Novel brominated flame retardants in house dust from Shanghai, China: levels, temporal variation, and human exposure

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Novel brominated flame retardants in house dust from Shanghai, China : levels, temporal variation, and human exposure

Niu, Dong (författare): Key Laboratory of Yangtze River Water Environment, College of Environmental Science and Engineering, Tongji University, Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China

Qiu, Yanling (författare): Key Laboratory of Yangtze River Water Environment, College of Environmental Science and Engineering, Tongji University, Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China

Du, Xinyu (författare): Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China

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Li, Li (författare): Key Laboratory of Yangtze River Water Environment, College of Environmental Science and Engineering, Tongji University, Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China

Zhou, Yihui (författare): Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China

Yin, Daqiang (författare): Key Laboratory of Yangtze River Water Environment, College of Environmental Science and Engineering, Tongji University, Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China

Lin, Zhifen (författare): Shanghai Key Laboratory of Chemical Assessment and Sustainability, College of Environmental Science and Engineering, Tongji University, Shanghai, China

Chen, Ling (författare): Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China

Zhu, Zhiliang (författare): Key Laboratory of Yangtze River Water Environment, College of Environmental Science and Engineering, Tongji University, Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China

Zhao, Jianfu (författare): Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China

Bergman, Åke, 1950- (författare): Stockholms universitet,Örebro universitet,Institutionen för naturvetenskap och teknik,Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China; Department of Environmental Science and Analytical Chemistry (ACES), Stockholm University, Stockholm, Sweden,MTM Research Centre,Institutionen för miljövetenskap och analytisk kemi,Shanghai Institute of Pollution Control and Ecological Security, China; Örebro University, Sweden

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2019-01-29
2019
Engelska.
Ingår i: Environmental Sciences Europe. - : Springer London. - 2190-4707 .- 2190-4715. ; 31:1

Relaterad länk:: https://doi.org/10.1...; visa fler...; https://enveurope.sp...; https://urn.kb.se/re...; https://doi.org/10.1...; https://urn.kb.se/re...; visa färre...

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Background: Novel brominated flame retardants (NBFRs) have been increasingly used as alternatives to legacy BFRs (e.g., PBDEs and HBCDs) in consumer products, but are liable to emigrate and contaminate indoor dust. In this study, a total of 154 house dust samples including floor dust (FD) and elevated surface dust (ESD) were collected in the biggest metropolitan area (Shanghai) of East China in 2016. Limited information about temporal variation of NBFRs indoors is available, while the period of sampling is influential in human exposure estimates. Levels, temporal variation, and human exposure of seven target NBFRs such as decabromodiphenylethane (DBDPE), 1,2-bis(2,4,6-tribromophenoxy) ethane (BTBPE), 2-ethylhexyl 2,3,4,5-tetrabromobenzoate (EHTBB), and bis(2-ethylhexyl) tetrabromophthalate (BEHTEBP) were investigated in indoor house dust.Results: Concentrations of Sigma(7)NBFRs ranged from 19.11 to 3099ng/g with a geomean of 295.1ng/g in FD, and from 34.74 to 404.6ng/g with a geomean of 117.9ng/g in ESD. The geomeans of DBDPE were 219.6ng/g in FD and 76.89ng/g in ESD, accounting for 90.5% and 80.5% of Sigma(7)NBFRs. Levels of EHTBB, BTBPE, and DBDPE in FD exceeded significantly those in ESD. The temporal variation in Sigma(7)NBFRs in FD was ranked as summer>winter>autumn>spring. The daily exposure doses (DEDs) of Sigma(7)NBFRs via dust ingestion decreased as: infants>toddlers>children>teenagers>adults. Infants showed the highest DED in FD, 9.1ng/kg bw/day.Conclusions: DBDPE clearly dominated the NBFRs in both FD and ESD, but the concentrations of DBDPE in this study were generally moderate compared with the other international studies. Dust ingestion was the major pathway of human exposure to NBFRs indoors. About eightfold difference in exposure estimates between infants and adults showed that infants faced elevated exposure risks in FD. This study highlighted the necessity to estimate human exposure of NBFRs for different age groups using FD and ESD, respectively.

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Av författaren/redakt...: Niu, Dong; Qiu, Yanling; Du, Xinyu; Li, Li; Zhou, Yihui; Yin, Daqiang; visa fler...; Lin, Zhifen; Chen, Ling; Zhu, Zhiliang; Zhao, Jianfu; Bergman, Åke, 19 ...; visa färre...

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Novel brominated flame retardants in house dust from Shanghai, China : levels, temporal variation, and human exposure

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