[Exposure Levels, Sources, and Health Risks of Heavy Metal Components of PM in Housewives in Rural Shanghai].

To investigate exposure characteristics and potential health risk of PM-bound heavy metals in housewives in rural areas, 265 personal exposure samples from 143 subjects were collected in the Songjiang district, Shanghai from February 2017 to June 2018. Mass concentrations of 13 elements in PM were determined by energy-dispersive X-ray fluorescence spectrometry (ED-XRF). The sources of heavy metal components in PM were analyzed using positive matrix factorization (PMF).