Phthalate esters in atmospheric PM2.5 and PM10 in the semi-arid city of Xi'an, Northwest China: Pollution characteristics, sources, health risks, and relationships with meteorological factors
Phthalate esters in atmospheric PM2.5 and PM10 in the semi-arid city of Xi'an, Northwest China: Pollution characteristics, sources, health risks, and relationships with meteorological factors
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半干旱城市西安大气PM2.5和PM10中邻苯二甲酸酯的污染特征、来源、健康风险及其与气象因素的关系
DOI：
10.1016/j.chemosphere.2019.125226
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发表时间：
2020
期刊：
影响因子：
8.8
通讯作者：
Lu Xinwei
中科院分区：
文献类型：
--
作者：
Ma Bianbian;Wang Lijun;Tao Wendong;Liu Mengmei;Zhang Panqing;Zhang Shengwei;Li Xiaoping;Lu Xinwei
于2016年11月至2017年11月在中国西北半干旱城市西安市采集PM2.5和PM10样本，对6种重点邻苯二甲酸酯（PAEs）的污染特征、来源、健康风险及影响因素进行分析。结果表明：PM2.5和PM10的6个PAEs （Sigma(6)PAEs）之和分别为85.5 ng m（-3）和94.5 ng m(-3)，郊区站点高于城市站点，冬季>春季>夏季>秋季。PAE含量最高的是邻苯二甲酸二乙己基酯（DEHP）。与PM2.5和pm10结合的PAEs主要与增塑剂的使用以及化妆品和个人护理产品、建筑材料和家居用品的使用有关。温度、相对湿度和能见度对PM和PM结合PAEs浓度的影响强于气压和风速。气压和相对湿度与PM和大部分PM结合PAEs浓度呈正相关，而温度、能见度和风速与PM和PM结合PAEs浓度呈负相关。人体吸入暴露于pm结合PAEs的非致癌风险在10（-7）至10（-3）之间，表明非致癌风险较低，郊区站点的非致癌风险高于城市站点，儿童高于成人。人体吸入暴露于pm结合的DEHP和邻苯二甲酸丁苯酯（BBP）的致癌风险范围为10(-12)~ 10(-10)，表明其致癌风险较低，依次为郊区站点bb0、城市站点>和DEHP BBP。应特别注意郊区长期低剂量接触PAEs的情况，特别是在冬季和春季。(C) 2019 Elsevier Ltd.版权所有。
PM2.5 and PM10 samples were collected in the semi-arid city of Xi'an in Northwest China from November 2016 to November 2017 and analyzed to assess pollution characteristics, sources, health risks, and influencing factors of 6 priority phthalate esters (PAEs). The results showed that the sum of the 6 PAEs (Sigma(6)PAEs) was 85.5 ng m(-3) in PM2.5 and 94.5 ng m(-3) in PM10, being higher at the suburban site than the urban site and winter > spring > summer > autumn. The most abundant PAE was bis(2-ethylhexyl phthalate) (DEHP). PM2.5- and PM10-bound PAEs were associated mainly with the use of plasticizers plus the uses of cosmetics and personal care products, construction materials, and home furnishings. Temperature, relative humidity, and visibility had stronger influences on the concentrations of PM and PM-bound PAEs than pressure and wind speed. Pressure and relative humidity were positively correlated with the concentrations of PM and most of the PM-bound PAEs, while temperature, visibility and wind speed had negative correlations with the concentrations of PM and PM-bound PAEs. The non-carcinogenic risks of human inhalation exposure to PM-bound PAEs were in the range of 10(-7) to 10(-3), suggesting low non-cancer risks, which were higher at the suburban site than the urban site and higher to children than adults. The cancer risks of human inhalation exposure to PM-bound DEHP and butyl benzyl phthalate (BBP) were in the range of 10(-12) to 10(-10), suggesting low carcinogenic risks, being in the order of the suburban site > the urban site and DEHP > BBP. Special attention should be paid to long-term low dose exposure to PAEs in the suburb, especially in winter and spring. (C) 2019 Elsevier Ltd. All rights reserved.