Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, People's Republic of China.
MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, People's Republic of China.
Environ Monit Assess. 2019 Jul 31;191(8):528. doi: 10.1007/s10661-019-7643-5.
The distribution and bioavailability of arsenic (As) in indoor/outdoor total suspended particulates (TSP), inhalable particulate matters (PM), and fine particulate matters (PM) in Baoding, China were investigated. The average I/O ratios for TSP, PM, and PM were 0.52, 0.66, and 0.96, respectively. There was no significant correlation between indoor/outdoor TSP, PM, and PM. The indoor/outdoor concentrations of As surpassed the limited value of As. I/O ratios of arsenic in TSP, PM, and PM 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 PM. Arsenic was mainly in non-specifically sorbed fraction (F1) in both indoor and outdoor PM. 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 PM.
研究了中国保定室内/外总悬浮颗粒物（TSP）、可吸入颗粒物（PM）和细颗粒物（PM）中砷（As）的分布和生物利用度。TSP、PM 和 PM 的平均 I/O 比分别为 0.52、0.66 和 0.96。室内/外 TSP、PM 和 PM 之间没有显著相关性。As 的室内/外浓度超过了 As 的限量值。TSP、PM 和 PM 中砷的 I/O 比分别为 0.52、0.58 和 0.55。不同馏分中砷的含量主要受颗粒物（PM）中总砷浓度的影响，而不是 TSP 和 PM 的粒径。砷主要以非特异性吸附态（F1）存在于室内和室外 PM 中。评估的致癌风险（CR）处于安全水平。As 的生物利用度随着室内和室外 PM 粒径的减小而增加。对于相同粒径的室外颗粒和室内颗粒，As 的潜在生物利用度更高，尤其是 PM。
