کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4410399 1307542 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Estimation and characterization of PCDD/Fs, dl-PCBs, PCNs, HxCBz and PeCBz emissions from magnesium metallurgy facilities in China
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Estimation and characterization of PCDD/Fs, dl-PCBs, PCNs, HxCBz and PeCBz emissions from magnesium metallurgy facilities in China
چکیده انگلیسی

Magnesium production is considered to be one potential source of unintentional persistent organic pollutants (unintentional POPs). However, studies on the emissions of unintentional POPs from magnesium metallurgy are still lacking. Emissions of unintentional POPs, such as polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs), dioxin-like polychlorinated biphenyls (dl-PCBs), polychlorinated naphthalenes (PCNs), hexachlorobenzene (HxCBz) and pentachlorobenzene (PeCBz) are covered under the Stockholm Convention. In this study, these emissions were investigated through a magnesium smelting process. Stack gas and fly ash samples from a typical magnesium plant in China were collected and analyzed to estimate the emissions of unintentional POPs from magnesium metallurgy. Emissions factors of 412 ng TEQ t−1 for PCDD/Fs, 18.6 ng TEQ t−1 for dl-PCBs, 3329 μg t−1 for PCNs, 820 μg t−1 for HxCBz, and 1326 μg t−1 for PeCBz were obtained in 2009. Annual emissions from magnesium metallurgy in China were estimated to be 0.46 g WHO-TEQ for PCDD/Fs and dl-PCBs, 1651 g for PCNs, 403 g for HxCBz and 653 g for PeCBz, respectively.


► This paper presents measurements of unintentional POPs emitted from the magnesium metallurgy in China.
► Profiles of unintentional POPs emissions from the magnesium smelting process were presented and discussed.
► The emission factors of unintentional POPs were derived and used for development of POPs inventory.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 85, Issue 11, December 2011, Pages 1707–1712
نویسندگان
, , , , , , , ,