Thursday, September 1, 2016

How Does Exposure to Air Pollution Vary by Race, Age and Location?

English: Smog and air pollution in Pasadena Hi...
English: Smog and air pollution in Pasadena Highway, downtown Los Angeles فارسی: آلودگی شدید هوا در بزرگراه پاسادنا، مرکز شهر لس آنجلس (Photo credit: Wikipedia)
Factors influencing time-location patterns and their impact on estimates of exposure: the Multi-Ethnic Study of Atherosclerosis and Air Pollution (MESA Air) (8 page pdf, Elizabeth W. Spalt, Cynthia L. Curl, Ryan W. Allen, Martin Cohen, Kayleen Williams, Jana A. Hirsch, Sara D. Adar and Joel D. Kaufman, Journal of Exposure Science and Environmental Epidemiology, Apr. 29, 2015)

Key Quotes: 

“MESA Air aims to quantify the relation between individual-level estimates of long-term outdoor air pollution exposure and the progression of subclinical atherosclerosis and the incidence of cardiovascular disease (CVD)” 

“MESA Air is an ancillary study to the Multi-Ethnic Study of Atherosclerosis (MESA7), a long-term study of the progression of CVD in adults.” 

“Chinese participants spend more time indoors and less time outdoors compared with Whites, Blacks, and Hispanics participants…The amounts of time spent indoors by Black and Hispanic participants were similar, whereas White and Chinese participants spent ~ 2 h less and 3 h more time indoors, respectively, than Hispanic participants “ 

“standard factors can overestimate air pollution predictions and that the overestimation may increase with age. This analysis highlights important limitations of the existing literature regarding the time-location habits of US adults.”

“this analysis adds key time-location data to the literature by providing more recent information on an older and more ethnically/racially diverse population and describing potential demographic, socioeconomic, health, and built environment predictors of total time indoors and time indoors at home. “

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