| Literature DB >> 31367959 |
Kai-Qiang He1, Chun-Gang Yuan2,3, Lian-Qing Yin1, Ke-Gang Zhang1, Pei-Yao Xu1, Jiao-Jiao Xie1, Yi-Wen Shen1.
Abstract
The distribution and bioavailability of arsenic (As) in indoor/outdoor total suspended particulates (TSP), inhalable particulate matters (PM10), and fine particulate matters (PM2.5) in Baoding, China were investigated. The average I/O ratios for TSP, PM10, and PM2.5 were 0.52, 0.66, and 0.96, respectively. There was no significant correlation between indoor/outdoor TSP, PM10, and PM2.5. The indoor/outdoor concentrations of As surpassed the limited value of As. I/O ratios of arsenic in TSP, PM10, and PM2.5 were 0.52, 0.58, and 0.55, respectively. The contents of arsenic in different fractions were mainly affected by the total concentrations of arsenic in particulate matters (PM) rather than the particle sizes for TSP and PM10. Arsenic was mainly in non-specifically sorbed fraction (F1) in both indoor and outdoor PM2.5. The evaluated carcinogenic risk (CR) was within the safe level. The bioavailability of As increased with particle size decreasing for both indoor and outdoor PM. The potential bioavailability of As in outdoor particles was higher than that of indoor particles with the same size, especially PM2.5.Entities:
Keywords: Arsenic; Bioavailability; Fraction; Indoor and outdoor; Particulate matters
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Year: 2019 PMID： 31367959 DOI： 10.1007/s10661-019-7643-5
Source DB: PubMed Journal: Environ Monit Assess ISSN： 0167-6369 Impact factor: 2.513