Pub Date : 2024-11-10DOI: 10.1016/j.hazadv.2024.100527
Chiedozie Chukwuemeka Aralu , Kelvin Emeka Agbo , Nchekwube D. Nweke , Stanley Ugochukwu Nwoke , Arikpo Temple Okah , Hillary Onyeka Abugu , Johnbosco C. Egbueri , Johnson C. Agbasi , Arinze Longinus Ezugwu , Michael Ekuru Omeka , Ifeanyi Adolphus Ucheana
Polychlorinated biphenyls (PCBs), which are produced by human activity, have contaminated Nigeria's ecology as a result of its industrialization for economic development. Organic compounds such as PCBs, are hazardous substances that provide significant health and environmental dangers. This study investigated the levels of PCBs in Nigerian ground and surface water, as well as their origins and associated health risks. A suitable screening process was used to gather and evaluate previous works from research databases, including PubMed, Google Scholar, ResearchGate, and Scopus. Both high and low quantities of PCBs were discovered in the research, and these findings pose an adverse effect on public health. The ground and surface water values ranged from below detectable limit (BDL) –560 µg/L and BDL–56.25 µg/L, respectively. Furthermore, transformer failures and oil spills were connected to the PCB sources. Additionally, leachates from waste sites, transformer oil, untreated effluent discharge, and petroleum spills were identified as the sources of PCBs. Through ingesting exposure routes to people, the cancer risk assessment values of PCBs in the water showed low to high-risk levels. Except for a single study, the non-carcinogenic risk's hazard index (HI) values showed no danger. It is advised that appropriate oversight, education, and stringent adherence to legal regulations be put in place to stop this hazardous substance from contaminating water and other environments.
{"title":"Levels, sources and toxicity assessment of PCBs in surface and groundwater in Nigeria: A systematic review","authors":"Chiedozie Chukwuemeka Aralu , Kelvin Emeka Agbo , Nchekwube D. Nweke , Stanley Ugochukwu Nwoke , Arikpo Temple Okah , Hillary Onyeka Abugu , Johnbosco C. Egbueri , Johnson C. Agbasi , Arinze Longinus Ezugwu , Michael Ekuru Omeka , Ifeanyi Adolphus Ucheana","doi":"10.1016/j.hazadv.2024.100527","DOIUrl":"10.1016/j.hazadv.2024.100527","url":null,"abstract":"<div><div>Polychlorinated biphenyls (PCBs), which are produced by human activity, have contaminated Nigeria's ecology as a result of its industrialization for economic development. Organic compounds such as PCBs, are hazardous substances that provide significant health and environmental dangers. This study investigated the levels of PCBs in Nigerian ground and surface water, as well as their origins and associated health risks. A suitable screening process was used to gather and evaluate previous works from research databases, including PubMed, Google Scholar, ResearchGate, and Scopus. Both high and low quantities of PCBs were discovered in the research, and these findings pose an adverse effect on public health. The ground and surface water values ranged from below detectable limit (BDL) –560 µg/L and BDL–56.25 µg/L, respectively. Furthermore, transformer failures and oil spills were connected to the PCB sources. Additionally, leachates from waste sites, transformer oil, untreated effluent discharge, and petroleum spills were identified as the sources of PCBs. Through ingesting exposure routes to people, the cancer risk assessment values of PCBs in the water showed low to high-risk levels. Except for a single study, the non-carcinogenic risk's hazard index (HI) values showed no danger. It is advised that appropriate oversight, education, and stringent adherence to legal regulations be put in place to stop this hazardous substance from contaminating water and other environments.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100527"},"PeriodicalIF":5.4,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662833","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 : 2024-11-05DOI: 10.1016/j.hazadv.2024.100522
Hasna Befenzi , Amine Ezzariai , Tahar Mechichi , Lamfeddal Kouisni , Mohamed Hafidi , Eric Record , Loubna EL Fels
Global antibiotic consumption has been rising uncontrollably. Antibiotics ultimately get flushed into the environment, where they can pose risks to ecosystems and human health. Conventional wastewater treatment processes are not effective at removing these antibiotics. However, the application of Fenton processes in water treatment has attracted attention due to their fast reaction speeds and effective performances. Here we review recent research related into Fenton processes for antibiotic degradation, including homogeneous and heterogeneous Fenton, photo-Fenton and electro-Fenton reactions. We look at the impact of several key parameters such as target antibiotic, hydrogen peroxide, ferrous ion concentrations, pH and temperature on the efficiency of antibiotic degradation. We also provide an in-depth analysis of commonly used catalysts, such as natural heterogeneous catalysts and synthetic iron-based catalysts, and go on to propose typical mechanisms for antibiotic degradation by homogeneous and heterogeneous Fenton processes based on products identified in the literature.
{"title":"Degradation of antibiotics by homogeneous and heterogeneous Fenton processes: A review","authors":"Hasna Befenzi , Amine Ezzariai , Tahar Mechichi , Lamfeddal Kouisni , Mohamed Hafidi , Eric Record , Loubna EL Fels","doi":"10.1016/j.hazadv.2024.100522","DOIUrl":"10.1016/j.hazadv.2024.100522","url":null,"abstract":"<div><div>Global antibiotic consumption has been rising uncontrollably. Antibiotics ultimately get flushed into the environment, where they can pose risks to ecosystems and human health. Conventional wastewater treatment processes are not effective at removing these antibiotics. However, the application of Fenton processes in water treatment has attracted attention due to their fast reaction speeds and effective performances. Here we review recent research related into Fenton processes for antibiotic degradation, including homogeneous and heterogeneous Fenton, photo-Fenton and electro-Fenton reactions. We look at the impact of several key parameters such as target antibiotic, hydrogen peroxide, ferrous ion concentrations, pH and temperature on the efficiency of antibiotic degradation. We also provide an in-depth analysis of commonly used catalysts, such as natural heterogeneous catalysts and synthetic iron-based catalysts, and go on to propose typical mechanisms for antibiotic degradation by homogeneous and heterogeneous Fenton processes based on products identified in the literature.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100522"},"PeriodicalIF":5.4,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662834","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 : 2024-11-01DOI: 10.1016/j.hazadv.2024.100521
Velmurugan P. M , Krishnan Vijayaprabhakaran , Devika P. T , Anbuselvan N , Venkatesan S , Mohammad Suhail Meer
Around the world, microplastic pollution is pervasive and is regarded as the biggest threat to all ecosystems. We conducted the present study to determine the prevalence of microplastics (MPs), their polymer hazard risk (PHI), and any potential sources of these particles in the estuary of Muttukadu Backwater, Southeast Coast of India. Microplastics were extricated from surface water and sediment by the wet peroxide method, identified by a stereo zoom microscope (SM), and characterized by ATR-FTIR and SEM-EDS analysis. The average microplastic abundance in sediment and surface water was 815±158 particles Kg−1 and 195±38 particles m−3, respectively. The most common microplastics based on shapes were fibers and fragments in both sediment and surface water, with blue and green-colored microplastics being the most frequently observed colors. Type II polymer particles (<3.00 mm–1.00 mm) are dominant particles in sediment (36 %), and type I (5.00 mm–3.00 mm) particles dominate in surface water samples (49 %). Energy dispersive X-ray spectrometer (EDS) results showed that the following chemical elements, such as O, C, Cl, Fe, Na, Al, K, Ca, and Si, as well as the order of the trace metal Pb > Cr > Ni > Co > As > Cu > Cd > Zn, are observed by microplastics of all sediment sampling location. The pollution load index (PI), polymer hazard index (PHI), and potential ecological risk (PER) index models revealed varying level of risk. The polymer hazard index (PHI) reveals that both water and sediments are moderate to highly MP contamination. The hazards of polymers such as polyethylene, polystyrene, polyester, and polyamide significantly contributed to hazard level IV. Inadequate plastic waste management, human habitation and tourism, rapid industrialization, and coastal construction are the main sources of microplastic contamination in the study area. The proper guidelines, potential policies, and technological interventions are much needed to reduce the microplastic contamination along Southeast Coast of India.
在世界各地，微塑料污染无处不在，被认为是对所有生态系统的最大威胁。我们进行了本研究，以确定印度东南海岸 Muttukadu Backwater 河口微塑料（MPs）的普遍性、其聚合物危害风险（PHI）以及这些微粒的潜在来源。采用湿过氧化物法从地表水和沉积物中提取微塑料，用立体变焦显微镜（SM）进行识别，并通过 ATR-FTIR 和 SEM-EDS 分析进行表征。沉积物和地表水中微塑料的平均丰度分别为 815±158 粒 Kg-1 和 195±38 粒 m-3。从形状上看，沉积物和地表水中最常见的微塑料是纤维和碎片，最常观察到的微塑料颜色是蓝色和绿色。第二类聚合物颗粒（3.00 毫米-1.00 毫米）是沉积物中的主要颗粒（36%），而第一类颗粒（5.00 毫米-3.00 毫米）则是地表水样本中的主要颗粒（49%）。能量色散 X 射线光谱仪（EDS）结果表明，所有沉积物采样地点的微塑料中均可观察到以下化学元素，如 O、C、Cl、Fe、Na、Al、K、Ca 和 Si，以及痕量金属 Pb > Cr > Ni > Co > As > Cu > Cd > Zn 的排列顺序。污染负荷指数（PI）、聚合物危害指数（PHI）和潜在生态风险指数（PER）模型显示了不同程度的风险。聚合物危害指数（PHI）显示，水和沉积物都受到中度到高度 MP 污染。聚乙烯、聚苯乙烯、聚酯和聚酰胺等聚合物的危害极大地导致了危害等级 IV。塑料废物管理不足、人类居住和旅游、快速工业化和沿海建设是研究区域微塑料污染的主要来源。要减少印度东南沿海的微塑料污染，亟需制定适当的指导方针、潜在的政策和技术干预措施。
{"title":"Microplastics pollution in tropical estuary (Muttukadu Backwater), Southeast Coast of India: Occurrence, distribution characteristics, potential sources and ecological risk assessment","authors":"Velmurugan P. M , Krishnan Vijayaprabhakaran , Devika P. T , Anbuselvan N , Venkatesan S , Mohammad Suhail Meer","doi":"10.1016/j.hazadv.2024.100521","DOIUrl":"10.1016/j.hazadv.2024.100521","url":null,"abstract":"<div><div>Around the world, microplastic pollution is pervasive and is regarded as the biggest threat to all ecosystems. We conducted the present study to determine the prevalence of microplastics (MPs), their polymer hazard risk (PHI), and any potential sources of these particles in the estuary of Muttukadu Backwater, Southeast Coast of India. Microplastics were extricated from surface water and sediment by the wet peroxide method, identified by a stereo zoom microscope (SM), and characterized by ATR-FTIR and SEM-EDS analysis. The average microplastic abundance in sediment and surface water was 815±158 particles Kg<sup>−1</sup> and 195±38 particles m<sup>−3</sup>, respectively. The most common microplastics based on shapes were fibers and fragments in both sediment and surface water, with blue and green-colored microplastics being the most frequently observed colors. Type II polymer particles (<3.00 mm–1.00 mm) are dominant particles in sediment (36 %), and type I (5.00 mm–3.00 mm) particles dominate in surface water samples (49 %). Energy dispersive X-ray spectrometer (EDS) results showed that the following chemical elements, such as O, C, Cl, Fe, Na, Al, K, Ca, and Si, as well as the order of the trace metal Pb > Cr > Ni > Co > As > Cu > Cd > Zn, are observed by microplastics of all sediment sampling location. The pollution load index (PI), polymer hazard index (PHI), and potential ecological risk (PER) index models revealed varying level of risk. The polymer hazard index (PHI) reveals that both water and sediments are moderate to highly MP contamination. The hazards of polymers such as polyethylene, polystyrene, polyester, and polyamide significantly contributed to hazard level IV. Inadequate plastic waste management, human habitation and tourism, rapid industrialization, and coastal construction are the main sources of microplastic contamination in the study area. The proper guidelines, potential policies, and technological interventions are much needed to reduce the microplastic contamination along Southeast Coast of India.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100521"},"PeriodicalIF":5.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658780","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 : 2024-11-01DOI: 10.1016/j.hazadv.2024.100508
Mark L. Brusseau
Sorption by soils and sediments is an important process that influences the distribution, transport, and fate of per and polyfluoroalkyl substances (PFAS) in the environment. Many laboratory studies have been conducted to quantify magnitudes of PFAS sorption as a function of the properties of the PFAS, solutions, and porous media. A critical question is how representative are laboratory-measured sorption magnitudes for field applications. To address this question, log Koc data were compiled from the literature for a range of PFAS of different chain lengths and functional groups. The aggregated field-based data consisted of two types, in-situ measurements comprising paired soil/sediment and water samples and ex-situ measurements obtained from laboratory desorption experiments employing field-contaminated media. These two sets of field-based measurements were compared to a comprehensive data set of standard laboratory batch-type measurements. The compiled data sets represent an extremely wide range of soil and sediment properties. One important novel outcome is the observation that the enhanced sorption of short-chain PFAS observed in several prior laboratory studies is also observed for the field data. This differential enhanced sorption should be accounted for in site investigations and modeling studies. Another relevant outcome is the observation of consistency between measurements obtained with standard batch adsorption experiments and those from desorption studies employing either field-contaminated or artificially-contaminated media. The mean log Koc values determined for the in-situ measured field data were generally larger than the mean laboratory-determined values, particularly for the short-chain PFAS. Notably, however, values for subsets of the laboratory data representing measurements for lower aqueous concentrations or for soils with low organic-carbon contents (<1 %) compared well to the in-situ field data. Measurements compiled for anionic-polyfluoroalkyl, neutral, and cationic PFAS compared well to those for PFCAs and PFSAs. Overall, the results indicate that the laboratory measurements of PFAS sorption were generally representative of the field-derived magnitudes when compared on a consistent basis.
{"title":"Field versus laboratory measurements of PFAS sorption by soils and sediments","authors":"Mark L. Brusseau","doi":"10.1016/j.hazadv.2024.100508","DOIUrl":"10.1016/j.hazadv.2024.100508","url":null,"abstract":"<div><div>Sorption by soils and sediments is an important process that influences the distribution, transport, and fate of per and polyfluoroalkyl substances (PFAS) in the environment. Many laboratory studies have been conducted to quantify magnitudes of PFAS sorption as a function of the properties of the PFAS, solutions, and porous media. A critical question is how representative are laboratory-measured sorption magnitudes for field applications. To address this question, log K<sub>oc</sub> data were compiled from the literature for a range of PFAS of different chain lengths and functional groups. The aggregated field-based data consisted of two types, in-situ measurements comprising paired soil/sediment and water samples and ex-situ measurements obtained from laboratory desorption experiments employing field-contaminated media. These two sets of field-based measurements were compared to a comprehensive data set of standard laboratory batch-type measurements. The compiled data sets represent an extremely wide range of soil and sediment properties. One important novel outcome is the observation that the enhanced sorption of short-chain PFAS observed in several prior laboratory studies is also observed for the field data. This differential enhanced sorption should be accounted for in site investigations and modeling studies. Another relevant outcome is the observation of consistency between measurements obtained with standard batch adsorption experiments and those from desorption studies employing either field-contaminated or artificially-contaminated media. The mean log K<sub>oc</sub> values determined for the in-situ measured field data were generally larger than the mean laboratory-determined values, particularly for the short-chain PFAS. Notably, however, values for subsets of the laboratory data representing measurements for lower aqueous concentrations or for soils with low organic-carbon contents (<1 %) compared well to the in-situ field data. Measurements compiled for anionic-polyfluoroalkyl, neutral, and cationic PFAS compared well to those for PFCAs and PFSAs. Overall, the results indicate that the laboratory measurements of PFAS sorption were generally representative of the field-derived magnitudes when compared on a consistent basis.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100508"},"PeriodicalIF":5.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142553962","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}
The development of efficient and stable photocatalysts holds vital importance in the fast and effective removal of toxic contaminants from wastewater. In this study, novel 1D/2D BiVO4-OV/NiMoO4 hybrid with enriched oxygen vacancies (BiVO4-OV/NiMoO4) were successfully synthesized by using one step hydrothermal synthesis route. Utilizing the p-n heterojunction and oxygen vacancies, the optimized BiVO4-OV/NiMoO4 composite exhibited exceptional photocatalytic efficiency, achieving a photocatalytic degradation efficiency of 92 % for rhodamine B (RhB) under visible light irradiation within 60 min. The apparent rate constant of value of optimized BiVO4-OV/NiMoO4 composite is 0.02864 min−1, exceeding those of BiVO4 and NiMoO4 by 4.4 times and 5.5 times, respectively. The photocatalytic mechanism and degradation pathways of RhB were investigated through active species trapping experiment. Remarkably, optimized BiVO4-OV/NiMoO4 hybrid demonstrated high stability and recyclability. This study on the development of highly efficient visible-light catalysts through synergistic defect and heterojunction engineering, offering a promising approach for organic pollutant degradation.
{"title":"Unveiling new insights into photocatalytic enhancement of p-n BiVO4-OV/NiMoO4 Heterojunctions through oxygen defect engineering","authors":"Bavani Thirugnanam , Preeyanghaa Mani , Munusamy Settu","doi":"10.1016/j.hazadv.2024.100515","DOIUrl":"10.1016/j.hazadv.2024.100515","url":null,"abstract":"<div><div>The development of efficient and stable photocatalysts holds vital importance in the fast and effective removal of toxic contaminants from wastewater. In this study, novel 1D/2D BiVO<sub>4</sub>-OV/NiMoO<sub>4</sub> hybrid with enriched oxygen vacancies (BiVO<sub>4</sub>-OV/NiMoO<sub>4</sub>) were successfully synthesized by using one step hydrothermal synthesis route. Utilizing the p-n heterojunction and oxygen vacancies, the optimized BiVO<sub>4</sub>-OV/NiMoO<sub>4</sub> composite exhibited exceptional photocatalytic efficiency, achieving a photocatalytic degradation efficiency of 92 % for rhodamine B (RhB) under visible light irradiation within 60 min. The apparent rate constant of value of optimized BiVO<sub>4</sub>-OV/NiMoO<sub>4</sub> composite is 0.02864 min<sup>−1</sup>, exceeding those of BiVO<sub>4</sub> and NiMoO<sub>4</sub> by 4.4 times and 5.5 times, respectively. The photocatalytic mechanism and degradation pathways of RhB were investigated through active species trapping experiment. Remarkably, optimized BiVO<sub>4</sub>-OV/NiMoO<sub>4</sub> hybrid demonstrated high stability and recyclability. This study on the development of highly efficient visible-light catalysts through synergistic defect and heterojunction engineering, offering a promising approach for organic pollutant degradation.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100515"},"PeriodicalIF":5.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658779","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}
High-purity silicon represents a major component of e-waste. Current methods for e-waste remediation are energy-intensive or chemical-based. Herein, a microbial route for silica dissolution from e-waste was explored, as microbes play an active role in balancing the silicon cycle. The study focused on an isolated silicate solubilizing bacterium (SSB) Staphylococcus gallinarum CON2 for its capability to solubilize silica in e-wafers and silicon dioxide chips. Bacterial silica dissolution was optimized for various parameters using Plackett Burman design. Heteropoly acid method was standardized for quantitative analysis of dissolved silica. Bacterial treatment of e-wafers from solar panels and laboratory-coated silicon dioxide chips were carried out under pre-optimized conditions. For comparison purpose, another SSB was also evaluated for e-waste remediation at similar conditions. The amount of released silicic acid after e-waste treatment was determined, and its presence was further confirmed by FTIR analysis. Etching and loosening of silicon dioxide particles on the surface were observed under SEM at different magnifications. The novel potential of silica dissolution from e-waste by isolated S. gallinarum CON2 was confirmed. A significant difference in the actions of both silicate solubilizing bacteria on the topography of the e-waste specimens was observed.
{"title":"Process optimization for silica dissolution from e-waste as a sustainable step towards bioremediation","authors":"Prabhjot Kaur , Jitender Sharma , Amarjit Singh , Parveen Kumar , Mukesh Kumar , Saurabh Kumar Kardam , Shubhang Bhardwaj , Ashish Kumar , Sunita Dalal","doi":"10.1016/j.hazadv.2024.100514","DOIUrl":"10.1016/j.hazadv.2024.100514","url":null,"abstract":"<div><div>High-purity silicon represents a major component of e-waste. Current methods for e-waste remediation are energy-intensive or chemical-based. Herein, a microbial route for silica dissolution from e-waste was explored, as microbes play an active role in balancing the silicon cycle. The study focused on an isolated silicate solubilizing bacterium (SSB) <em>Staphylococcus gallinarum</em> CON2 for its capability to solubilize silica in e-wafers and silicon dioxide chips. Bacterial silica dissolution was optimized for various parameters using Plackett Burman design. Heteropoly acid method was standardized for quantitative analysis of dissolved silica. Bacterial treatment of e-wafers from solar panels and laboratory-coated silicon dioxide chips were carried out under pre-optimized conditions. For comparison purpose, another SSB was also evaluated for e-waste remediation at similar conditions. The amount of released silicic acid after e-waste treatment was determined, and its presence was further confirmed by FTIR analysis. Etching and loosening of silicon dioxide particles on the surface were observed under SEM at different magnifications. The novel potential of silica dissolution from e-waste by isolated <em>S. gallinarum</em> CON2 was confirmed. A significant difference in the actions of both silicate solubilizing bacteria on the topography of the e-waste specimens was observed.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100514"},"PeriodicalIF":5.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572386","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 : 2024-11-01DOI: 10.1016/j.hazadv.2024.100516
Xingbo Wang , Kusheng Wu , Jiezhang Mo , Wenlong Huang
This review comprehensively examines the developmental toxicity of glyphosate (GLY), its commercial formulations, and its major metabolite, aminomethylphosphonic acid (AMPA), specifically focusing on their effects in non-target organisms, with zebrafish embryos and larvae as model system. GLY-based herbicides are widely used to control weeds in agricultural and non-agricultural areas, leading to concerns about their environmental impact and potential risks to human. We summarize the observed adverse developmental effects, which include disruptions in brain development, cardiovascular abnormalities, altered immune responses, impaired energy metabolism, craniofacial dysostosis, skeletal malformations and endocrine interference. These findings are critical as they indicate that exposure to GLY and its derivatives during early developmental stages can lead to significant and potentially irreversible developmental disruptions. Despite these observations, the precise biochemical and molecular mechanisms driving these toxic effects remain largely unclear. Key areas under investigation include the role of oxidative stress, endoplasmic reticulum stress, and mitochondrial dysfunction in mediating these adverse developmental outcomes. There is a pressing need for further studies to elucidate these mechanisms and to understand the long-term effects of chronic, low-dose exposure. Moreover, the potential for bioaccumulation of GLY and AMPA raises additional concerns about the implications for both ecosystem health and human health through the food chain. This review highlights the importance of advancing research in this area to better inform regulatory decisions and to develop strategies for mitigating the risks associated with glyphosate use.
{"title":"Developmental toxicity of glyphosate, its formulations and AMPA in non-target organisms: Insights from zebrafish embryos and larvae","authors":"Xingbo Wang , Kusheng Wu , Jiezhang Mo , Wenlong Huang","doi":"10.1016/j.hazadv.2024.100516","DOIUrl":"10.1016/j.hazadv.2024.100516","url":null,"abstract":"<div><div>This review comprehensively examines the developmental toxicity of glyphosate (GLY), its commercial formulations, and its major metabolite, aminomethylphosphonic acid (AMPA), specifically focusing on their effects in non-target organisms, with zebrafish embryos and larvae as model system. GLY-based herbicides are widely used to control weeds in agricultural and non-agricultural areas, leading to concerns about their environmental impact and potential risks to human. We summarize the observed adverse developmental effects, which include disruptions in brain development, cardiovascular abnormalities, altered immune responses, impaired energy metabolism, craniofacial dysostosis, skeletal malformations and endocrine interference. These findings are critical as they indicate that exposure to GLY and its derivatives during early developmental stages can lead to significant and potentially irreversible developmental disruptions. Despite these observations, the precise biochemical and molecular mechanisms driving these toxic effects remain largely unclear. Key areas under investigation include the role of oxidative stress, endoplasmic reticulum stress, and mitochondrial dysfunction in mediating these adverse developmental outcomes. There is a pressing need for further studies to elucidate these mechanisms and to understand the long-term effects of chronic, low-dose exposure. Moreover, the potential for bioaccumulation of GLY and AMPA raises additional concerns about the implications for both ecosystem health and human health through the food chain. This review highlights the importance of advancing research in this area to better inform regulatory decisions and to develop strategies for mitigating the risks associated with glyphosate use.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100516"},"PeriodicalIF":5.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658781","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}
The widespread contamination of aquatic environments by micro- and nano-plastics has become a global environmental concern that is demanding effective remediation strategies. The main objective of this paper is to find the application of modified biochar in micro- and nano-plastic removal from aqueous environments. In this paper, the synthesis of modified biochar, encompassing various modification techniques such as chemical functionalization, physical activation, and nanoparticle incorporation, is systematically explored. The intricate interaction mechanisms between modified biochar and microplastics are dissected by considering physical adsorption, chemical interactions, electrostatic forces, and hydrophobic interactions. The regeneration of biochar for repeated use is critically evaluated by emphasizing the challenges associated with structural changes and the loss of functional groups during regeneration processes. This review paper integrates findings from recent studies and identifies research gaps by offering insights into the optimization of biochar-based materials for sustainable and efficient removal of microplastics from aqueous matrices. It also guides future research endeavors and technological advancements in plastic pollution mitigation using sustainable materials.
{"title":"Removal of micro- and nano-plastics from aqueous matrices using modified biochar – A review of synthesis, applications, interaction, and regeneration","authors":"Anamika Shrivastava , Kumar Abhishek , Ajay Kumar Gupta , Harshita Jain , Manisha Kumari , Manvendra Patel , Prabhakar Sharma","doi":"10.1016/j.hazadv.2024.100518","DOIUrl":"10.1016/j.hazadv.2024.100518","url":null,"abstract":"<div><div>The widespread contamination of aquatic environments by micro- and nano-plastics has become a global environmental concern that is demanding effective remediation strategies. The main objective of this paper is to find the application of modified biochar in micro- and nano-plastic removal from aqueous environments. In this paper, the synthesis of modified biochar, encompassing various modification techniques such as chemical functionalization, physical activation, and nanoparticle incorporation, is systematically explored. The intricate interaction mechanisms between modified biochar and microplastics are dissected by considering physical adsorption, chemical interactions, electrostatic forces, and hydrophobic interactions. The regeneration of biochar for repeated use is critically evaluated by emphasizing the challenges associated with structural changes and the loss of functional groups during regeneration processes. This review paper integrates findings from recent studies and identifies research gaps by offering insights into the optimization of biochar-based materials for sustainable and efficient removal of microplastics from aqueous matrices. It also guides future research endeavors and technological advancements in plastic pollution mitigation using sustainable materials.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100518"},"PeriodicalIF":5.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658778","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}
Black carbon (BC) is a short-lived atmospheric aerosol having light absorbing properties with climate-changing potential. In addition, BC aerosols are also responsible for several adverse health effects including cardiovascular and respiratory problems. Here, we examine the long-term changes in BC, using MERRA-2 (Modern-Era Retrospective analysis for Research and Applications) and Emissions Database for Global Atmospheric Research (EDGAR) data for the period 2000–2019, and the associated health burden in rural India. This study finds a decreasing trend in BC in the rural IGP (Indo-Gangetic Plain) and NWI (North West India) during 2007–2019, at about -0.004 and –0.005 μg/m3/yr, respectively. A significant reduction in BC (from 0.03 to 0.01 μg/m3/yr after 2006) is observed in the rural Peninsular India (PI), where the reduced wind speed limits the transport of BC aerosols from other regions and thus, limits the BC concentration there. Our assessment finds that government policies such as BS (Bharat Stage) emission norms, electrification of rail routes, use of electric and compressed natural gas-based vehicles, the transformation of brick kilns to zig-zag technology, mechanised farming for on-site handling of crop residues and recent changes in atmospheric drivers (e.g. winds in IGP) contributed to this reduction in BC. However, the health burden associated with BC causes the highest all-cause mortality to be around 5,17,651 and 34,082 inhabitants in winter (December-February) and post-monsoon (October-November) seasons, respectively, in the rural IGP in the latest year 2019. In brief, the reduction of BC in rural India indicates that it complements the government policies. However, an improvement in the policy implementation might prove to be conducive to reduce the BC-driven mortality and regional climate warming.
黑碳（BC）是一种寿命很短的大气气溶胶，具有吸收光线的特性，具有改变气候的潜力。此外，黑碳气溶胶还对健康造成一些不利影响，包括心血管和呼吸系统问题。在此，我们利用 2000-2019 年期间的 MERRA-2（用于研究和应用的现代时代回顾分析）和全球大气研究排放数据库（EDGAR）数据研究了 BC 的长期变化以及印度农村地区的相关健康负担。这项研究发现，2007-2019 年期间，印度西北部农村地区（IGP）和 NWI（印度西北部）的 BC 呈下降趋势，分别约为-0.004 和-0.005 μg/m3/yr。在印度半岛（PI）的农村地区，由于风速降低，限制了其他地区 BC 气溶胶的传输，从而限制了该地区的 BC 浓度，BC 明显减少（2006 年后从 0.03 μg/m3/yr 降至 0.01 μg/m3/yr）。我们的评估发现，BS（巴拉特阶段）排放规范、铁路电气化、电动汽车和压缩天然气汽车的使用、砖窑 "之 "字形技术改造、现场处理作物残留物的机械化耕作等政府政策以及近期大气驱动因素的变化（如 IGP 的风）都有助于减少 BC。然而，与 BC 相关的健康负担造成了最高的全因死亡率，在最近的 2019 年，IGP 农村地区冬季（12 月至 2 月）和季风后（10 月至 11 月）季节的居民死亡率分别约为 517651 人和 34082 人。简而言之，印度农村 BC 的减少表明它与政府政策相辅相成。然而，改善政策执行情况可能有利于降低由 BC 导致的死亡率和区域气候变暖。
{"title":"Long-term changes in black carbon aerosols and their health effects in rural India during the past two decades (2000–2019)","authors":"Mansi Pathak, Jayanarayanan Kuttippurath, Rahul Kumar","doi":"10.1016/j.hazadv.2024.100519","DOIUrl":"10.1016/j.hazadv.2024.100519","url":null,"abstract":"<div><div>Black carbon (BC) is a short-lived atmospheric aerosol having light absorbing properties with climate-changing potential. In addition, BC aerosols are also responsible for several adverse health effects including cardiovascular and respiratory problems. Here, we examine the long-term changes in BC, using MERRA-2 (Modern-Era Retrospective analysis for Research and Applications) and Emissions Database for Global Atmospheric Research (EDGAR) data for the period 2000–2019, and the associated health burden in rural India. This study finds a decreasing trend in BC in the rural IGP (Indo-Gangetic Plain) and NWI (North West India) during 2007–2019, at about -0.004 and –0.005 μg/m<sup>3</sup>/yr, respectively. A significant reduction in BC (from 0.03 to 0.01 μg/m<sup>3</sup>/yr after 2006) is observed in the rural Peninsular India (PI), where the reduced wind speed limits the transport of BC aerosols from other regions and thus, limits the BC concentration there. Our assessment finds that government policies such as BS (Bharat Stage) emission norms, electrification of rail routes, use of electric and compressed natural gas-based vehicles, the transformation of brick kilns to zig-zag technology, mechanised farming for on-site handling of crop residues and recent changes in atmospheric drivers (e.g. winds in IGP) contributed to this reduction in BC. However, the health burden associated with BC causes the highest all-cause mortality to be around 5,17,651 and 34,082 inhabitants in winter (December-February) and post-monsoon (October-November) seasons, respectively, in the rural IGP in the latest year 2019. In brief, the reduction of BC in rural India indicates that it complements the government policies. However, an improvement in the policy implementation might prove to be conducive to reduce the BC-driven mortality and regional climate warming.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100519"},"PeriodicalIF":5.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658782","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 : 2024-11-01DOI: 10.1016/j.hazadv.2024.100509
Sathishkumar Kuppusamy , Moovendhan Meivelu , Loganathan Praburaman , Mohammed Mujahid Alam , Abdullah G. Al-Sehemi , Anbarasu K
This paper marks a groundbreaking step toward ensuring food safety by applying artificial intelligence (AI) in the detection of food contaminants. It argues that AI offers a significant advantage over traditional methods, addressing both food safety and environmental risk issues. We aim to make rapid, precise online analysis of chemical contaminants a reality. While traditional methods work well, they struggle with the demands for simplicity, large datasets and speed. In contrast, AI excels with its data manipulation and predictive analytics. This paper explores AI's applications and future perspectives in detecting, quantifying and reducing food contaminants, showcasing examples like machine learning, neural networks, and data mining techniques for identifying pests, heavy metals and mycotoxins. Additionally, AI-driven sensor technologies and spectroscopic methods are discussed for improving detection accuracy. AI's real-time detection capabilities can help prevent health crises and economic loss, while its predictive power supports sustainable agriculture by reducing the use of harmful chemicals.
{"title":"Integrating AI in food contaminant analysis: Enhancing quality and environmental protection","authors":"Sathishkumar Kuppusamy , Moovendhan Meivelu , Loganathan Praburaman , Mohammed Mujahid Alam , Abdullah G. Al-Sehemi , Anbarasu K","doi":"10.1016/j.hazadv.2024.100509","DOIUrl":"10.1016/j.hazadv.2024.100509","url":null,"abstract":"<div><div>This paper marks a groundbreaking step toward ensuring food safety by applying artificial intelligence (AI) in the detection of food contaminants. It argues that AI offers a significant advantage over traditional methods, addressing both food safety and environmental risk issues. We aim to make rapid, precise online analysis of chemical contaminants a reality. While traditional methods work well, they struggle with the demands for simplicity, large datasets and speed. In contrast, AI excels with its data manipulation and predictive analytics. This paper explores AI's applications and future perspectives in detecting, quantifying and reducing food contaminants, showcasing examples like machine learning, neural networks, and data mining techniques for identifying pests, heavy metals and mycotoxins. Additionally, AI-driven sensor technologies and spectroscopic methods are discussed for improving detection accuracy. AI's real-time detection capabilities can help prevent health crises and economic loss, while its predictive power supports sustainable agriculture by reducing the use of harmful chemicals.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"16 ","pages":"Article 100509"},"PeriodicalIF":5.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658777","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}
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