کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6312387 1618967 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
China action of “Cleanup Plan for Polychlorinated Biphenyls Burial Sites”: Emissions during excavation and thermal desorption of a capacitor-burial site
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
China action of “Cleanup Plan for Polychlorinated Biphenyls Burial Sites”: Emissions during excavation and thermal desorption of a capacitor-burial site
چکیده انگلیسی
Scarce data are available so far on emissions in a given scenario for excavation and thermal desorption, a common practice, of soils contaminated with polychlorinated biphenyls (PCBs). As part of China action of “Cleanup Plan for PCBs Burial Sites”, this study roughly estimated PCBs emissions in the scenario for a capacitor-burial site. The concentrations of total PCBs (22 congeners) in soils were in the range of 2.1-16,000 μg/g with a mean of 2300 μg/g, among the same order of magnitude as the highest values obtained in various PCBs-contaminated sites. Only six congeners belonging to Di-, Tri-, and Tetra-CBs were observed above limits of detection in air samples in the scenario, partially which can be estimated by the USEPA air emission model. Comparing concentrations and composition profiles of PCBs in the soil and air samples further indicated a leaked source of commercial PCBs formulations of trichlorobiphenyl (China PCB no. 1). The measures taken if any to mitigate the volatilization and movement of PCBs and to minimize worker exposure were discussed for improvements of the excavation practice.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecotoxicology and Environmental Safety - Volume 96, 1 October 2013, Pages 231-237
نویسندگان
, , , , , , , ,