乌鲁木齐主城区不透水层(玻璃表面)有机膜中PAEs的污染特征  

The Pollution Characteristics of PAEs in Organic Films on Impervious Surfaces (Glass Surfaces) of the Urumqi Downtown

作　　者：刘浩峰 刘玉燕 吉才液 于永信 王林 魏婷[3] 付博 LIU Haofeng;LIU Yuyan;JI Caiye;YU Yongxin;WANG Lin;WEI Ting;FU Bo(Changjizhou Environmental Monitoring Station,Changji,Xinjiang 831100,China;School of Geography and Environmental Science,Hainan Normal University,Haikou,Hainan 571158,China;Department of Chemistry and Applied Chemistry,Changji University,Changji,Xinjiang 831100,China)

机构地区：[1]新疆昌吉州环境监测站,新疆昌吉831100 [2]海南师范大学地理与环境科学学院,海口571158 [3]昌吉学院化学与应用化学系,新疆昌吉831100

出　　处：《地球与环境》2019年第2期194-201,共8页Earth and Environment

基　　金：国家自然科学基金(41867060;41461090);海南省自然科学基金(418MS049)

摘　　要：采集乌鲁木齐主城区不透水层(玻璃表面)有机膜样品,使用气相色谱法测对样品中PAEs(DMP、DEP、DBP和DEHP)进行分析,探讨不透水层膜中PAEs累积水平、组分特征与空间分布等污染特征。结果表明:乌鲁木齐不透水层(玻璃表面)有机膜中的PAEs以DEP为主,其次是DBP,其他PAEs相对较少;在空间分布上,DMP、DEP、DBP在沙依巴克区含量最高,其次是新市区,水磨沟区含量最低,DEHP与其他PAEs的空间分布略有差异,表现为在新市区含量最高;在功能区分布上,DMP、DEP、DBP均表现为商业区>工业区>交通密集区>居民文教区>公园广场区,DEHP与其他PAEs功能区分布略有差异,表现为交通密集区>居民文教区>商业区>工业区>公园广场区,PAEs来源的不同是造成其功能区分布差异的主要因素;乌鲁木齐ΣPAEs及不同类型的PAEs含量都高于其卫星城昌吉市3～4个数量级,这从一定程度上揭示出大城市不透水层PAEs的含量可能远大于中小城市。本项研究将有利于深入认识干旱区城市典型介质不透水层中的PAEs富集及其机制,为准确预测PAEs污染趋势及制定相关环境保护政策提供科学依据。We collected organic film samples from impermeable surfaces(window glass)of the downtown Urumqi,and analyzed their contents of Phthalate acid esters(PAEs),including dimethyl phthalate(DMP),diethyl phthalate(DEP),dibutyl phthalate(DBP),and di-2-ethylhexyl phthalate(DEHP),by a gas chromatography.The pollution characteristics,accumulation,component and spatial distribution,of PAEs in the impermeable layer membrane were investigated.The results showed that PAEs in the impervious surfaces of downtown Urumqi were mainly DEP,followed by DBP,and other PAEs were relatively insignificant.In terms of the spatial distribution,contents of DMP,DEP and DBP were the highest in the Shayibake area,followed by in the new city,and were the lowest in the Shuimogou area;compared to other PAEs,the spatial distribution of DEHP was slightly different,the highest content was found in the new city.In terms of the functional areas,contents of DMP,DEP and DBP showed a trend of all commercial areas>industrial areas>traffic intensive areas>residential culture and education areas>park square areas.The distribution trend of DEHP in functional areas,that is traffic intensive areas>commercial areas>industrial areas>park square areas,was slightly different from those of other PAEs.The contents of ΣPAEs and individual PAEs in the downtown Urumqi were 3-4 orders of magnitude higher than in satellite cities,e.g.the Changji city,suggesting that contents of PAEs in impervious surfaces of large cities may be much higher than those of small and medium-sized cities.This study will contribute to understanding of the enrichment of PAEs and its mechanism in typical media of impermeable surfaces in the arid region.It provides scientific supports for the accurate assessment of PAEs pollution and the formulation of relevant environmental protection policies.

关 键 词：不透水层 有机膜 PAES 污染特征 乌鲁木齐 

分 类 号：X508[环境科学与工程—环境工程]