Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polybrominated diphenyl ethers in indoor dusts from university dormitories and printing shops in Xinxiang, China
Abstract Polybrominated diphenyl ethers (PBDEs) were investigated in indoor dusts from university dormitories and printing shops in Xinxiang, China. The mean concentrations of ∑13PBDEs were 105 ± 64.2 ng/g dry weight (dw), 31.7 ± 26.4 ng/g dw and 695 ± 379 ng/g dw in dusts from male dormitory, female dormitory and printing shop, respectively. Notably, significantly higher PBDE concentrations were found in printing shop than in university dormitory. BDE-153 (84.5 ± 165 ng/g dw), BDE-190 (76.1 ± 179 ng/g dw) and BDE-138 (24.2 ± 29.7 ng/g dw) displayed the highest levels in the 29 indoor dust samples. BDE-138, -153, -190 and -71 showed higher proportion in indoor dusts from university dormitories and printing shops. More debromination process of PBDEs occurred in dust from university dormitory, whereas PBDEs in printing shop were more likely to come directly from external electronic devices. Significantly positive correlations were revealed between the PBDE levels and the quantity of electronic equipment in dust, indicating that electronic devices had significant influence on PBDE contamination in indoor environment. Generally, PBDE concentrations in the present study were lower than the levels in indoor dusts from other studies worldwide. The estimated daily intake values of ∑13PBDEs displayed printing shop (80.4 ng/kg body weight (bw)/day) > male dormitory (11.3 ng/kg bw/day) > female dormitory (3.97 ng/kg bw/day), which were generally higher than other researches, but well below the EPA reference doses.
Graphical abstract Display Omitted
Highlights PBDEs were firstly analyzed in indoor dust from printing shops. PBDE levels in printing shops were significantly higher than in university dormitories. PBDEs in dust were strongly correlated with the quantity of computers and printers. EDIs of PBDEs via dust ingestion were far below the RfD values of EPA.
Polybrominated diphenyl ethers in indoor dusts from university dormitories and printing shops in Xinxiang, China
Abstract Polybrominated diphenyl ethers (PBDEs) were investigated in indoor dusts from university dormitories and printing shops in Xinxiang, China. The mean concentrations of ∑13PBDEs were 105 ± 64.2 ng/g dry weight (dw), 31.7 ± 26.4 ng/g dw and 695 ± 379 ng/g dw in dusts from male dormitory, female dormitory and printing shop, respectively. Notably, significantly higher PBDE concentrations were found in printing shop than in university dormitory. BDE-153 (84.5 ± 165 ng/g dw), BDE-190 (76.1 ± 179 ng/g dw) and BDE-138 (24.2 ± 29.7 ng/g dw) displayed the highest levels in the 29 indoor dust samples. BDE-138, -153, -190 and -71 showed higher proportion in indoor dusts from university dormitories and printing shops. More debromination process of PBDEs occurred in dust from university dormitory, whereas PBDEs in printing shop were more likely to come directly from external electronic devices. Significantly positive correlations were revealed between the PBDE levels and the quantity of electronic equipment in dust, indicating that electronic devices had significant influence on PBDE contamination in indoor environment. Generally, PBDE concentrations in the present study were lower than the levels in indoor dusts from other studies worldwide. The estimated daily intake values of ∑13PBDEs displayed printing shop (80.4 ng/kg body weight (bw)/day) > male dormitory (11.3 ng/kg bw/day) > female dormitory (3.97 ng/kg bw/day), which were generally higher than other researches, but well below the EPA reference doses.
Graphical abstract Display Omitted
Highlights PBDEs were firstly analyzed in indoor dust from printing shops. PBDE levels in printing shops were significantly higher than in university dormitories. PBDEs in dust were strongly correlated with the quantity of computers and printers. EDIs of PBDEs via dust ingestion were far below the RfD values of EPA.
Polybrominated diphenyl ethers in indoor dusts from university dormitories and printing shops in Xinxiang, China
Wu, Zhineng (Autor:in) / Liu, Yuanyuan (Autor:in) / Lyu, Honghong (Autor:in) / Chen, Yuming (Autor:in) / Han, Tao (Autor:in) / Zhang, Yadi (Autor:in) / Xu, Pengwei (Autor:in) / Song, Jie (Autor:in) / Wu, Weidong (Autor:in)
Building and Environment ; 187
27.10.2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
PBDEs , Dust , University dormitory , Printing shop , Daily intake , polybrominated diphenyl ethers , BFRs , brominated flame retardants , POPs , persistent organic pollutants , IDL , Instrumental detection limit , MDL , method detection limit , EDI , estimated daily intake , bw , body weight , RfD , oral reference dose , USEPA , United States Environmental Protection Agency , dw , dry weight
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