scholarly journals Occurrence of legacy and alternative plasticizers in indoor dust from various EU countries and implications for human exposure via dust ingestion and dermal absorption

2019 ◽  
Vol 171 ◽  
pp. 204-212 ◽  
Author(s):  
Christina Christia ◽  
Giulia Poma ◽  
Stuart Harrad ◽  
Cynthia A. de Wit ◽  
Ylva Sjostrom ◽  
...  
2015 ◽  
Vol 83 ◽  
pp. 183-191 ◽  
Author(s):  
Wei Wang ◽  
Khalid O. Abualnaja ◽  
Alexandros G. Asimakopoulos ◽  
Adrian Covaci ◽  
Bondi Gevao ◽  
...  

Author(s):  
Rui-Xin Qin ◽  
Bin Tang ◽  
Xi Zhuang ◽  
Wei-Xiang Lei ◽  
Mei-Huan Wang ◽  
...  

Indoor dust ingestion is one of the main pathways for human exposure to organophosphate flame retardants (PFRs). The urinary concentrations of diesters (DAPs) are usually used as biomarkers to assess...


2018 ◽  
Vol 25 (18) ◽  
pp. 18049-18058 ◽  
Author(s):  
Dong Niu ◽  
Yanling Qiu ◽  
Li Li ◽  
Yihui Zhou ◽  
Xinyu Du ◽  
...  

Abstract House dust is the main source of human exposure to flame retardants by ingestion. This study investigated the occurrence of polybrominated diphenyl ethers (PBDEs) in indoor dust from 22 houses in Shanghai, China. House dust was separately collected from the floor and elevated furnishings surface (mostly between 0.5 and 2 m height) for comparison. The concentrations of ∑22 PBDEs ranged from 19.4 to 3280 ng/g (with a geometric mean of 203 ng/g) and from 55.1 to 792 ng/g (with a geometric mean of 166 ng/g) in floor dust (FD) and elevated surface dust (ESD), respectively. BDE-209 was the predominant congener, accounting for about 73.1% of total PBDE burdens. In terms of congener profiles, the comparison of FD and ESD revealed no significant differences except for the ratio of BDE-47/BDE-99. ESD samples displayed a ratio of BDE-47/BDE-99 very similar to commercial penta-BDE products DE-71 while the ratio in FD was exceptionally higher. Significant correlation was found between concentrations of commercial penta-BDE compositions in FD and ESD (p < 0.05). Except for some occasional values, PBDE levels in house dust exhibited temporal stability. Human exposure to PBDEs via dust ingestion was estimated. The highest daily intake of PBDEs was for toddlers by using 95th percentile concentrations of PBDEs via high dust ingestion in FD (23.07 ng/kg bw/day). About 20-fold difference in exposure estimates between toddlers and adults supports that toddlers are facing greater risk from indoor floor dust. Expectedly, this study highlighted the point that residents in Shanghai were exposed to low doses of PBDEs in house dust.


2010 ◽  
Vol 18 (NA) ◽  
pp. 239-254 ◽  
Author(s):  
Adegbenro P. Daso ◽  
Olalekan S. Fatoki ◽  
James P. Odendaal ◽  
Jonathan O. Okonkwo

The presence of brominated flame retardants (BFRs) in various environmental matrices, including humans, has been well documented. Increasing levels of these emerging contaminants in various environmental compartments suggest the wide application of these chemicals in products of everyday use. The release of BFRs from treated products is generally believed to be the major source of these contaminants into the environment, particularly in indoor environments. The sources and pathways through which BFRs enter the human system are evaluated in this paper. Human exposure via consumption of contaminated food and water, inhalation and ingestion of dust, as well as dermal absorption, are important pathways for these contaminants. Consumption of fatty foods especially fish, meat, dairy products as well as human milk constitute important routes for human exposure to these contaminants. Although brominated diphenyl ether (BDE) 209 has been found to be less bioaccumulative due to its high molecular weight, its dominance in indoor dust samples could be responsible for its detection in most human tissues investigated. BDE 47 is the most dominant polybrominated diphenyl ether (PBDE) congener found in human tissues. Regional differences in BFR levels in various environmental and biological matrices reflect their consumption patterns with higher levels mostly reported in the North American environments than in other regions of the world.


2019 ◽  
Vol 652 ◽  
pp. 1187-1194 ◽  
Author(s):  
Qingqing Zhu ◽  
Jiabao Jia ◽  
Kegang Zhang ◽  
He Zhang ◽  
Chunyang Liao ◽  
...  

Chemosphere ◽  
2012 ◽  
Vol 88 (11) ◽  
pp. 1276-1282 ◽  
Author(s):  
Nadeem Ali ◽  
Alin C. Dirtu ◽  
Nele Van den Eede ◽  
Emma Goosey ◽  
Stuart Harrad ◽  
...  

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