作　　者： ; ; ; ;

机构地区： 中国科学院广州地球化学研究所有机地球化学国家重点实验室

出　　处： 《环境科学学报》 2005年第3期409-413,共5页

摘　　要： 2 0 0 3年 1月采集广州市城区包括居民区、城区交通主干道、垃圾堆放场、休闲旅游区、商业区和工业区等 2 0个道路灰尘样品 .参照USE PA80 61系列方法 ,研究了广州市城区道路灰尘中邻苯二甲酸酯 (PhthalateEsters,PAEs)的分布特征 .结果表明 ,道路灰尘样品中PAEs含量范围为 4 48～ 3 70 42 μg·g- 1 (干重 ) ,平均值为 13 2 5 8μg·g- 1 (干重 ) ,TOC质量分数为 1 42 %～ 16 93 % .综合商业大厦、繁华商业步行街、饮料生产厂区、城区交通主干道和农贸市场道路灰尘PAEs含量较高 ;DEHP、DnBP和DiBP为道路灰尘中主要的PAEs;道路灰尘中wDEHP>wDnBP>wDiBP>wDnOP>wDEP>wDMP. Road dust samples of Guangzhou city were collected for analysis of Phthalate Esters (PAEs) on 11～16 Feb. 2003, that relative humidity were 60%～80% and temperature were 15℃～25℃. The concentrations and distribution characteristics of the six major PAEs in 20 roads dust samples collected in different functional districts of Guangzhou city were measured by using USEPA 8061 series methods under quality assurance (QA) and quality control (QC).The results showed that the concentrations of total PAEs in the road dust samples ranged from 4.48μg·g^(-1) to 370.42μg·g^(-1), average concentration was 132.58μg·g^(-1) (dry weight),and TOC were 1.42 %～16.93 %(proportion of mass). The road dusts selected from commercial plaza, industrial district, heavy traffic highway and residential district had been heavily contaminated. The highest concentration of total PAEs in road dust sample was 370.42μg·g^(-1) at a new large business building. The distribution patterns of six principal PAEs that DMP, DEP, DnBP, DiBP, DnOP and DEHP in road dust samples showed the resemblance. The DEHP,DnBP and DiBP which were the predominance of PAEs in road dust samples were clearly observed,and the concentrations showed an order that w_(DEHP)>w_(DnBP)>w_(DiBP)>w_(DnOP)>w_(DEP)>w_(DMP).

关 键 词： 邻苯二甲酸酯 污染物 灰尘 有机化合物 环境评价 沉积物 广州市

领　　域： [环境科学与工程]