Pollution characteristics and health risk assessment of volatile organic compounds emitted from different plastic solid waste recycling workshops
Pollution characteristics and health risk assessment of volatile organic compounds emitted from different plastic solid waste recycling workshops
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不同塑料固废回收车间挥发性有机物污染特征及健康风险评估
DOI：
10.1016/j.envint.2015.01.004
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发表时间：
2015-04-01
影响因子：
11.8
通讯作者：
Zhang, Chaosheng
中科院分区：
文献类型：
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作者：
He, Zhigui;Li, Guiying;Zhang, Chaosheng
研究了处理不同类型塑料固体废弃物（PSW）的不同回收车间排放的挥发性有机物（VOCs）污染状况及其健康风险。共64个挥发性有机化合物，包括烷烃，烯烃，单芳烃，氧化挥发性有机化合物（OVOCs），氯化挥发性有机化合物（CIVOCs）和丙烯腈在熔融挤出过程中进行了鉴定和定量。总挥发性有机化合物（TVOC）浓度最高的是丙烯腈-丁二烯-苯乙烯（ABS）回收车间，其次是聚苯乙烯（PS）、聚丙烯（PP）、聚酰胺（PA）、聚氯乙烯（PVC）、聚乙烯（PE）和聚碳酸酯（PC）车间。单芳烃是ABS和PS回收车间排放的主要成分，而烷烃主要来自PE和PP回收过程，OVOCs来自PVC和PA回收车间。根据职业接触限值（OEL）评估，工人在ABS和PS回收车间遭受急性和慢性健康风险。同时，室内微环境中的VOCs主要来源于熔融挤出过程，TVOC浓度最高的是PS车间，而不是ABS回收车间。所有单个VOCs的非癌症危害指数（HI）为
The pollution profiles of volatile organic compounds (VOCs) emitted from different recycling workshops processing different types of plastic solid waste (PSW) and their health risks were investigated. A total of 64 VOCs including alkanes, alkenes, monoaromatics, oxygenated VOCs (OVOCs), chlorinated VOCs (CIVOCs) and acrylonitrile during the melting extrusion procedure were identified and quantified. The highest concentration of total VOCs (TVOC) occurred in the poly(acrylonitrile-butadiene styrene) (ABS) recycling workshop, followed by the polystyrene (PS), polypropylene (PP), polyamide (PA), polyvinyl chloride (PVC), polyethylene (PE) and polycarbonate (PC) workshops. Monoaromatics were found as the major component emitted from the ABS and PS recycling workshops, while alkanes were mainly emitted from the PE and PP recycling processes, and OVOCs from the PVC and PA recycling workshops. According to the occupational exposure limits' (OEL) assessment, the workers suffered acute and chronic health risks in the ABS and PS recycling workshops. Meanwhile, it was found that most VOCs in the indoor microenvironments were originated from the melting extrusion process, while the highest TVOC concentration was observed in the PS rather than in the ABS recycling workshop. Non-cancer hazard indices (HIs) of all individual VOCs were