室内空气有机磷酸酯的聚二甲基硅氧烷(PDMS)、低密度聚乙烯(LDPE)和聚氨酯海绵(PUF)被动采样对比  

Study on passive sampling of indoor air organophosphate esters using PDMS,LDPE and PUF

作　　者：吴聿斌 邹越 周新策 张子豪 王琰 WU Yubin;ZOU Yue;ZHOU Xince;ZHANG Zihao;WANG Yan(School of Environmental Science and Technology,Dalian University of Technology,Dalian,116024,China)

机构地区：[1]大连理工大学环境学院,大连116024

出　　处：《环境化学》2023年第12期4127-4134,共8页Environmental Chemistry

基　　金：国家自然科学基金(21976023);中央高校基本科研业务费(DUT22JC23)资助.

摘　　要：室内有机磷酸酯(OPEs)阻燃剂的污染日益严重,但目前OPEs室内被动采样方法和采样速率研究缺乏.本研究通过室内空气被动采样动力学实验,对比了低密度聚乙烯(LDPE)、聚二甲基硅氧烷(PDMS)、硅胶手环(WB)和聚氨酯海绵(PUF)的4种被动采样方法对室内空气9种典型OPEs的气态采样速率和采样效果.4种被动采样对OPEs的平均采样速率为:WB((5.4±4.3)m^(3)·d^(−1)·dm^(−2))>PDMS((2.0±1.6)m^(3)·d^(−1)·dm^(−2))>PUF((1.5±1.1)m^(3)·d^(−1)·dm^(−2))≈LDPE((1.3±1.5)m^(3)·d^(−1)·dm^(−2)).4种被动采样OPEs组成与主动采样气态和颗粒态OPEs的组成均存在明显差异,说明被动采样受空气中细颗粒物的影响.LDPE的采样速率最小,但达到平衡时间较快,约20 d,可用于短期采样;而WB,PDMS,PUF达到平衡时间较长,更适合中、长期采样.The indoor pollution of organophosphate esters(OPEs)flame retardants is becoming more and more serious.However,there is a lack of research on the passive sampling methods and rates of indoor OPEs.In this study,a sampling dynamics experiment was conducted for four passive sampling methods using low density polyethylene(LDPE),polydimethylsiloxane(PDMS),silicone wristband(WB)and polyurethane foam(PUF)to investigate their sampling rates and effects of nine typical OPEs in indoor air.The average passive sampling rates of OPEs for these four sampling methods were in the order:WB((5.4±4.3)m^(3)·d^(−1)·dm^(−2))>PDMS((2.0±1.6)m^(3)·d^(−1)·dm^(−2))>PUF((1.5±1.1)m^(3)·d^(−1)·dm^(−2))≈LDPE((1.3±1.5)m^(3)·d^(−1)·dm^(−2)).The compositions of OPEs for the four sampling methods were significantly different from that of both the gaseous and particle OPEs using active air sampling,which suggested that passive sampling may be influenced by the fine particles in the air.LDPE has the lowest sampling rate but fastest equilibrium time,i.e.,~20 d,thus can be used for a short-term sampling.WB,PDMS and PUF have relatively long equilibrium time,thus are suitable for a medium-to long-term sampling.

关 键 词：有机磷酸酯 被动采样 室内空气 采样速率 

分 类 号：X831[环境科学与工程—环境工程]