Environmental science & technology最新文献

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Predicting Redox Conditions in Groundwater at a National Scale Using Random Forest Classification. 利用随机森林分类法预测全国范围内地下水的氧化还原条件
Environmental science & technology Pub Date : 2024-03-07 DOI: 10.7185/gold2023.16982
A. Tesoriero, Susan Wherry, Danielle Dupuy, Tyler Johnson
{"title":"Predicting Redox Conditions in Groundwater at a National Scale Using Random Forest Classification.","authors":"A. Tesoriero, Susan Wherry, Danielle Dupuy, Tyler Johnson","doi":"10.7185/gold2023.16982","DOIUrl":"https://doi.org/10.7185/gold2023.16982","url":null,"abstract":"Redox conditions in groundwater may markedly affect the fate and transport of nutrients, volatile organic compounds, and trace metals, with significant implications for human health. While many local assessments of redox conditions have been made, the spatial variability of redox reaction rates makes the determination of redox conditions at regional or national scales problematic. In this study, redox conditions in groundwater were predicted for the contiguous United States using random forest classification by relating measured water quality data from over 30,000 wells to natural and anthropogenic factors. The model correctly predicted the oxic/suboxic classification for 78 and 79% of the samples in the out-of-bag and hold-out data sets, respectively. Variables describing geology, hydrology, soil properties, and hydrologic position were among the most important factors affecting the likelihood of oxic conditions in groundwater. Important model variables tended to relate to aquifer recharge, groundwater travel time, or prevalence of electron donors, which are key drivers of redox conditions in groundwater. Partial dependence plots suggested that the likelihood of oxic conditions in groundwater decreased sharply as streams were approached and gradually as the depth below the water table increased. The probability of oxic groundwater increased as base flow index values increased, likely due to the prevalence of well-drained soils and geologic materials in high base flow index areas. The likelihood of oxic conditions increased as topographic wetness index (TWI) values decreased. High topographic wetness index values occur in areas with a propensity for standing water and overland flow, conditions that limit the delivery of dissolved oxygen to groundwater by recharge; higher TWI values also tend to occur in discharge areas, which may contain groundwater with long travel times. A second model was developed to predict the probability of elevated manganese (Mn) concentrations in groundwater (i.e., ≥50 μg/L). The Mn model relied on many of the same variables as the oxic/suboxic model and may be used to identify areas where Mn-reducing conditions occur and where there is an increased risk to domestic water supplies due to high Mn concentrations. Model predictions of redox conditions in groundwater produced in this study may help identify regions of the country with elevated groundwater vulnerability and stream vulnerability to groundwater-derived contaminants.","PeriodicalId":514294,"journal":{"name":"Environmental science & technology","volume":"41 21","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140076850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
My New Sofa. 我的新沙发。
IF 11.4
Environmental science & technology Pub Date : 2015-05-19
David L Sedlak
{"title":"My New Sofa.","authors":"David L Sedlak","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":514294,"journal":{"name":"Environmental science & technology","volume":"49 10","pages":"5843-4"},"PeriodicalIF":11.4,"publicationDate":"2015-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34298698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comment on "Growing rice aerobically markedly decreases arsenic accumulation". 评“水稻有氧栽培可显著降低砷积累”。
IF 11.4
Environmental science & technology Pub Date : 2009-05-15
Alexander van Geen, John M Duxbury
{"title":"Comment on \"Growing rice aerobically markedly decreases arsenic accumulation\".","authors":"Alexander van Geen, John M Duxbury","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":514294,"journal":{"name":"Environmental science & technology","volume":"43 10","pages":"3971; author reply 3972-3"},"PeriodicalIF":11.4,"publicationDate":"2009-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"28333600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mapping fluoride and arsenic hot spots. 绘制氟化物和砷热点分布图。
IF 11.4
Environmental science & technology Pub Date : 2008-05-15 DOI: 10.1021/es087106v
Naomi Lubick
{"title":"Mapping fluoride and arsenic hot spots.","authors":"Naomi Lubick","doi":"10.1021/es087106v","DOIUrl":"https://doi.org/10.1021/es087106v","url":null,"abstract":"","PeriodicalId":514294,"journal":{"name":"Environmental science & technology","volume":"42 10","pages":"3483-4"},"PeriodicalIF":11.4,"publicationDate":"2008-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1021/es087106v","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27493595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Do-it-yourself power. 自己动手能力。
IF 11.4
Environmental science & technology Pub Date : 2008-05-15 DOI: 10.1021/es087112r
Erika Engelhaupt
{"title":"Do-it-yourself power.","authors":"Erika Engelhaupt","doi":"10.1021/es087112r","DOIUrl":"https://doi.org/10.1021/es087112r","url":null,"abstract":"","PeriodicalId":514294,"journal":{"name":"Environmental science & technology","volume":"42 10","pages":"3489-90"},"PeriodicalIF":11.4,"publicationDate":"2008-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1021/es087112r","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27493599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Do food miles matter? 食物里程重要吗?
IF 11.4
Environmental science & technology Pub Date : 2008-05-15 DOI: 10.1021/es087190e
Erika Engelhaupt
{"title":"Do food miles matter?","authors":"Erika Engelhaupt","doi":"10.1021/es087190e","DOIUrl":"https://doi.org/10.1021/es087190e","url":null,"abstract":"","PeriodicalId":514294,"journal":{"name":"Environmental science & technology","volume":"42 10","pages":"3482"},"PeriodicalIF":11.4,"publicationDate":"2008-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1021/es087190e","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27493594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 31
Interfacial chemistry in indoor environments. 室内环境中的界面化学。
IF 11.4
Environmental science & technology Pub Date : 2008-05-15 DOI: 10.1021/es087114b
Glenn Morrison
{"title":"Interfacial chemistry in indoor environments.","authors":"Glenn Morrison","doi":"10.1021/es087114b","DOIUrl":"https://doi.org/10.1021/es087114b","url":null,"abstract":"","PeriodicalId":514294,"journal":{"name":"Environmental science & technology","volume":"42 10","pages":"3494-9"},"PeriodicalIF":11.4,"publicationDate":"2008-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1021/es087114b","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27493601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 60
PFOS alters immune response at very low exposure levels. 全氟辛烷磺酸在极低的暴露水平下就会改变免疫反应。
IF 11.4
Environmental science & technology Pub Date : 2008-05-15 DOI: 10.1021/es0871098
Catherine M Cooney
{"title":"PFOS alters immune response at very low exposure levels.","authors":"Catherine M Cooney","doi":"10.1021/es0871098","DOIUrl":"https://doi.org/10.1021/es0871098","url":null,"abstract":"","PeriodicalId":514294,"journal":{"name":"Environmental science & technology","volume":"42 10","pages":"3486-7"},"PeriodicalIF":11.4,"publicationDate":"2008-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1021/es0871098","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27493598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Dead zone plan adrift. 盲区计划随波逐流。
IF 11.4
Environmental science & technology Pub Date : 2008-05-15 DOI: 10.1021/es087108f
Ericka Engelhaupt
{"title":"Dead zone plan adrift.","authors":"Ericka Engelhaupt","doi":"10.1021/es087108f","DOIUrl":"https://doi.org/10.1021/es087108f","url":null,"abstract":"","PeriodicalId":514294,"journal":{"name":"Environmental science & technology","volume":"42 10","pages":"3485-6"},"PeriodicalIF":11.4,"publicationDate":"2008-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1021/es087108f","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27493597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Atrazine effects in Xenopus aren't reproducible. 阿特拉津对爪蟾的影响是不可复制的。
IF 11.4
Environmental science & technology Pub Date : 2008-05-15 DOI: 10.1021/es087113j
Rebecca Renner
{"title":"Atrazine effects in Xenopus aren't reproducible.","authors":"Rebecca Renner","doi":"10.1021/es087113j","DOIUrl":"https://doi.org/10.1021/es087113j","url":null,"abstract":"","PeriodicalId":514294,"journal":{"name":"Environmental science & technology","volume":"42 10","pages":"3491-3"},"PeriodicalIF":11.4,"publicationDate":"2008-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1021/es087113j","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27493600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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