Olga Rolenko/Getty Images(NEW YORK) New research is shedding light on just how much higher proportions of dangerous toxins people in minority communities are breathing in. Populations in racially segregated communities in the U.S. may be more likely to be exposed to a form of air pollution, according to a study published in Nature Communications on Tuesday. Researchers combined air pollution monitoring and American Community Survey data from 2014 to 2019 to assess air pollution exposure across the U.S. and found that communities with a high degree of racial residential segregation are exposed to concentrations of total fine particulate matter that are two times higher. Concentrations of metals from anthropogenic sources are over 10 times higher when compared to communities with a low degree of racial residential segregation, John Kodros, who authored the study as a research scientist at Colorado State University, told ABC News. The research also suggests these communities were expose
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Centuries-old smoke particles preserved in the ice reveal a fiery past in the Southern Hemisphere and shed new light on the future impacts of global climate change, according to a research led by Harvard University and a group of international researchers from the Desert Research Institute in Nevada and the University of Hong Kong, etc. recently published in
Science Advances. Up till now, the magnitude of past fire activity, and thus the amount of smoke in the preindustrial atmosphere, has not been well characterised, said Pengfei LIU, a former graduate student and postdoctoral fellow at the Harvard John A Paulson School of Engineering and Applied Sciences (SEAS) and first author of the paper. These results have importance for understanding the evolution of climate change from the 1750s until today, and for predicting future climate.