Elevated airborne exposures of teenagers to manganese, chromium, and iron from steel dust and New York City's subway system.

ABSTRACT: There is increasing interest in potential health effects of airborne exposures to hazardous air pollutants at relatively low levels. This study focuses on sources, levels, and exposure pathways of manganese, chromium, and iron among inner-city high school students in New York City (NYC) and the contribution of subways. Samples of fine particulate matter (PM2.5) were collected during winter and summer over 48 h periods in a variety of settings including inside homes, outdoors, and personal samples (i.e., sampling packs carried by subjects). PM2.5 samples were also collected in the NYC subway system. For NYC, personal samples had significantly higher concentrations of iron, manganese, and chromium than did home indoor and ambient samples. The ratios and strong correlations between pairs of e

SUBMITTER: Chillrud SN 

PROVIDER: S-EPMC3142791 | biostudies-literature | 2004 Feb

REPOSITORIES: biostudies-literature