华南典型城市区域PM_(2.5)中七种塑化剂污染特征和暴露研究

Pollution Characteristics and Human Exposure of 7 Plasticizers in PM_(2.5) from Typical Urban Region of Southeast China

对华南地区某典型城市工业区和居民区两种不同区域的大气PM2.5中7种塑化剂污染分布特征和暴露水平进行了研究。结果表明,在监测期间两类区域大气PM2.5中主要以Dn BP、DEHP为主,五日平均浓度分别为38.3~42.9 ng/m3、119~144 ng/m3,两类区域的PM2.5中7种塑化剂总体污染浓度水平相当,居民区总体污染情况略轻于工业区。7种塑化剂的成人室外PM2.5呼吸暴露水平范围为0.051 9~36.8 ng/（kg·d）,其中工业区的DEHA暴露水平比居民区的高出一倍,其它的几种塑化剂在两类区域中的呼吸暴露水平相当。

The research selected an industrial area and a residential area of the typical urban region in southeast China to study the pollution characteristics and human exposure of 7 plasticizers in PM25. The results indicated DnBP and DEHP were the major plastieizers in PM2.5 of two areas during monitoring period. The average concentration were DnBP 38.3 - 42. 9 ng/m3, DE- HP 119 - 144 ng/m3. The total concentration of 7 plasticizers has tiny difference between two areas and the pollution status in resi- dential area Was little better than the industrial area. Results of daily intake of inhaling air show that the adult outdoor inhaling ex- posure volume in PM2.5 of the plasticizers ranged from 0. 051 9 to 36. 8 ng/ （kg · d）. The adult exposure volume of DEHA in PM2.5 of industrial area was more than two times higher than in the residential area. The adult exposure volume of the other plasti- cizers was tiny differencebetween the two areas.