【摘要】：利用氣質(zhì)聯(lián)用儀(GC-MS)定量分析了蘇州市25個(gè)道路灰塵樣品中4種有機(jī)磷阻燃劑(organophosphate flame retardants,OPFRs)的含量水平和分布特征,并估算了成人、兒童和環(huán)衛(wèi)工人灰塵攝入和呼吸暴露兩種不同途徑的日暴露量.結(jié)果表明,在灰塵樣品中4種OPFRs均有不同程度檢出,總OPFRs的含量范圍為ND~8 901.66 ng·g~(-1),中位值為1 039.21 ng·g~(-1).三(1-氯-2-丙基)磷酸酯[Tris(1-chloro-2-propyl)phosphate,TCPP]、磷酸三(丁氧基乙基)酯[Tris(2-butoxyethyl)phosphate,TBEP]、磷酸三(1,3-二氯-2-丙基)酯[Tris(1,3-dichloro-2-propyl)phosphate,TDCPP]和磷酸三(2-氯乙基)酯[Tris(2-chloroethyl)phosphate,TCEP]含量范圍分別為0~6 931.46、0~2 021.15、0~788.44和0~62.16 ng·g~(-1).在高暴露情景下,成人、兒童和環(huán)衛(wèi)工人通過(guò)攝入灰塵暴露ΣOPFRs的日均暴露量分別是125.68、915.78和6 314.16 pg·kg~(-1),兒童的暴露量比普通成人高6倍;而成人、兒童和環(huán)衛(wèi)工人通過(guò)呼吸途徑暴露ΣOPFRs的日均暴露量分別為3.07E-02、1.89E-02和1.54E-01 pg·kg~(-1).因此灰塵中OPFRs對(duì)于兒童和環(huán)衛(wèi)工人的潛在危害更大.
[Abstract]:The content and distribution characteristics of 4 organophosphorus flame retardants (organophosphate flame retardants,OPFRs) in 25 road dust samples in Suzhou were quantitatively analyzed by GC-MS, and the adults were estimated. Daily exposure of children and sanitation workers to dust intake and respiratory exposure. The results showed that four kinds of OPFRs were detected in the dust samples to varying degrees, the total OPFRs content was in the range of ND~8 901.66 ng g-1, and the median value was 1 039.21 ng g-1. 涓，

本文編號(hào)：2249094