Pub Date : 2025-04-23DOI: 10.1016/j.envpol.2025.126295
Fernando Garrido de Oliveira, Lilian Dena dos Santos, Alessandra Svonka Palmeiro
Land use and land cover changes significantly impact water quality worldwide. In Brazil, the expansion of agricultural activities and the introduction of pollutants severely compromise surface water quality, posing risks to aquatic life. This study evaluated, for the first time, the water quality of the São Camilo, Santa Fé, and Pioneiro Rivers in the western region of Paraná, a key agricultural area in southern Brazil. Using a Water Quality Index (WQI) integrated with Geographic Information Systems (GIS), water samples were collected in winter 2022 and summer 2023 at three points along each river: upstream, midstream, and downstream. Eleven physical and chemical parameters were analyzed. Spatial interpolation via the Inverse Distance Weighting (IDW) method was used to generate WQI maps. Results showed medium water quality in the São Camilo River in both seasons. In the Santa Fé River, quality ranged from medium to bad, particularly at the urban-impacted midstream point. In the Pioneiro River, water quality was medium, with improved conditions at the downstream site. Findings indicate that untreated domestic effluents, agricultural runoff, and aquaculture waste significantly contribute to water degradation. The integration of WQI and GIS proved effective in assessing spatial patterns of water quality and can support environmental monitoring and public policy planning.
{"title":"Assessment of surface water quality based on physical and chemical parameters in a GIS, for three rivers in southern Brazil","authors":"Fernando Garrido de Oliveira, Lilian Dena dos Santos, Alessandra Svonka Palmeiro","doi":"10.1016/j.envpol.2025.126295","DOIUrl":"https://doi.org/10.1016/j.envpol.2025.126295","url":null,"abstract":"Land use and land cover changes significantly impact water quality worldwide. In Brazil, the expansion of agricultural activities and the introduction of pollutants severely compromise surface water quality, posing risks to aquatic life. This study evaluated, for the first time, the water quality of the São Camilo, Santa Fé, and Pioneiro Rivers in the western region of Paraná, a key agricultural area in southern Brazil. Using a Water Quality Index (WQI) integrated with Geographic Information Systems (GIS), water samples were collected in winter 2022 and summer 2023 at three points along each river: upstream, midstream, and downstream. Eleven physical and chemical parameters were analyzed. Spatial interpolation via the Inverse Distance Weighting (IDW) method was used to generate WQI maps. Results showed medium water quality in the São Camilo River in both seasons. In the Santa Fé River, quality ranged from medium to bad, particularly at the urban-impacted midstream point. In the Pioneiro River, water quality was medium, with improved conditions at the downstream site. Findings indicate that untreated domestic effluents, agricultural runoff, and aquaculture waste significantly contribute to water degradation. The integration of WQI and GIS proved effective in assessing spatial patterns of water quality and can support environmental monitoring and public policy planning.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"13 1","pages":""},"PeriodicalIF":8.9,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-23DOI: 10.1016/j.resconrec.2025.108334
Md Shafiqul Islam, Angela Farina, Bora Cetin, Annick Anctil
Gravel roads are prone to severe distress, resulting in high construction and maintenance costs. Chemical stabilization is a widely used method for enhancing the durability of gravel roads. However, the environmental and economic impact of stabilized roads is still unknown. This study compared the environmental and economic impacts of 1-km-double lane gravel road stabilized with CaCl2, MgCl2, and concentrated liquid (LS) to an untreated road, using life cycle assessment (LCA) and life cycle cost analysis (LCCA). Results showed that stabilized roads had lower carbon footprint and cost than untreated roads. The LS reduced the carbon footprint of gravel roads by 3.6 % and 19.3 % than CaCl2 and MgCl2 stabilizers, respectively. However, LCCA results showed that the CaCl2 stabilizer provided savings 17 % higher than LS and 15 % higher than MgCl2. The findings of this study will help guide transportation agency's choices for gravel roads, leading to a lower environmental impact and cost.
{"title":"A comparative life cycle assessment and life cycle cost analysis of chemically stabilized gravel roads","authors":"Md Shafiqul Islam, Angela Farina, Bora Cetin, Annick Anctil","doi":"10.1016/j.resconrec.2025.108334","DOIUrl":"10.1016/j.resconrec.2025.108334","url":null,"abstract":"<div><div>Gravel roads are prone to severe distress, resulting in high construction and maintenance costs. Chemical stabilization is a widely used method for enhancing the durability of gravel roads. However, the environmental and economic impact of stabilized roads is still unknown. This study compared the environmental and economic impacts of 1-km-double lane gravel road stabilized with CaCl<sub>2</sub>, MgCl<sub>2,</sub> and concentrated liquid (LS) to an untreated road, using life cycle assessment (LCA) and life cycle cost analysis (LCCA). Results showed that stabilized roads had lower carbon footprint and cost than untreated roads. The LS reduced the carbon footprint of gravel roads by 3.6 % and 19.3 % than CaCl<sub>2</sub> and MgCl<sub>2</sub> stabilizers, respectively. However, LCCA results showed that the CaCl<sub>2</sub> stabilizer provided savings 17 % higher than LS and 15 % higher than MgCl<sub>2</sub>. The findings of this study will help guide transportation agency's choices for gravel roads, leading to a lower environmental impact and cost.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"219 ","pages":"Article 108334"},"PeriodicalIF":11.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143860723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-23DOI: 10.1016/j.jclepro.2025.145582
Haniye Safarpour, Miriam Tariq, Lynn E. Katz, Kasey M. Faust, Lauryn A. Spearing
Due to increasing water scarcity, industries are turning to alternative water sources of lower quality, necessitating the development and implementation of innovative water technologies (e.g., membrane processes, advanced oxidation). However, successful adoption of these technologies can fail due to organizational and regulatory barriers, factors that are often overlooked in the literature. To address this gap, we conducted and qualitatively analyzed semi-structured interviews with stakeholders from two chemical plants—one in Europe and one in the United States—to explore the drivers and barriers influencing the implementation of alternative water sources using new systems or technologies. Our findings reveal that organizational aspects, such as labor capacity, risk aversion, and hierarchical structures, are critical barriers and that a company’s willingness to be an early adopter can serve as a key driver. Further, regulatory differences contributed to contrasting stakeholder perspectives, with stakeholders at the European site emphasizing stringent water quality regulations more often than those from the US site. Results underscore the importance of a holistic, stakeholder-driven approach in designing and implementing sustainable water technologies for alternative water use. Our study offers practical guidance for decision-makers by highlighting the need to integrate organizational and regulatory considerations into technology assessments, ultimately enhancing the likelihood of successful adoption. For example, companies could pair new water systems with workforce training to address skill gaps and ensure smooth adoption. Additionally, our findings provide a foundation for quantitative analyses, such as system dynamics modeling, to further explore the complex interactions influencing water technology adoption in the industrial sector.
{"title":"Barriers and Drivers to Implement Alternative Water Use in the Chemical Industry: A Stakeholder Perspective","authors":"Haniye Safarpour, Miriam Tariq, Lynn E. Katz, Kasey M. Faust, Lauryn A. Spearing","doi":"10.1016/j.jclepro.2025.145582","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.145582","url":null,"abstract":"Due to increasing water scarcity, industries are turning to alternative water sources of lower quality, necessitating the development and implementation of innovative water technologies (e.g., membrane processes, advanced oxidation). However, successful adoption of these technologies can fail due to organizational and regulatory barriers, factors that are often overlooked in the literature. To address this gap, we conducted and qualitatively analyzed semi-structured interviews with stakeholders from two chemical plants—one in Europe and one in the United States—to explore the drivers and barriers influencing the implementation of alternative water sources using new systems or technologies. Our findings reveal that organizational aspects, such as labor capacity, risk aversion, and hierarchical structures, are critical barriers and that a company’s willingness to be an early adopter can serve as a key driver. Further, regulatory differences contributed to contrasting stakeholder perspectives, with stakeholders at the European site emphasizing stringent water quality regulations more often than those from the US site. Results underscore the importance of a holistic, stakeholder-driven approach in designing and implementing sustainable water technologies for alternative water use. Our study offers practical guidance for decision-makers by highlighting the need to integrate organizational and regulatory considerations into technology assessments, ultimately enhancing the likelihood of successful adoption. For example, companies could pair new water systems with workforce training to address skill gaps and ensure smooth adoption. Additionally, our findings provide a foundation for quantitative analyses, such as system dynamics modeling, to further explore the complex interactions influencing water technology adoption in the industrial sector.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"40 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143866404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-23DOI: 10.1016/j.watres.2025.123667
Peiyi Zhao, Ziyue Li, Ai Chen, Yongze Liu, Fangshu Qu, Dan Qu, Xinying Liu
The anaerobic membrane bioreactor (AnMBR) technology is increasingly applied in the treatment of municipal wastewater. However, its application in cold region still faces many challenges including low anaerobic digestion efficiency and high concentrations of dissolved methane (D-CH4). In this study, powdered activated carbon (PAC) was incorporated into AnMBR operated under wave-pulse mixing mode (P-W-AnMBR) to enhance the operational performance under low temperature condition. As temperature decreased and organic loading rate (OLR) elevated, the COD removal efficiency in the P-W-AnMBR maintained at a high level (93.4%∼95.8%) and exhibited favorable stability. The P-W-AnMBR could effectively prevent volatile fatty acid (VFA) accumulation with the lowest VFA concentrations of 22.0±3.9 mg·L-1. Correspondingly, the methane yield in P-W-AnMBR system reached high as 0.22±0.04 L·g-1 which was 1.5 times of that in conventional biogas-recirculation mixing AnMBR (B-AnMBR), while the D-CH4 supersaturation was only ∼1.05, showing a 52.4% decrease compared to B-AnMBR. According to higher electron transfer system activity and Cyt-C content, electron transfer process was enhanced in P-W-AnMBR, accounting for superior organics conversion to methane. Through a high average KLa as 4.50 h⁻¹, the D-CH4 readily transfer to the gas phase, thereby reducing the concentration of D-CH4 as well as increasing the proportion of gaseous methane. Energy analysis showed generation of methane energy could be augmented in P-W-AnMBR as OLR was elevated at 15 °C, thereby significantly reducing the net energy consumption. The combination of wave-pulse mixing and conductive PAC within AnMBR provides insights into low temperature resource recovery from municipal wastewater.
{"title":"Wave-pulse mixing coupled with powdered activated carbon enhances AnMBR in treating low temperature municipal wastewater and recovering dissolved CH4","authors":"Peiyi Zhao, Ziyue Li, Ai Chen, Yongze Liu, Fangshu Qu, Dan Qu, Xinying Liu","doi":"10.1016/j.watres.2025.123667","DOIUrl":"https://doi.org/10.1016/j.watres.2025.123667","url":null,"abstract":"The anaerobic membrane bioreactor (AnMBR) technology is increasingly applied in the treatment of municipal wastewater. However, its application in cold region still faces many challenges including low anaerobic digestion efficiency and high concentrations of dissolved methane (D-CH<sub>4</sub>). In this study, powdered activated carbon (PAC) was incorporated into AnMBR operated under wave-pulse mixing mode (P-W-AnMBR) to enhance the operational performance under low temperature condition. As temperature decreased and organic loading rate (OLR) elevated, the COD removal efficiency in the P-W-AnMBR maintained at a high level (93.4%∼95.8%) and exhibited favorable stability. The P-W-AnMBR could effectively prevent volatile fatty acid (VFA) accumulation with the lowest VFA concentrations of 22.0±3.9 mg·L<sup>-1</sup>. Correspondingly, the methane yield in P-W-AnMBR system reached high as 0.22±0.04 L·g<sup>-1</sup> which was 1.5 times of that in conventional biogas-recirculation mixing AnMBR (B-AnMBR), while the D-CH<sub>4</sub> supersaturation was only ∼1.05, showing a 52.4% decrease compared to B-AnMBR. According to higher electron transfer system activity and Cyt-<em>C</em> content, electron transfer process was enhanced in P-W-AnMBR, accounting for superior organics conversion to methane. Through a high average K<sub>La</sub> as 4.50 h⁻¹, the D-CH<sub>4</sub> readily transfer to the gas phase, thereby reducing the concentration of D-CH<sub>4</sub> as well as increasing the proportion of gaseous methane. Energy analysis showed generation of methane energy could be augmented in P-W-AnMBR as OLR was elevated at 15 °C, thereby significantly reducing the net energy consumption. The combination of wave-pulse mixing and conductive PAC within AnMBR provides insights into low temperature resource recovery from municipal wastewater.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"44 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143866785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-23DOI: 10.1016/j.jhazmat.2025.138395
Dan Yin, Ke Wang, Shilei Sun, Zhe Wang, Jinghui Wang, Baoguang Lu, Shijie You
H2S poses serious challenges in wastewater treatment plants, including unpleasant odors issues, toxicity conditions and infrastructure corrosion. In this study, we propose a novel in-situ H2S odor control process, which introduced goethite/goethite-fulvic acid (FA) bio-reduction and Fe-based catalysis into activated sludge recycling. This novel process reduced the activated sludge recycling rate from 40% to 5%, while increasing the sulfide removal efficiency from 52.97% to 87.61%. The sulfide removal capacities were 99.78 mgS/g Fe for goethite and 247.38 mgS/g Fe for goethite-FA. The bio-reduction of recycled sludge further enhanced the sulfide removal capacity to 103.43 mgS/g Fe in goethite and 337.74 mgS/g Fe for goethite-FA. Fulvic acid disrupted crystal structure, reduced electron transfer resistance and increased surface area of goethite, thereby enhancing bio-reduction efficiency and sulfide removal capacity. Moreover, aeration of inlet works further increased the sulfide removal efficiency from 12.67% to 52.83% in goethite sludge and from 23.73% to 87.61% in goethite-FA sludge. This enhancement was due to the catalytic effect of dissolved and ion-exchangeable Fe, which generated through complexation and electronegativity of recycled Fe-activated sludge. Overall, the novel H2S control process can achieve high sulfide removal efficiency while maintaining low recycling rate and operation costs.
{"title":"Enhanced in-situ sulfide removal via goethite-fulvic acid bio-reduction and iron-based catalysis in activated sludge recycling odor control system","authors":"Dan Yin, Ke Wang, Shilei Sun, Zhe Wang, Jinghui Wang, Baoguang Lu, Shijie You","doi":"10.1016/j.jhazmat.2025.138395","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.138395","url":null,"abstract":"H<sub>2</sub>S poses serious challenges in wastewater treatment plants, including unpleasant odors issues, toxicity conditions and infrastructure corrosion. In this study, we propose a novel in-situ H<sub>2</sub>S odor control process, which introduced goethite/goethite-fulvic acid (FA) bio-reduction and Fe-based catalysis into activated sludge recycling. This novel process reduced the activated sludge recycling rate from 40% to 5%, while increasing the sulfide removal efficiency from 52.97% to 87.61%. The sulfide removal capacities were 99.78 mgS/g Fe for goethite and 247.38 mgS/g Fe for goethite-FA. The bio-reduction of recycled sludge further enhanced the sulfide removal capacity to 103.43 mgS/g Fe in goethite and 337.74 mgS/g Fe for goethite-FA. Fulvic acid disrupted crystal structure, reduced electron transfer resistance and increased surface area of goethite, thereby enhancing bio-reduction efficiency and sulfide removal capacity. Moreover, aeration of inlet works further increased the sulfide removal efficiency from 12.67% to 52.83% in goethite sludge and from 23.73% to 87.61% in goethite-FA sludge. This enhancement was due to the catalytic effect of dissolved and ion-exchangeable Fe, which generated through complexation and electronegativity of recycled Fe-activated sludge. Overall, the novel H<sub>2</sub>S control process can achieve high sulfide removal efficiency while maintaining low recycling rate and operation costs.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"1 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-23DOI: 10.1016/j.ocecoaman.2025.107699
Tianze Gu , Chuck Chuan Ng
Climate change, driven by greenhouse gas emissions, poses a significant threat to life and livelihoods globally. China, the world's largest carbon emitter, yet has a significant area of coastal blue carbon (CBC) ecosystems covering mangroves, salt marshes, and seagrass beds which are vital for carbon sequestration. This study assesses the current state of these ecosystems, evaluates Chinese policies for CBC conservation, appraise Chinese blue carbon (BC) market development and compares them with international efforts. The findings highlight inadequate conservation measures and a lack of specific laws and enforcement for BC protection in China. The BC market suffers from unclear responsibilities, dampening corporate participation. Recommendations include hastening legal frameworks, bolstering enforcement, defining BC rights and ownership, and involving the public in BC initiatives. A SWOT analysis underscores the need for urgent action to bolster China's CBC ecosystems and market development. (139 words)
{"title":"Utilising coastal blue carbon (CBC) to mitigate the climate crisis: Current status and future analysis of China","authors":"Tianze Gu , Chuck Chuan Ng","doi":"10.1016/j.ocecoaman.2025.107699","DOIUrl":"10.1016/j.ocecoaman.2025.107699","url":null,"abstract":"<div><div>Climate change, driven by greenhouse gas emissions, poses a significant threat to life and livelihoods globally. China, the world's largest carbon emitter, yet has a significant area of coastal blue carbon (CBC) ecosystems covering mangroves, salt marshes, and seagrass beds which are vital for carbon sequestration. This study assesses the current state of these ecosystems, evaluates Chinese policies for CBC conservation, appraise Chinese blue carbon (BC) market development and compares them with international efforts. The findings highlight inadequate conservation measures and a lack of specific laws and enforcement for BC protection in China. The BC market suffers from unclear responsibilities, dampening corporate participation. Recommendations include hastening legal frameworks, bolstering enforcement, defining BC rights and ownership, and involving the public in BC initiatives. A SWOT analysis underscores the need for urgent action to bolster China's CBC ecosystems and market development. (139 words)</div></div>","PeriodicalId":54698,"journal":{"name":"Ocean & Coastal Management","volume":"266 ","pages":"Article 107699"},"PeriodicalIF":4.8,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-23DOI: 10.1016/j.jenvman.2025.125431
Jonah Lee Bas , Andrew W. Western , Robert Sargent , Wei Wen Wong , Perran Cook , Anna Lintern
Nitrogen and phosphorus pollution is a critical environmental issue that causes eutrophication of water bodies. High concentrations of these nutrients primarily come from agricultural areas and are driven by catchment characteristics such as climate, hydrology, topography, geology, land use, and land cover. In addition to these factors, specific farming practices – particularly, the use of dairy farm infrastructure and management of stocking rate – also influence stream nutrient concentrations. However, the extent of the influence of specific farming practices and their relative importance in determining nutrient concentrations in waterways remain unknown. In this paper, we used data from an agriculturally-intensive dairy farming region to investigate these relationships. We used statistical analyses and modelling to determine relationships between concentrations of ammonium (NH4+), filterable reactive phosphorus (FRP), nitrogen oxides (NOx), total phosphorus (TP), and total nitrogen (TN) with 26 predictors which include farm infrastructure density and stocking rate. We found that farm infrastructure and operational characteristics such as effluent pond density, dairy shed density, and stocking rate are consistently important predictors that influence concentrations of NH4+, FRP, NOx, TP, and TN during both wet and dry weather periods. This paper has shown that in addition to established factors such as land use and land cover, specific farming practices also play a role in influencing stream nutrient concentrations. By identifying key infrastructure and stocking rate as drivers of stream nutrient concentrations, this research emphasized the need for targeted management strategies to mitigate the impacts of agricultural activities on water quality.
{"title":"Correlations between catchment-scale farm infrastructure densities and stocking rate to stream nutrient concentrations in dairy-dominant catchments","authors":"Jonah Lee Bas , Andrew W. Western , Robert Sargent , Wei Wen Wong , Perran Cook , Anna Lintern","doi":"10.1016/j.jenvman.2025.125431","DOIUrl":"10.1016/j.jenvman.2025.125431","url":null,"abstract":"<div><div>Nitrogen and phosphorus pollution is a critical environmental issue that causes eutrophication of water bodies. High concentrations of these nutrients primarily come from agricultural areas and are driven by catchment characteristics such as climate, hydrology, topography, geology, land use, and land cover. In addition to these factors, specific farming practices – particularly, the use of dairy farm infrastructure and management of stocking rate – also influence stream nutrient concentrations. However, the extent of the influence of specific farming practices and their relative importance in determining nutrient concentrations in waterways remain unknown. In this paper, we used data from an agriculturally-intensive dairy farming region to investigate these relationships. We used statistical analyses and modelling to determine relationships between concentrations of ammonium (NH<sub>4</sub><sup>+</sup>), filterable reactive phosphorus (FRP), nitrogen oxides (NOx), total phosphorus (TP), and total nitrogen (TN) with 26 predictors which include farm infrastructure density and stocking rate. We found that farm infrastructure and operational characteristics such as effluent pond density, dairy shed density, and stocking rate are consistently important predictors that influence concentrations of NH<sub>4</sub><sup>+</sup>, FRP, NOx, TP, and TN during both wet and dry weather periods. This paper has shown that in addition to established factors such as land use and land cover, specific farming practices also play a role in influencing stream nutrient concentrations. By identifying key infrastructure and stocking rate as drivers of stream nutrient concentrations, this research emphasized the need for targeted management strategies to mitigate the impacts of agricultural activities on water quality.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"383 ","pages":"Article 125431"},"PeriodicalIF":8.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143864390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-23DOI: 10.1016/j.ecoenv.2025.118232
Mingyang Wu , Yanling Shu , Lulu Song , Youjie Wang
Background
Thallium, a highly toxic heavy metal, is well-documented for causing neurodevelopmental toxicity in animal models. However, epidemiological evidence regarding the effects of early-life thallium exposure on human neurodevelopment remains limited.
Objective
To investigate the trimester-specific associations of maternal thallium exposure with early childhood neurodevelopment.
Methods
A total of 423 mother-child pairs, with trimester-specific urinary samples, were followed up until the children reached 2 years of age. Thallium concentrations were measured using inductively coupled plasma mass spectrometry, while mental and psychomotor development indexes (MDI and PDI) were evaluated using the Chinese version of Bayley Scales of Infant Development (BSID-CR). Trimester-specific associations of specific gravity (SG)-adjusted urinary thallium concentrations with neurodevelopment were estimated using a multiple informant model.
Results
After adjusting for potential confounders, each unit increase in thallium exposure during the third trimester was associated with 6.55-point reduction in MDI domain (95 % CI: −12.88 to −0.22) and 7.13-point reduction in PDI domain (95 % CI: −13.51 to −0.74). When performing stratified analyses by child sex, the associations of third-trimester thallium concentrations with PDI were more prominent in boys (β: −9.57; 95 %CI: −17.51 to −1.64) than in girls (β: −0.87; 95 %CI: −14.51–12.76).
Conclusions
This birth cohort study suggests that prenatal thallium exposure during the third trimester, but not during other periods, had detrimental effects on early childhood mental and psychomotor development.
{"title":"Prenatal thallium exposure and child neurodevelopment at 2 years: a birth cohort study in China","authors":"Mingyang Wu , Yanling Shu , Lulu Song , Youjie Wang","doi":"10.1016/j.ecoenv.2025.118232","DOIUrl":"10.1016/j.ecoenv.2025.118232","url":null,"abstract":"<div><h3>Background</h3><div>Thallium, a highly toxic heavy metal, is well-documented for causing neurodevelopmental toxicity in animal models. However, epidemiological evidence regarding the effects of early-life thallium exposure on human neurodevelopment remains limited.</div></div><div><h3>Objective</h3><div>To investigate the trimester-specific associations of maternal thallium exposure with early childhood neurodevelopment.</div></div><div><h3>Methods</h3><div>A total of 423 mother-child pairs, with trimester-specific urinary samples, were followed up until the children reached 2 years of age. Thallium concentrations were measured using inductively coupled plasma mass spectrometry, while mental and psychomotor development indexes (MDI and PDI) were evaluated using the Chinese version of Bayley Scales of Infant Development (BSID-CR). Trimester-specific associations of specific gravity (SG)-adjusted urinary thallium concentrations with neurodevelopment were estimated using a multiple informant model.</div></div><div><h3>Results</h3><div>After adjusting for potential confounders, each unit increase in thallium exposure during the third trimester was associated with 6.55-point reduction in MDI domain (95 % CI: −12.88 to −0.22) and 7.13-point reduction in PDI domain (95 % CI: −13.51 to −0.74). When performing stratified analyses by child sex, the associations of third-trimester thallium concentrations with PDI were more prominent in boys (β: −9.57; 95 %CI: −17.51 to −1.64) than in girls (β: −0.87; 95 %CI: −14.51–12.76).</div></div><div><h3>Conclusions</h3><div>This birth cohort study suggests that prenatal thallium exposure during the third trimester, but not during other periods, had detrimental effects on early childhood mental and psychomotor development.</div></div>","PeriodicalId":303,"journal":{"name":"Ecotoxicology and Environmental Safety","volume":"297 ","pages":"Article 118232"},"PeriodicalIF":6.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-23DOI: 10.1016/j.ecoenv.2025.118225
Wenhao Ouyang , Chenjie Zhu , Yudi Li , Hong Huang , Fangming Li , Li Ling
Synthetic chemicals like triethyl citrate (TEC) are widely used in food packaging, pharmaceuticals, and cosmetics. Despite being considered safe, there are concerns about TEC's potential neurotoxic effects. In this study, we used network toxicology and molecular docking to examine TEC's impact on the nervous system. We identified 229 targets related to neurotoxicity and found that TEC may affect key processes such as cell death, inflammation, and neuronal health. Molecular docking showed strong interactions between TEC and proteins like MAPK3, SRC, CASP3, TNF, and BCL2, suggesting a risk of neural damage and the need for further research to assess TEC's safety.
{"title":"Assessing the neurotoxic risks of triethyl citrate in daily environmental exposure using network toxicology and molecular docking","authors":"Wenhao Ouyang , Chenjie Zhu , Yudi Li , Hong Huang , Fangming Li , Li Ling","doi":"10.1016/j.ecoenv.2025.118225","DOIUrl":"10.1016/j.ecoenv.2025.118225","url":null,"abstract":"<div><div>Synthetic chemicals like triethyl citrate (TEC) are widely used in food packaging, pharmaceuticals, and cosmetics. Despite being considered safe, there are concerns about TEC's potential neurotoxic effects. In this study, we used network toxicology and molecular docking to examine TEC's impact on the nervous system. We identified 229 targets related to neurotoxicity and found that TEC may affect key processes such as cell death, inflammation, and neuronal health. Molecular docking showed strong interactions between TEC and proteins like MAPK3, SRC, CASP3, TNF, and BCL2, suggesting a risk of neural damage and the need for further research to assess TEC's safety.</div></div>","PeriodicalId":303,"journal":{"name":"Ecotoxicology and Environmental Safety","volume":"297 ","pages":"Article 118225"},"PeriodicalIF":6.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sustainable Development (SD) depends on worldwide collaboration, political consensus, and a collective commitment to tackling interconnected challenges while ensuring inclusivity or "leaving no one behind." The COVID-19 pandemic exposed critical weaknesses in global systems, severely affecting Sustainable Development Goals (SDGs) and worsening inequalities, especially in the least developed countries (LDCs). The post-pandemic era has introduced new challenges, including increasing geopolitical tensions and conflict-driven economic growth, distracting attention from sustainability efforts. This commentary addresses these concerns by focusing on three essential pillars: prioritization, strategic planning, and finance resources. It proposes five leverage points (LPs) addressing social, environmental, economic, technological, and developmental dimensions. These LPs demonstrate integrated methods to enhance interconnections, minimize trade-offs, and revitalize progress toward the SDGs. Such strategies are crucial for promoting equitable and resilient development in the face of global crises while keeping sustainability at the forefront.
{"title":"Crafting a Resilient and Sustainable Future amid Major Crises","authors":"Mohamed Elsamadony, Salvatore Flavio Pileggi, Jibao Liu, Manabu Fujii","doi":"10.1016/j.jclepro.2025.145583","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.145583","url":null,"abstract":"Sustainable Development (SD) depends on worldwide collaboration, political consensus, and a collective commitment to tackling interconnected challenges while ensuring inclusivity or \"leaving no one behind.\" The COVID-19 pandemic exposed critical weaknesses in global systems, severely affecting Sustainable Development Goals (SDGs) and worsening inequalities, especially in the least developed countries (LDCs). The post-pandemic era has introduced new challenges, including increasing geopolitical tensions and conflict-driven economic growth, distracting attention from sustainability efforts. This commentary addresses these concerns by focusing on three essential pillars: prioritization, strategic planning, and finance resources. It proposes five leverage points (LPs) addressing social, environmental, economic, technological, and developmental dimensions. These LPs demonstrate integrated methods to enhance interconnections, minimize trade-offs, and revitalize progress toward the SDGs. Such strategies are crucial for promoting equitable and resilient development in the face of global crises while keeping sustainability at the forefront.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"273 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143866450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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