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题名: Release and Gas-Particle Partitioning Behaviors of Short-Chain Chlorinated Paraffins (SCCPs) During the Thermal Treatment of Polyvinyl Chloride Flooring
作者: Zhan, Faqiang1, 2;  Zhang, Haijun1;  Wang, Jing3, 4;  Xu, Jiazhi1, 2;  Yuan, Heping1;  Gao, Yuan1;  Su, Fan1;  Chen, Jiping1
刊名: ENVIRONMENTAL SCIENCE & TECHNOLOGY
发表日期: 2017-08-15
DOI: 10.1021/acs.est.7b01965
卷: 51, 期:16, 页:9005-9012
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology ;  Life Sciences & Biomedicine
类目[WOS]: Engineering, Environmental ;  Environmental Sciences
研究领域[WOS]: Engineering ;  Environmental Sciences & Ecology
英文摘要: Chlorinated paraffin (CP) mixture is a common additive in polyvinyl chloride (PVC) products as a plasticizer and flame retardant. During the PVC plastic life cycle, intentional or incidental thermal processes inevitably cause an abrupt release of short-chain CPs (SCCPs). In this study, the thermal processing of PVC plastics was simulated by heating PVC flooring at 100-200 degrees C in a chamber. The 1 h thermal treatment caused the release of 1.9-10.7% of the embedded SCCPs. A developed emission model indicated that SCCP release was mainly controlled by material gas partitioning at 100 degrees C. However, release control tended to be subjected to material-phase diffusion above 150 degrees C, especially for SCCP congeners with shorter carbon-chain lengths. A cascade impactor (NanoMoudi) was used to collect particles of different sizes and gas-phase SCCPs. The elevated temperature resulted in a higher partition of SCCPs from the gas-phase to particle phase. SCCPs were not strongly inclined to form aerosol particles by nucleation, and less present in the Aitken mode particles. Junge-Pankow adsorption model well fitted the partitioning of SCCPs between the gas-phase and accumulation mode particles. Inhalation exposure estimation indicated that PVC processing and recycling workers could face a considerably high risk for exposure to SCCPs.
关键词[WOS]: VOLATILE ORGANIC-COMPOUNDS ;  VEHICLE EMISSIONS ;  FLAME RETARDANTS ;  HUMAN EXPOSURE ;  ATMOSPHERE ;  AIR ;  CHINA ;  BIOACCUMULATION ;  ENVIRONMENT ;  MIGRATION
语种: 英语
WOS记录号: WOS:000407987400014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/149865
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Swiss Fed Inst Technol, Inst Environm Engn, CH-8093 Zurich, Switzerland
4.Empa, Swiss Fed Labs Mat Sci & Technol, CH-8600 Dubendorf, Switzerland

Recommended Citation:
Zhan, Faqiang,Zhang, Haijun,Wang, Jing,et al. Release and Gas-Particle Partitioning Behaviors of Short-Chain Chlorinated Paraffins (SCCPs) During the Thermal Treatment of Polyvinyl Chloride Flooring[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2017,51(16):9005-9012.
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