塑胶跑道中有机磷酸酯的含量及健康风险

发布时间：2018-05-08 01:12

本文选题：有机磷酸酯 + 阻燃剂　；参考：《环境科学》2017年11期

【摘要】：采用超声萃取-层析净化-气相色谱/质谱联用仪定量分析塑胶跑道中7种有机磷酸酯(OPEs),方法回收率为71.41%~110.58%,标准曲线相关系数r0.99,质控良好.采集并分析了成都市12个学校内的塑胶跑道样品中OPEs的含量及分布.结果表明2/3学校内的塑胶跑道样品中检出了OPEs,其中磷酸三正丁酯[tri-n-butyl phosphate,TnBP]、磷酸三异辛酯[tris(2-ethylhexyl)phosphate,TEHP]的检出率较高,而磷酸三(2-氯乙基)酯[tri(2-chloroethyl)phosphate,TCEP]、磷酸三(1,3-二氯异丙基)酯[tridichloropropyl phosphate,TDCPP]、磷酸三苯酯[triphenyl Phosphate,TPh P]在所有样品中均未检测到.Σ7OPEs含量范围为ND~534.89 ng·g~(-1),其中单体含量最高的是TnBP(ND~462.18 ng·g~(-1)).一个样品中检出了毒性较大的氯代磷酸酯-TCPP[trichloropropyl phosphate],含量为205.94 ng·g~(-1).成人和儿童通过皮肤接触摄入的Σ7OPEs日均暴露剂量(以bw计)最高,分别为0.14 ng·(kg·d)~(-1)和0.64 ng·(kg·d)~(-1),儿童的日均暴露剂量明显高于成人.成人及儿童的风险熵值(RQ)为10~(-7)~10~(-5).建议政府对塑胶跑道中OPEs使用量及添加种类进行管控,以更好地保护人群健康.
[Abstract]:The ultrasonic extraction-chromatographic purification-gas chromatography-mass spectrometry was used to analyze seven organophosphates in the plastic runway. The recovery rate of the method was 71.41 ~ 110.58, the correlation coefficient of the standard curve was r 0.99, and the quality control was good. The content and distribution of OPEs in plastic runway samples from 12 schools in Chengdu were collected and analyzed. The results showed that opes were detected in the samples of plastic runways in 2 / 3 schools. The detection rate of tri-n-butyl phosphate TnBP and triisooctyl phosphate (trise2-ethylhexylhexatephosphate TEHP) was higher. However, trioxy 2-chloroethyl) phosphate (TCEP), tridichloropropyl phosphate3-dichloroisopropyl phosphate (TCPP) and triphenyl phosphate (triphenyl) were not detected in all samples. The range of 危 7OPEs content was ND~534.89 ng / g ~ (-1) 7OPEs, and TnBP(ND~462.18 ng / g ~ (-1) was the highest. A toxic chlorophosphate TCPP [trichloropropyl phosphate] was found in one sample, and the content of TCPP was 205.94 ng / g ~ (-1). The average daily exposure dose of 危 7OPEs (bw) was the highest in adults and children (0.14 ng / kg / d ~ (-1) and 0.64 ng / kg / d ~ (-1) respectively. The average daily exposure dose in children was significantly higher than that in adults. The risk entropy (RQ) of adults and children was 10 ~ 7 ~ 10 ~ (-5). It is suggested that the government control the use and addition of OPEs in plastic runways in order to better protect the health of the population.
【作者单位】：成都信息工程大学资源环境学院;
【基金】：国家自然科学基金青年科学基金项目(21407014) 四川省科技支撑计划项目(2015GZ0240) 成都信息工程大学大气环境模拟与污染控制重点实验室开放课题项目(KFKT2016001) 2014年度校中青年学术带头人科研基金项目(J201415)
【分类号】：X50;X820.4

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