PBDEs and Dechlorane Plus in the environment of Guiyu, Southeast China: A historical location for E-waste recycling (2004, 2014).
Chemosphere
; 199: 603-611, 2018 May.
Article
em En
| MEDLINE
| ID: mdl-29459350
ABSTRACT
Polybrominated diphenyl ethers (PBDEs, tri-to hepta-BDEs) and Dechlorane Plus (DP) in multiple samples (soil, sediment, road dust, and PM2.5 particles) in historical locations of our previous work in Guiyu (electronic-waste recycling town) in southeastern China were investigated in 2014. Ten years later, PBDEs and DP were detected in 100% of the samples. Æ©3-7PBDEs were still relatively great, ranging from 1.2â¯×â¯101 to 2.1â¯×â¯103â¯ng/g dry weight (dw) in soil, 2.1 to 3.2â¯×â¯103â¯ng/g dw in sediment, 1.0â¯×â¯101 to 1.1â¯×â¯104â¯ng/g dw in road dust, which were a little less than or close to those measured in 2004. However, Æ©3-7PBDEs in PM2.5 (5.0â¯×â¯102 to 8.4â¯×â¯102â¯pg/m3) were significantly lower in 2014. BDE-47, -99, -153, and -183 were predominant congeners, which were also predominant PBDEs reported in Guiyu (2006-2008). Greater proportions of lesser-brominated BDEs were predominant in PM2.5 than other samples. DP was detected in 100% of the samples collected with high levels. Total syn-DP and anti-DP concentrations were 3.8 to 2.1â¯×â¯103â¯ng/g dw in soil, 1.1â¯×â¯103 to 7.2â¯×â¯103â¯ng/g dw in sediment, 1.4â¯×â¯101 to 1.1â¯×â¯103â¯ng/g dw in road dust, and 1.8â¯×â¯102 and 1.7â¯×â¯102â¯pg/m3 in PM2.5. Most of the fractions of anti-DP (fanti) (70%-80%) were consistent among samples. The health risk assessment showed that hazard indexes (HIs) of PBDEs or DPs for child or adult were all lower than 0.16.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Compostos Policíclicos
/
Monitoramento Ambiental
/
Éteres Difenil Halogenados
/
Reciclagem
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Resíduo Eletrônico
/
Hidrocarbonetos Clorados
Tipo de estudo:
Risk_factors_studies
Limite:
Adult
/
Child
/
Humans
País/Região como assunto:
Asia
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article