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>Environmental justice and drinking water quality: are there socioeconomic disparities in nitrate levels in U.S. drinking water?
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Environmental justice and drinking water quality: are there socioeconomic disparities in nitrate levels in U.S. drinking water?
BackgroundLow-income and minority communities often face disproportionately high pollutant exposures. The lead crisis in Flint, Michigan, has sparked concern about broader socioeconomic disparities in exposures to drinking water contaminants. Nitrate is commonly found in drinking water, especially in agricultural regions, and epidemiological evidence suggests elevated risk of cancer and birth defects at levels below U.S. EPA’s drinking water standard (10 mg/L NO3-N). However, there have been no nationwide assessments of socioeconomic disparities in exposures to nitrate or other contaminants in U.S. drinking water. The goals of this study are to identify determinants of nitrate concentrations in U.S. community water systems (CWSs) and to evaluate disparities related to wealth or race/ethnicity.
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机译:背景低收入和少数民族社区经常面临成比例的高污染物暴露。密歇根州弗林特的铅危机引发了人们对饮用水污染物接触中更大的社会经济差距的担忧。硝酸盐通常存在于饮用水中,尤其是在农业地区,流行病学证据表明,低于美国EPA饮用水标准(10μg/ L NO3-N)的水平,罹患癌症和先天缺陷的风险增加。但是,还没有全国范围内对美国饮用水中硝酸盐或其他污染物的暴露造成的社会经济差异的评估。这项研究的目的是确定美国社区供水系统(CWS)中硝酸盐浓度的决定因素,并评估与财富或种族/民族有关的差异。
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