Brominated and phosphate flame retardants from interior and surface dust of personal computers: insights into sources for human dermal exposure

被引:13
作者
Yu, Lehuan [1 ,2 ]
Ru, Shuling [3 ]
Zheng, Xiaobo [2 ,3 ]
Chen, Shejun [4 ,5 ]
Guo, Huiying [2 ]
Gao, Guijuan [1 ]
Zeng, Yuan [4 ,5 ]
Tang, Yijie [1 ]
Mai, Bixian [2 ]
机构
[1] Guangdong Univ Educ, Guangdong Dev Ctr Appl Ecol & Ecol Engn Univ, Sch Biol & Food Engn, Guangzhou 510303, Peoples R China
[2] Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Prov Key Lab Environm Protect & Resourc, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China
[3] South China Agr Univ, Coll Resources & Environm, Guangzhou 510642, Peoples R China
[4] South China Normal Univ, Guangdong Prov Key Lab Chem Pollut & Environm Saf, Sch Environm, Guangzhou 510006, Peoples R China
[5] South China Normal Univ, MOE Key Lab Theoret Chem Environm, Guangzhou 510006, Peoples R China
基金
中国国家自然科学基金;
关键词
Personal computer dust; Surface wipe; Flame retardants; Dermal exposure; INDOOR DUST; HAND WIPES; MIGRATION PATHWAYS; CONSUMER PRODUCTS; DIPHENYL ETHERS; DECHLORANE PLUS; TEST CHAMBER; ORGANOPHOSPHATE; AIR; MICROENVIRONMENTS;
D O I
10.1007/s11356-020-11132-0
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
It remains unclear whether internal or external sources play the more significant role in flame retardant (FR) contamination of surface dust from personal computers (PCs), which may lead to bias on dermal exposure assessment of FRs. In the present study, the occurrence and profiles of several brominated and phosphate FRs were measured in the interior dust, and the upper surface (keyboard) and bottom surface (bottom cover) wipes of PCs. BDE 209 (639 ng/g), decabromodiphenyl ethane (DBDPE, 885 ng/g), and triphenyl phosphate (TPHP, 1880 ng/g) were the most abundant chemicals in interior PC dust, while tris(2-chloroisopropyl) phosphate (TCIPP), TPHP, and DBDPE were dominant on both surfaces of PCs. No significant correlation between interior dust and both PC surfaces was observed for concentrations of most FRs except BDE 183. Different sources of FRs for interior and surface dust of PCs were further revealed by principal component analysis (PCA). FRs from external sources, rather than emission from inner PC components, are likely the main contributor for FR profiles on PC surfaces. Exposure assessment results demonstrated a minor contribution from PC dermal contact, compared with hand-to-mouth uptake, to total exposure. The applicability of surface wipes to assess dermal exposure to FR-treated products needs to be further investigated.
引用
收藏
页码:12566 / 12575
页数:10
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