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Unequal airborne exposure to toxic metals associated with race, ethnicity, and segregation in the USA
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Unequal airborne exposure to toxic metals associated with race, ethnicity, and segregation in the USA
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Journal Article
Unequal airborne exposure to toxic metals associated with race, ethnicity, and segregation in the USA
2022
Overview
Persons of color have been exposed to a disproportionate burden of air pollution across the United States for decades. Yet, the inequality in exposure to known toxic elements of air pollution is unclear. Here, we find that populations living in racially segregated communities are exposed to a form of fine particulate matter with over three times higher mass proportions of known toxic and carcinogenic metals. While concentrations of total fine particulate matter are two times higher in racially segregated communities, concentrations of metals from anthropogenic sources are nearly ten times higher. Populations living in racially segregated communities have been disproportionately exposed to these environmental stressors throughout the past decade. We find evidence, however, that these disproportionate exposures may be abated though targeted regulatory action. For example, recent regulations on marine fuel oil not only reduced vanadium concentrations in coastal cities, but also sharply lessened differences in vanadium exposure by segregation.
A new study assesses differences in exposure to particulate air pollution between racially segregated and racially integrated communities in the U.S, and finds that segregated communities are exposed to higher proportions of toxic and carcinogenic metals.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
