strazds
Mercury is a pollutant that negatively impacts wildlife's physical fitness, reproduction success, as well as foraging and migrating abilities; especially high risk is posed to the animals that consume fish as their main food source, such as black storks Ciconia nigra. The black stork is a sensitive and solitary bird species, whose populations in north-eastern Europe have declined in recent years for various reasons. In this study, we present the first-ever multi-year assessment of mercury pollution in black stork faeces, analysing samples collected over a six-year period (2018–2023) from 121 nests across Latvia. We found a temporal and spatial total mercury pollution pattern and a distinction between total mercury pollution in juvenile (range: 4.75–521.78 ng/g) and adult (range: 7.32–365.60 ng/g) black stork faeces. Total mercury concentrations also differed based on faeces colour – light faeces had a statistically significant lower mercury concentration than dark faeces. In addition, we tested juvenile black stork food samples gathered from the nests and found up to five times higher total mercury concentrations than the government-permitted limit. Causes for the variability of mercury pollution across different nest sites as well as between adult and juvenile black storks are still open for future studies.
{"title":"The characterisation of mercury pollution in the faeces of Baltic region breeding black storks","authors":"Antonija Rimsa , Anda Abola , Rita Veilande , Zanda Brike , Gita Revalde , Atis Skudra , Maris Strazds","doi":"10.1016/j.hazadv.2024.100499","DOIUrl":"10.1016/j.hazadv.2024.100499","url":null,"abstract":"<div><div>Mercury is a pollutant that negatively impacts wildlife's physical fitness, reproduction success, as well as foraging and migrating abilities; especially high risk is posed to the animals that consume fish as their main food source, such as black storks <em>Ciconia nigra</em>. The black stork is a sensitive and solitary bird species, whose populations in north-eastern Europe have declined in recent years for various reasons. In this study, we present the first-ever multi-year assessment of mercury pollution in black stork faeces, analysing samples collected over a six-year period (2018–2023) from 121 nests across Latvia. We found a temporal and spatial total mercury pollution pattern and a distinction between total mercury pollution in juvenile (range: 4.75–521.78 ng/g) and adult (range: 7.32–365.60 ng/g) black stork faeces. Total mercury concentrations also differed based on faeces colour – light faeces had a statistically significant lower mercury concentration than dark faeces. In addition, we tested juvenile black stork food samples gathered from the nests and found up to five times higher total mercury concentrations than the government-permitted limit. Causes for the variability of mercury pollution across different nest sites as well as between adult and juvenile black storks are still open for future studies.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100499"},"PeriodicalIF":5.4,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-12DOI: 10.1016/j.hazadv.2024.100502
Fouzia Zaman , Md Ashikur Rahman , Md. Morshedul Haque , Md. Ahedul Akbor , Shafi M. Tareq
Microplastics (MPs) in surface and groundwater in Bangladesh are a significant issue. The purpose of this research was to assess the possibility of landfill leachate acting as a potential origin of MPs and to determine if the surrounding surface water (SW) and groundwater (GW) act as recipients. Furthermore, this research assessed the leachate treatment plant MP removal efficacy and MP risk assessment. The findings show that discharge leachate from the Matuail landfill contributes 3.5 × 108 particles per hour to the surrounding aquatic environment, with an average of 350 ± 10 MPs/L. MPs were found highly in SW and then in GW with an average of 1683 ± 70 and 614 ± 40 MPs/L, respectively, with 48.9% of MPs ranging from 0.1 mm to 0 .5mm. The dominant shapes were fibers and fragments. The Fourier transform infrared spectroscopy (FTIR) analysis revealed low density polyethylene (LDPE), high density polyethylene (HDPE), and Polypropylene (PP) were the most common, and Polyurethane (PUR), Polymethyl methacrylate (PMMA), and Polyacrylonitrile (PAN) posed the greatest threat to the environment. The inefficient treatment method resulted in the release of 83.33% of MPs, indicating a low removal efficiency in the leachate. The inefficient removal rate leads to the highest pollutant load index for SW (2.18). Ultimately, the analysis of the nemerow pollution index (NPI), contamination factor (CF), pollution load index (PLI), polymer hazard index (PHI), and potential ecological risk (Ei), revealed a minimal to extremely high range of contaminations. A clear link was obsevered between the particles shape and size throught the principal component analysis (PCA). Moreover, it highlights the need for ongoing national surveillance of MPs considering the gravity of this contamination and indicates the importance of proactive management of landfill sites.
{"title":"Pervasiveness and classification of microplastics in Landfill Leachate: Impacts, risks, and treatment efficiency","authors":"Fouzia Zaman , Md Ashikur Rahman , Md. Morshedul Haque , Md. Ahedul Akbor , Shafi M. Tareq","doi":"10.1016/j.hazadv.2024.100502","DOIUrl":"10.1016/j.hazadv.2024.100502","url":null,"abstract":"<div><div>Microplastics (MPs) in surface and groundwater in Bangladesh are a significant issue. The purpose of this research was to assess the possibility of landfill leachate acting as a potential origin of MPs and to determine if the surrounding surface water (SW) and groundwater (GW) act as recipients. Furthermore, this research assessed the leachate treatment plant MP removal efficacy and MP risk assessment. The findings show that discharge leachate from the Matuail landfill contributes 3.5 × 10<sup>8</sup> particles per hour to the surrounding aquatic environment, with an average of 350 ± 10 MPs/L. MPs were found highly in SW and then in GW with an average of 1683 ± 70 and 614 ± 40 MPs/L, respectively, with 48.9% of MPs ranging from 0.1 mm to 0 .5mm. The dominant shapes were fibers and fragments. The Fourier transform infrared spectroscopy (FTIR) analysis revealed low density polyethylene (LDPE), high density polyethylene (HDPE), and Polypropylene (PP) were the most common, and Polyurethane (PUR), Polymethyl methacrylate (PMMA), and <span><span>Polyacrylonitrile</span><svg><path></path></svg></span> (PAN) posed the greatest threat to the environment. The inefficient treatment method resulted in the release of 83.33% of MPs, indicating a low removal efficiency in the leachate. The inefficient removal rate leads to the highest pollutant load index for SW (2.18). Ultimately, the analysis of the nemerow pollution index (NPI), contamination factor (CF), pollution load index (PLI), polymer hazard index (PHI), and potential ecological risk (Ei), revealed a minimal to extremely high range of contaminations. A clear link was obsevered between the particles shape and size throught the principal component analysis (PCA). Moreover, it highlights the need for ongoing national surveillance of MPs considering the gravity of this contamination and indicates the importance of proactive management of landfill sites.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100502"},"PeriodicalIF":5.4,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-11DOI: 10.1016/j.hazadv.2024.100500
Md. Abul Hashem , Md. Enamul Hasan Zahin , Md. Anik Hasan , Mehedi Hasan , Tanvir Ahmed , Sk Shaker Ahamed , Md. Abu Hasan
Fecal sludge and tannery liming sludge management is essential for humans and the environment. The emitted amount of waste from two industries is reduced in composting leading to value-added products. This research focused on the effectiveness and feasibility of co-composting fecal sludge and hair-burning liming sludge from tannery. Fecal sludge was intermittently mixed with hair-burning liming sludge which also consisted of chicken manure and sawdust. Five piles (Pile 1, Pile 2, Pil3, Pile 4, and Pile 5) indicated respectively as P#1, P#2, P#3, P#4, and P#5, contained various ratios of composting materials were mixed, piled onto a horizontal bamboo frame, and observed for 120 days. To ensure a suitable oxygen supply, the composting piles were turned on in the thermophilic stage so that pathogens could not survive. The highest temperatures in the thermophilic stage were 39.0°C, 49.2°C, 55.7°C, 41.7°C, and 51.3°C. These referred to the respective piles P#1, P#2, P#3, P#4, and P#5. The Dewar stability index confirmed the stability of each composting pile, and the maximum degradation was found for P#3. The metals chromium (Cr), zinc (Zn), lead (Pb), iron (Fe), and nickel (Ni) in the final compost were found to be 38.1, 144.7, 15.1, 450.5, and 22.7 mg/kg, respectively. TCLP results reveal only an insignificant amount of metal leaching. Fecal coliform of the compost was below the standard level; Helminth eggs and Salmonella spp. were absent. SEM micrographs reflect the decomposition of composting materials. The maximum germination index and germination capacity of compost pile P#3 for compost-soil ratio 1:0 and 1:1 were 90%-92.8% and 100%, respectively. The present approach produced nutrient-enriched compost from fecal sludge and hair-burning liming sludge from a tannery emerges as a suitable solution for reducing solid wastes.
{"title":"Biostabilization of fecal sludge and tannery liming sludge: A novel approach","authors":"Md. Abul Hashem , Md. Enamul Hasan Zahin , Md. Anik Hasan , Mehedi Hasan , Tanvir Ahmed , Sk Shaker Ahamed , Md. Abu Hasan","doi":"10.1016/j.hazadv.2024.100500","DOIUrl":"10.1016/j.hazadv.2024.100500","url":null,"abstract":"<div><div>Fecal sludge and tannery liming sludge management is essential for humans and the environment. The emitted amount of waste from two industries is reduced in composting leading to value-added products. This research focused on the effectiveness and feasibility of co-composting fecal sludge and hair-burning liming sludge from tannery. Fecal sludge was intermittently mixed with hair-burning liming sludge which also consisted of chicken manure and sawdust. Five piles (Pile 1, Pile 2, Pil3, Pile 4, and Pile 5) indicated respectively as P#1, P#2, P#3, P#4, and P#5, contained various ratios of composting materials were mixed, piled onto a horizontal bamboo frame, and observed for 120 days. To ensure a suitable oxygen supply, the composting piles were turned on in the thermophilic stage so that pathogens could not survive. The highest temperatures in the thermophilic stage were 39.0°C, 49.2°C, 55.7°C, 41.7°C, and 51.3°C. These referred to the respective piles P#1, P#2, P#3, P#4, and P#5. The Dewar stability index confirmed the stability of each composting pile, and the maximum degradation was found for P#3. The metals chromium (Cr), zinc (Zn), lead (Pb), iron (Fe), and nickel (Ni) in the final compost were found to be 38.1, 144.7, 15.1, 450.5, and 22.7 mg/kg, respectively. TCLP results reveal only an insignificant amount of metal leaching. Fecal coliform of the compost was below the standard level; Helminth eggs and Salmonella spp. were absent. SEM micrographs reflect the decomposition of composting materials. The maximum germination index and germination capacity of compost pile P#3 for compost-soil ratio 1:0 and 1:1 were 90%-92.8% and 100%, respectively. The present approach produced nutrient-enriched compost from fecal sludge and hair-burning liming sludge from a tannery emerges as a suitable solution for reducing solid wastes.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100500"},"PeriodicalIF":5.4,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-11DOI: 10.1016/j.hazadv.2024.100497
Daggupati Sridhar , Sundaram Parimalarenganayaki
Groundwater pollution by heavy metals is a significant and alarming threat globally, through its chronic effect on human health and ecosystem. The current study evaluated the identification and risk assessment of heavy metals in groundwater of the Vellore city, Tamilnadu, India. Groundwater samples were collected from 32 locations over a continuous period of 2022–2023 for every three months on seasonal basis. The samples were analysed for pH, Total Dissolved Solids (TDS), Hardness and heavy metals (Al, As, Ba, Cd, Cu, Pb, Al and Zn). The analysed mean concentrations of these heavy metals were found in the order: As > Cd > Pb > Ba >Zn >Al> Cu. Elevated concentrations of heavy metals were observed in 2022, likely influenced by rainfall and land use patterns. Heavy metals such as Al, As, Pb, and Cd exceeded the BIS limits and whereas Ba, Cu, and Zn concentrations remain within desirable limits. Groundwater Quality Index (GWQI) classified 41% as 'unfit for drinking'. Ecological risk indices (ERI) indicate significant contamination in 34% of samples, with Al and Pb being primary contributors. Non-carcinogenic health risk assessments reveal, chronic hazards, where children facing higher risks followed by men and women groups. Carcinogenic risk assessments indices such as Heavy metal pollution Index (HPI) shown 25% of samples in critical quality, Heavy metal Evaluation Index (HEI) evaluated all samples were in low contamination and Contamination Index (CI) shown 72% samples under high contamination posing high risk to humans. Probable Cancer Risk (PCR) values for As, Pb, and Cd exceed acceptable ranges across all demographic groups posing cancer risk to humans particularly children. The present study highlights the need for groundwater treatment and regulatory interventions to mitigate health and ecological risks due to the contamination of heavy metals in Vellore city.
{"title":"Evaluation of human and ecological health risks associated with the potentially toxic heavy metals in groundwater of Vellore city, Tamil Nadu, India","authors":"Daggupati Sridhar , Sundaram Parimalarenganayaki","doi":"10.1016/j.hazadv.2024.100497","DOIUrl":"10.1016/j.hazadv.2024.100497","url":null,"abstract":"<div><div>Groundwater pollution by heavy metals is a significant and alarming threat globally, through its chronic effect on human health and ecosystem. The current study evaluated the identification and risk assessment of heavy metals in groundwater of the Vellore city, Tamilnadu, India. Groundwater samples were collected from 32 locations over a continuous period of 2022–2023 for every three months on seasonal basis. The samples were analysed for pH, Total Dissolved Solids (TDS), Hardness and heavy metals (Al, As, Ba, Cd, Cu, Pb, Al and Zn). The analysed mean concentrations of these heavy metals were found in the order: As > Cd > Pb > Ba >Zn >Al> Cu. Elevated concentrations of heavy metals were observed in 2022, likely influenced by rainfall and land use patterns. Heavy metals such as Al, As, Pb, and Cd exceeded the BIS limits and whereas Ba, Cu, and Zn concentrations remain within desirable limits. Groundwater Quality Index (GWQI) classified 41% as 'unfit for drinking'. Ecological risk indices (ERI) indicate significant contamination in 34% of samples, with Al and Pb being primary contributors. Non-carcinogenic health risk assessments reveal, chronic hazards, where children facing higher risks followed by men and women groups. Carcinogenic risk assessments indices such as Heavy metal pollution Index (HPI) shown 25% of samples in critical quality, Heavy metal Evaluation Index (HEI) evaluated all samples were in low contamination and Contamination Index (CI) shown 72% samples under high contamination posing high risk to humans. Probable Cancer Risk (PCR) values for As, Pb, and Cd exceed acceptable ranges across all demographic groups posing cancer risk to humans particularly children. The present study highlights the need for groundwater treatment and regulatory interventions to mitigate health and ecological risks due to the contamination of heavy metals in Vellore city.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100497"},"PeriodicalIF":5.4,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-11DOI: 10.1016/j.hazadv.2024.100494
Ana Pilar Martín-García, Ágata Egea-Corbacho, Ana Amelia Franco, Rocío Rodríguez-Barroso, María Dolores Coello, José María Quiroga
Microplastics (MPs) are a growing environmental problem that threaten living organisms, especially in water ecosystems. One of the main sources of MPs in water environments are wastewater treatment plants, which remove the majority of these micropollutants, but large amounts keep reaching the environment daily. To achieve a larger removal on MPs in wastewater, intermittent filtration sets as an efficient and cheap alternative. In this work, three laboratory-scale filters were tested, with different filtration media (sand, sand/coke and coke) to compare their performance with PP-spiked freshwater and real wastewater samples in removing MPs from different size ranges, from larger than 32 µm to 100 µm. Sand/coke and coke filters showed the best results, with a general microplastic removal efficiency of up to 92.79 ± 2.78 % for wastewater and 89.56 ± 2.19 % for PP-spiked water. This removal efficiency decreased with smaller MPs, reaching up to 90.87 ± 3.46 % for wastewater and 76.28 ± 8.54 % for PP-spiked water. Significant differences were found on efficiencies for PP-spiked water and wastewater, especially in the range from 32 to 63 µm, where biofilm formed on pores surface with wastewater filtration may play an important role for the removal of these MPs.
{"title":"Performance of intermittent sand and coke filters for the removal of size-ranged microplastics","authors":"Ana Pilar Martín-García, Ágata Egea-Corbacho, Ana Amelia Franco, Rocío Rodríguez-Barroso, María Dolores Coello, José María Quiroga","doi":"10.1016/j.hazadv.2024.100494","DOIUrl":"10.1016/j.hazadv.2024.100494","url":null,"abstract":"<div><div>Microplastics (MPs) are a growing environmental problem that threaten living organisms, especially in water ecosystems. One of the main sources of MPs in water environments are wastewater treatment plants, which remove the majority of these micropollutants, but large amounts keep reaching the environment daily. To achieve a larger removal on MPs in wastewater, intermittent filtration sets as an efficient and cheap alternative. In this work, three laboratory-scale filters were tested, with different filtration media (sand, sand/coke and coke) to compare their performance with PP-spiked freshwater and real wastewater samples in removing MPs from different size ranges, from larger than 32 µm to 100 µm. Sand/coke and coke filters showed the best results, with a general microplastic removal efficiency of up to 92.79 ± 2.78 % for wastewater and 89.56 ± 2.19 % for PP-spiked water. This removal efficiency decreased with smaller MPs, reaching up to 90.87 ± 3.46 % for wastewater and 76.28 ± 8.54 % for PP-spiked water. Significant differences were found on efficiencies for PP-spiked water and wastewater, especially in the range from 32 to 63 µm, where biofilm formed on pores surface with wastewater filtration may play an important role for the removal of these MPs.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100494"},"PeriodicalIF":5.4,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Phenylurea herbicides have long been utilized in agricultural practices for their efficacy in weed control. They play a significant role in modern agriculture, aiding in crop protection. However, their extensive use raises concerns about their environmental fate and potential adverse impacts on ecosystems thus prompting extensive research into their fate and removal strategies. This comprehensive review explores the environmental fate of phenylurea herbicides, focusing on their persistence, mobility, and bioavailability. Furthermore, the ecological consequences of their presence, such as effects on non-target organisms and potential for bioaccumulation, have also been analysed. The review also provides an in-depth analysis of removal strategies, encompassing physical, chemical, and biological methods, highlighting their effectiveness and limitations. The present study offers insights into successful applications and challenges encountered in removing phenylurea herbicides from environmental matrices. This review serves as a valuable resource for researchers, policymakers, and environmental practitioners seeking a comprehensive understanding of phenylurea herbicides' and addressing the environmental risks associated with them, guiding efforts toward their safe and effective use while preserving environmental quality and biodiversity.
{"title":"Understanding the environmental fate and removal strategies of phenylurea herbicides: A comprehensive review","authors":"Satya Sundar Mohanty , Pooja Singh , Shweta Nistala , Kaustubha Mohanty","doi":"10.1016/j.hazadv.2024.100496","DOIUrl":"10.1016/j.hazadv.2024.100496","url":null,"abstract":"<div><div>Phenylurea herbicides have long been utilized in agricultural practices for their efficacy in weed control. They play a significant role in modern agriculture, aiding in crop protection. However, their extensive use raises concerns about their environmental fate and potential adverse impacts on ecosystems thus prompting extensive research into their fate and removal strategies. This comprehensive review explores the environmental fate of phenylurea herbicides, focusing on their persistence, mobility, and bioavailability. Furthermore, the ecological consequences of their presence, such as effects on non-target organisms and potential for bioaccumulation, have also been analysed. The review also provides an in-depth analysis of removal strategies, encompassing physical, chemical, and biological methods, highlighting their effectiveness and limitations. The present study offers insights into successful applications and challenges encountered in removing phenylurea herbicides from environmental matrices. This review serves as a valuable resource for researchers, policymakers, and environmental practitioners seeking a comprehensive understanding of phenylurea herbicides' and addressing the environmental risks associated with them, guiding efforts toward their safe and effective use while preserving environmental quality and biodiversity.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100496"},"PeriodicalIF":5.4,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-09DOI: 10.1016/j.hazadv.2024.100495
Adio J. Akamo , Adetutu O. Ojelabi , Naomi M. Akamo , Boluwatife A. Olagunju , Oluwatobi T. Somade , Mary I. Olasoju , Ofem E. Eteng , Mushafau A. Akinsanya , Adedayo A. Adebisi , Taiwo S. Oguntona , Yusuf O. Aderibigbe , Adewale M. Taiwo , Iyabode A. Kehinde , Jacob K. Akintunde , Regina N. Ugbaja
In many rural and semi-urban areas of Nigeria, dichlorvos (DDVP) is a commonly utilized pesticide. However, it provokes remarkable health hazards, including erythrocyte toxicity. Hesperetin-7-rutinoside (Hesp-7-Rut), a citrus flavanone glycoside with antioxidant, anti-dyslipidemia and acetylcholinesterase-modulating properties has been investigated for its protective effects against various xenobiotic-mediated toxicities. This inquiry probed the chemotherapeutic role of Hesp-7-Rut in mitigating erythrocyte damage in rats. Forty-two rats were randomly `apportioned into seven groups (6 rats/group): control, DDVP alone (8 mg.kg⁻¹day⁻¹), DDVP + Hesp-7-Rut (50 mg.kg⁻¹day⁻¹), DDVP + Hesp-7-Rut (100 mg.kg⁻¹day⁻¹), DDVP + atropine (0.2 mg.kg⁻¹day⁻¹), Hesp-7-Rut only (50 mg.kg⁻¹day⁻¹), and Hesp-7-Rut only (100 mg.kg⁻¹day⁻¹). Rats were orally administered DDVP for 7 days followed by Hesp-7-Rut or atropine for another 14 days. Blood samples were collected to assess for biochemical assays. Hesp-7-Rut significantly (p < 0.05) rescinded DDVP-prompted increases in erythrocyte nitric oxide, malondialdehyde, cholesterol, phospholipids, and cholesterol: phospholipids ratio. Additionally, Hesp-7-Rut reversed DDVP-elicited decreases in red blood cell glutathione levels, activities of GST, SOD, catalase, glutathione peroxidase, and acetylcholinesterase. Overall, Hesp-7-Rut efficiently counteracts DDVP-elicited erythrocyte dysfunction by mitigating oxidative stress, dyslipidemia, and acetylcholinesterase inhibition. These findings highlight the potential of Hesp-7-Rut as a promising therapeutic agent for mitigating the harmful effects of DDVP exposure.
{"title":"Hesperetin-7-rutinoside mitigates erythrocyte dyslipidemia and oxidative stress induced by dichlorvos","authors":"Adio J. Akamo , Adetutu O. Ojelabi , Naomi M. Akamo , Boluwatife A. Olagunju , Oluwatobi T. Somade , Mary I. Olasoju , Ofem E. Eteng , Mushafau A. Akinsanya , Adedayo A. Adebisi , Taiwo S. Oguntona , Yusuf O. Aderibigbe , Adewale M. Taiwo , Iyabode A. Kehinde , Jacob K. Akintunde , Regina N. Ugbaja","doi":"10.1016/j.hazadv.2024.100495","DOIUrl":"10.1016/j.hazadv.2024.100495","url":null,"abstract":"<div><div>In many rural and semi-urban areas of Nigeria, dichlorvos (DDVP) is a commonly utilized pesticide. However, it provokes remarkable health hazards, including erythrocyte toxicity. Hesperetin-7-rutinoside (Hesp-7-Rut), a citrus flavanone glycoside with antioxidant, anti-dyslipidemia and acetylcholinesterase-modulating properties has been investigated for its protective effects against various xenobiotic-mediated toxicities. This inquiry probed the chemotherapeutic role of Hesp-7-Rut in mitigating erythrocyte damage in rats. Forty-two rats were randomly `apportioned into seven groups (6 rats/group): control, DDVP alone (8 mg.kg⁻¹day⁻¹), DDVP + Hesp-7-Rut (50 mg.kg⁻¹day⁻¹), DDVP + Hesp-7-Rut (100 mg.kg⁻¹day⁻¹), DDVP + atropine (0.2 mg.kg⁻¹day⁻¹), Hesp-7-Rut only (50 mg.kg⁻¹day⁻¹), and Hesp-7-Rut only (100 mg.kg⁻¹day⁻¹). Rats were orally administered DDVP for 7 days followed by Hesp-7-Rut or atropine for another 14 days. Blood samples were collected to assess for biochemical assays. Hesp-7-Rut significantly (<em>p <</em> 0.05) rescinded DDVP-prompted increases in erythrocyte nitric oxide, malondialdehyde, cholesterol, phospholipids, and cholesterol: phospholipids ratio. Additionally, Hesp-7-Rut reversed DDVP-elicited decreases in red blood cell glutathione levels, activities of GST, SOD, catalase, glutathione peroxidase, and acetylcholinesterase. Overall, Hesp-7-Rut efficiently counteracts DDVP-elicited erythrocyte dysfunction by mitigating oxidative stress, dyslipidemia, and acetylcholinesterase inhibition. These findings highlight the potential of Hesp-7-Rut as a promising therapeutic agent for mitigating the harmful effects of DDVP exposure.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100495"},"PeriodicalIF":5.4,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142418952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-08DOI: 10.1016/j.hazadv.2024.100493
Tadele Assefa Aragaw
Thousands of synthetic dyes are used in the textile industry for fabric manufacturing. During the dyeing process, more than one-third of the dyes are not absorbed by the fabric and end up in wastewater. These dyes are toxic and carcinogenic, leading to significant environmental pollution, diminishing the aesthetic value of natural water bodies and posing threats to human health and aquatic biodiversity. Physicochemical treatment methods have been used to remove dyes but are neither economically feasible nor environmentally friendly. In contrast, biological treatment methods are cost-effective, efficient, and environmentally sustainable. This review aims to provide a comprehensive overview of textile dye biodegradation, the challenges posed by the characteristics of textile wastewater, and the potential of alkaliphilic microbes to address this issue. Additionally, it discusses the underlying mechanisms of dye biodegradation, the advantages of mixed cultures or microbial consortia over single microorganisms in dye degradation, and the factors affecting the degradation efficiency of microorganisms. Dye concentration and type, incubation temperature, pH, and time are identified as influential factors in the dye biodegradation process. Studies confirm that the standard biological treatment process using non-alkaliphilic microorganisms is ineffective for complete dye degradation and detoxification, as textile wastewater is alkaline and saline in nature. Therefore, alkaliphilic microbes are a potential alternative for textile dye wastewater treatment. These microorganisms can function under extreme conditions and produce various oxidoreductive enzymes, including azoreductase, laccase, lignin peroxidase, and manganese peroxidase, which can be involved in the biodegradation process. Alkaliphilic microbes play a crucial role in dye biodegradation through their alternative metabolic pathways and adaptive response mechanisms, enabling them to survive under harsh conditions and making them highly efficient. Although these microbes have been studied in laboratory and pilot-scale experiments, further research is needed to assess their practicality in real-world applications.
{"title":"A review of dye biodegradation in textile wastewater, challenges due to wastewater characteristics, and the potential of alkaliphiles","authors":"Tadele Assefa Aragaw","doi":"10.1016/j.hazadv.2024.100493","DOIUrl":"10.1016/j.hazadv.2024.100493","url":null,"abstract":"<div><div>Thousands of synthetic dyes are used in the textile industry for fabric manufacturing. During the dyeing process, more than one-third of the dyes are not absorbed by the fabric and end up in wastewater. These dyes are toxic and carcinogenic, leading to significant environmental pollution, diminishing the aesthetic value of natural water bodies and posing threats to human health and aquatic biodiversity. Physicochemical treatment methods have been used to remove dyes but are neither economically feasible nor environmentally friendly. In contrast, biological treatment methods are cost-effective, efficient, and environmentally sustainable. This review aims to provide a comprehensive overview of textile dye biodegradation, the challenges posed by the characteristics of textile wastewater, and the potential of alkaliphilic microbes to address this issue. Additionally, it discusses the underlying mechanisms of dye biodegradation, the advantages of mixed cultures or microbial consortia over single microorganisms in dye degradation, and the factors affecting the degradation efficiency of microorganisms. Dye concentration and type, incubation temperature, pH, and time are identified as influential factors in the dye biodegradation process. Studies confirm that the standard biological treatment process using non-alkaliphilic microorganisms is ineffective for complete dye degradation and detoxification, as textile wastewater is alkaline and saline in nature. Therefore, alkaliphilic microbes are a potential alternative for textile dye wastewater treatment. These microorganisms can function under extreme conditions and produce various oxidoreductive enzymes, including azoreductase, laccase, lignin peroxidase, and manganese peroxidase, which can be involved in the biodegradation process. Alkaliphilic microbes play a crucial role in dye biodegradation through their alternative metabolic pathways and adaptive response mechanisms, enabling them to survive under harsh conditions and making them highly efficient. Although these microbes have been studied in laboratory and pilot-scale experiments, further research is needed to assess their practicality in real-world applications.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100493"},"PeriodicalIF":5.4,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142418847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-05DOI: 10.1016/j.hazadv.2024.100485
Amir Hossein Khoshakhlagh , Safiye Ghobakhloo , Agnieszka Gruszecka-Kosowska
Occupational exposure to heavy metals (HMs) in various activities might pose a severe risk to human health. A systematic review was undertaken to gather relevant studies on occupational exposure to HMs in various professions without time limitation and included all studies up to February 5, 2023. This study aimed to identify workplaces exposed to HMs, examine HM concentrations in different occupations, and assess the carcinogenic (CR) and non-carcinogenic (HQ) risks of inhalational exposure to these chemicals among employees. A systematic search in the Scopus, Web of Science, and PubMed databases using standard keywords yielded 423 studies, 17 of which were included in the analysis. The present review included studies that met the requirements of the Population, Exposure, Comparator, and Outcomes (PECO) criteria. The results indicated that the mean concentrations of HM in occupational environments were lower than the National Institute for Occupational Safety and Health (NIOSH) thresholds. In the reviewed studies, the unacceptable CR values were related to work environments such as temples, tobacco cafés, barbeque restaurants, and subways. Cr showed the highest contribution to the CR, followed by Cd > As > Co > Ni > Pb. Also, HQ values in activities related to the subway stations, surgical instrument production industries, and workplaces studied in Alexandropolis were higher than the acceptable level of 1. The most significant HQ values were associated with Ni. Therefore, according to the HQ and CR calculated, which were higher than the permissible values (1 for HQ and 1 × 10–6 to 1 × 10–4 for cancer risks) in the investigated jobs, biomonitoring of HMs in the body of employees is recommended.
在各种活动中接触重金属（HMs）可能会对人类健康构成严重威胁。我们进行了一项系统性综述，以收集各种职业接触 HMs 的相关研究，研究不受时间限制，包括截至 2023 年 2 月 5 日的所有研究。这项研究旨在确定暴露于 HMs 的工作场所，检查不同职业中 HMs 的浓度，并评估员工吸入暴露于这些化学品的致癌（CR）和非致癌（HQ）风险。通过使用标准关键词在 Scopus、Web of Science 和 PubMed 数据库中进行系统搜索，共获得 423 项研究，其中 17 项纳入分析。本综述包括了符合 "人群、暴露、参照物和结果（PECO）"标准要求的研究。结果表明，职业环境中 HM 的平均浓度低于美国国家职业安全与健康研究所（NIOSH）的阈值。在所审查的研究中，无法接受的 CR 值与寺庙、烟草咖啡馆、烧烤店和地铁等工作环境有关。铬对 CR 的影响最大，其次是镉、砷、钴、镍、铅。此外，在亚历山大罗波利斯研究的地铁站、手术器械生产行业和工作场所的相关活动中，HQ 值均高于 1 的可接受水平。因此，根据计算得出的 HQ 和 CR 值（HQ 值高于允许值 1，癌症风险值高于允许值 1 × 10-6 至 1 × 10-4），建议对员工体内的 HMs 进行生物监测。
{"title":"Inhalational exposure to heavy metals: Carcinogenic and non-carcinogenic risk assessment","authors":"Amir Hossein Khoshakhlagh , Safiye Ghobakhloo , Agnieszka Gruszecka-Kosowska","doi":"10.1016/j.hazadv.2024.100485","DOIUrl":"10.1016/j.hazadv.2024.100485","url":null,"abstract":"<div><div>Occupational exposure to heavy metals (HMs) in various activities might pose a severe risk to human health. A systematic review was undertaken to gather relevant studies on occupational exposure to HMs in various professions without time limitation and included all studies up to February 5, 2023. This study aimed to identify workplaces exposed to HMs, examine HM concentrations in different occupations, and assess the carcinogenic (CR) and non-carcinogenic (HQ) risks of inhalational exposure to these chemicals among employees. A systematic search in the Scopus, Web of Science, and PubMed databases using standard keywords yielded 423 studies, 17 of which were included in the analysis. The present review included studies that met the requirements of the Population, Exposure, Comparator, and Outcomes (PECO) criteria. The results indicated that the mean concentrations of HM in occupational environments were lower than the National Institute for Occupational Safety and Health (NIOSH) thresholds. In the reviewed studies, the unacceptable CR values were related to work environments such as temples, tobacco cafés, barbeque restaurants, and subways. Cr showed the highest contribution to the CR, followed by Cd > As > Co > Ni > Pb. Also, HQ values in activities related to the subway stations, surgical instrument production industries, and workplaces studied in Alexandropolis were higher than the acceptable level of 1. The most significant HQ values were associated with Ni. Therefore, according to the HQ and CR calculated, which were higher than the permissible values (1 for HQ and 1 × 10<sup>–6</sup> to 1 × 10<sup>–4</sup> for cancer risks) in the investigated jobs, biomonitoring of HMs in the body of employees is recommended.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100485"},"PeriodicalIF":5.4,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号