期刊
JOURNAL OF ENVIRONMENTAL SCIENCES
卷 24, 期 3, 页码 558-563出版社
SCIENCE PRESS
DOI: 10.1016/S1001-0742(11)60801-2
关键词
decabromodiphenylethane; polybrominated diphenyl ethers; wastewater treatment plants; sewage sludge
资金
- Spanish Minister of Science and Innovation through the Unit of Characterization of the Atmospheric Pollution and Persistent Organic Pollutants, Environment Department, CIEMAT, Spain
- Center of Civil Engineering Research (CEDEX) [44-403-1-096]
The presence of an emerging brominated flame retardant, decabromodiphenylethane (DBDPE), has been confirmed in Spanish sewage sludge. Thirty one samples from different urban wastewater treatment plants (WWTPs) were analyzed for this brominated flame retardant. DBDPE was positively identified and quantified in all samples at lower concentrations (47.0 +/- 29.7 ng/g dry weight (dw); mean +/- SD) than those obtained for decabromodiphenyl ether (BDE-209) (290 +/- 236 ng/g dw; mean +/- SD) in a previous study. Influence of the WWTP characteristics in the pollutant levels was evaluated. No significant correlations were obtained between DBDPE concentrations and the population or sewage sludge production rate associated with the plants, neither wastewater treatment method. Sources of DBDPE in the sludge were also evaluated. Data indicate a common origin for DBDPE and BDE-209, which may be related to leaching processes during the use and disposal of consumer products containing these chemicals. Nevertheless, DBDPE contents are not influenced by industrial activities, which suggests that the infusion of DBDPE commercial mixture is not a source of this chemical into the environment, and indicates that the use of DBDPE in the Spanish industry is still low compared to deca-BDE.
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