Quantitative fatty acid signature analysis (QFASA) in indoor dust: Implication for tracking indoor source accumulation of organic pollutant exposure
Indoor dust has been used as a proxy for estimating human indoor pollutant exposure risks, yet source identification remains challenging. This study tentatively investigated whether quantitative fatty acid signature analysis (QFASA) of dust, could be applied to indicate sources and their respective...
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doaj-890b850af9cc4873a9efd05636a162b92021-10-01T04:47:39ZengElsevierEnvironment International0160-41202021-12-01157106848Quantitative fatty acid signature analysis (QFASA) in indoor dust: Implication for tracking indoor source accumulation of organic pollutant exposureJinxin Xie0Lin Tao1Da Chen2Hongli Tan3Fengjiang Sun4Liu Yang5Yunjiang Yu6Yichao Huang7School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, ChinaSchool of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, ChinaSchool of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, ChinaSchool of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, ChinaSchool of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, ChinaSchool of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, ChinaState Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Minister of Environmental Protection, Guangzhou 510655, China; Corresponding authors at: Department of Toxicology, School of Public Health, Anhui Medical University, Hefei 230032, China (Y. Huang).School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, China; Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China; Corresponding authors at: Department of Toxicology, School of Public Health, Anhui Medical University, Hefei 230032, China (Y. Huang).Indoor dust has been used as a proxy for estimating human indoor pollutant exposure risks, yet source identification remains challenging. This study tentatively investigated whether quantitative fatty acid signature analysis (QFASA) of dust, could be applied to indicate sources and their respective contributions for a major class of indoor organic pollutants organophosphate flame retardants (OPFRs). We observed significant correlations between OPFR concentrations and lipid content (p < 0.05) in house dusts. Using 15 signature fatty acids (FAs) in various indoor sources and the QFASA model, we found that clothing (39.1% in Australia and 36.5% in China) was the predominant contributing vector of dust OPFR followed by cooking oil and pet hair. Among these sources, clothing materials were proposed to be important vectors introducing organic pollutants to the indoor environment. Our QFASA contribution estimation analyses allowed for accurate prediction of most OPFR concentrations in clothing, validating our findings that clothing materials may serve as important carrier for OPFRs in indoor migration. This is the first study attempting to identify sources of organic pollutants using QFASA in an indoor setting and will provide important insight into the transfer of organic pollutants in indoor environment.http://www.sciencedirect.com/science/article/pii/S0160412021004736Organophosphate flame retardantHouse dustFatty acidsQFASASource tracking |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jinxin Xie Lin Tao Da Chen Hongli Tan Fengjiang Sun Liu Yang Yunjiang Yu Yichao Huang |
spellingShingle |
Jinxin Xie Lin Tao Da Chen Hongli Tan Fengjiang Sun Liu Yang Yunjiang Yu Yichao Huang Quantitative fatty acid signature analysis (QFASA) in indoor dust: Implication for tracking indoor source accumulation of organic pollutant exposure Environment International Organophosphate flame retardant House dust Fatty acids QFASA Source tracking |
author_facet |
Jinxin Xie Lin Tao Da Chen Hongli Tan Fengjiang Sun Liu Yang Yunjiang Yu Yichao Huang |
author_sort |
Jinxin Xie |
title |
Quantitative fatty acid signature analysis (QFASA) in indoor dust: Implication for tracking indoor source accumulation of organic pollutant exposure |
title_short |
Quantitative fatty acid signature analysis (QFASA) in indoor dust: Implication for tracking indoor source accumulation of organic pollutant exposure |
title_full |
Quantitative fatty acid signature analysis (QFASA) in indoor dust: Implication for tracking indoor source accumulation of organic pollutant exposure |
title_fullStr |
Quantitative fatty acid signature analysis (QFASA) in indoor dust: Implication for tracking indoor source accumulation of organic pollutant exposure |
title_full_unstemmed |
Quantitative fatty acid signature analysis (QFASA) in indoor dust: Implication for tracking indoor source accumulation of organic pollutant exposure |
title_sort |
quantitative fatty acid signature analysis (qfasa) in indoor dust: implication for tracking indoor source accumulation of organic pollutant exposure |
publisher |
Elsevier |
series |
Environment International |
issn |
0160-4120 |
publishDate |
2021-12-01 |
description |
Indoor dust has been used as a proxy for estimating human indoor pollutant exposure risks, yet source identification remains challenging. This study tentatively investigated whether quantitative fatty acid signature analysis (QFASA) of dust, could be applied to indicate sources and their respective contributions for a major class of indoor organic pollutants organophosphate flame retardants (OPFRs). We observed significant correlations between OPFR concentrations and lipid content (p < 0.05) in house dusts. Using 15 signature fatty acids (FAs) in various indoor sources and the QFASA model, we found that clothing (39.1% in Australia and 36.5% in China) was the predominant contributing vector of dust OPFR followed by cooking oil and pet hair. Among these sources, clothing materials were proposed to be important vectors introducing organic pollutants to the indoor environment. Our QFASA contribution estimation analyses allowed for accurate prediction of most OPFR concentrations in clothing, validating our findings that clothing materials may serve as important carrier for OPFRs in indoor migration. This is the first study attempting to identify sources of organic pollutants using QFASA in an indoor setting and will provide important insight into the transfer of organic pollutants in indoor environment. |
topic |
Organophosphate flame retardant House dust Fatty acids QFASA Source tracking |
url |
http://www.sciencedirect.com/science/article/pii/S0160412021004736 |
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