呼和浩特市大气中酞酸酯的初步研究

Study on Atmospheric Phthalate Ester in Huhhot

通过对呼和浩特市不同功能区和不同季度的大气中酞酸酯污染物的采样监测调查,证实了酞酸酯不仅存在于大气中,且浓度比较高,为53lng/m^3,是草原地区背景值(10～33ng/m^3)的16倍以上。根据调查结果表明,不同功能区中大气中酞酸酯(DNBP和DEHP)的浓度差异较大;相同功能区的不同季节(冬、夏季),酞酸酯浓度也存在较大差异,但酞酸酯浓度与大气颗粒物浓度呈现出良好的相关性,冬、夏季的相关系数分别为0.971和0.866。

Atmospheric phthalate esters were monitoring during different seasons and at different function areas in Huhhot. The monitoring results showed that phthalat esters (DNBP+ DEHP) did exist in the atmosphere, and the concentration was up to 531ng/m3 more than 16-fold in grassland belt, and differed in different function areas, also differed in the different seasons at same function areas. Concentration of phthalate esters was well correlated with atmospheric par-ticulate concentration, the correlation coefficient in Winter and Summer were 0.971 and 0.866 respectively.