naa a22 4500 510749038 CHVBK 20180411083057.0 cr unu---uuuuu 180411e20130101xx s 000 0 eng 10.1007/s11270-012-1398-8 doi (NATIONALLICENCE)springer-10.1007/s11270-012-1398-8 Investigation of Polybrominated Diphenyl Ethers in Wastewater Treatment Plants Along the U.S.and Mexico Border: a Trans-boundary Study [Elektronische Daten] [Beatriz Rocha-Gutierrez, Wen-Yee Lee] A comprehensive investigation of polybromodiphenyl ethers (PBDEs) in wastewater was conducted in the second largest international metroplex area along the U.S. and Mexico (MX) border. Concentrations of PBDEs in wastewater and sludge were measured in four wastewater treatment plants (WWTPs) in El Paso, Texas and two WWTPs in Cd. Juarez, Chihuahua, MX. A green approach in sample preparation technique, called stir bar sorptive extraction (SBSE) coupled with thermal desorption and gas chromatography and mass spectrometry, was used which requires minimum amount of organic solvents and has good sensitivity at nanogram-per-liter levels for wastewater samples and nanograms per gram for waste sludge solids. Concentrations of PBDEs ranged from 30.2 to 342ng L−1 in wastewater influents, from not detected to 209ng L−1 in effluents, and from not detected to 1,303ng g−1 in sludge. Among 27 PBDEs studied, BDE-47, BDE-99, and BDE-100 were the most commonly detected congeners in all samples. Further evaluation showed that secondary and tertiary treatments are highly effective at removing PBDEs from wastewater with percent removals ranging from 84% to 100%, while advanced primary treatment only removed 41-73% of PBDEs. As a complement, the ambient air temperature change on PBDEs concentrations was evaluated finding that this factor did not have an influence on the PBDEs concentrations in WWTPs. The incomplete removal of PBDEs in WWTPs implicates a potential impact on the environmental and public health as a result of the continuous release of PBDEs from the WWTPs to the Rio Grande River and irrigation canals. Springer Science+Business Media Dordrecht, 2012 SBSE nationallicence GC-MS nationallicence US/Mexico border nationallicence PBDEs nationallicence Wastewater treatment plants nationallicence Environmental endocrine disruptors nationallicence Rocha-Gutierrez Beatriz Environmental Science and Engineering PhD Program, University of Texas at El Paso, 500 W. University Ave, 79968, El Paso, TX, USA aut Lee Wen-Yee Environmental Science and Engineering PhD Program, University of Texas at El Paso, 500 W. University Ave, 79968, El Paso, TX, USA aut Water, Air, & Soil Pollution Springer Netherlands 224/1(2013-01-01), 1-13 0049-6979 224:1<1 2013 224 11270 https://doi.org/10.1007/s11270-012-1398-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-012-1398-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rocha-Gutierrez Beatriz Environmental Science and Engineering PhD Program, University of Texas at El Paso, 500 W. University Ave, 79968, El Paso, TX, USA aut NATIONALLICENCE 700 1- Lee Wen-Yee Environmental Science and Engineering PhD Program, University of Texas at El Paso, 500 W. University Ave, 79968, El Paso, TX, USA aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/1(2013-01-01), 1-13 0049-6979 224:1<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer