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Emission of Unintentionally Produced Persistent Organic Pollutants from Some Industrial Processes in Northern Vietnam

Author:
Nguyen Thi, Hue, Nguyen Thi Thu, Thuy, Pham Hai, Long, Nguyen Thanh, Hai, Chu Viet, Hai, Chu Thi, Hue, Nghiem Xuan, Truong, Tung, Nguyen Hoang
Source:
Bulletin of environmental contamination and toxicology 2019 v.102 no.2 pp. 287-296
ISSN:
0007-4861
Subject:
bottom ash, bricks, emissions factor, flue gas, fly ash, hexachlorobenzene, industrial wastes, persistent organic pollutants, polychlorinated biphenyls, polychlorinated dibenzodioxins, polychlorinated dibenzofurans, steel, waste incineration, zinc, Vietnam
Abstract:
Concentrations of PCDD/Fs, dioxin-like PCBs (dl-PCBs), PeCB and HCB were determined in flue gas, fly ash and bottom ash samples collected from brick production, steel production, and zinc production plants, an industrial waste incinerator and a medical waste incinerator in northern Vietnam to understand the contamination levels, accumulation patterns and extent of emission. Total TEQs concentrations of PCDD/Fs and dl-PCBs in flue gas and ash samples from these industrial plants ranged from 0.304 to 50.55 pg/Nm³ and 1.43 to 440 pg/g, respectively. PeCB and HCB residues in flue gas samples ranged from 0.839 to 46.59 ng/Nm³ and 1.16 to 60.5 ng/Nm³, respectively. The emission factors of 4.8–740 ngTEQs/tonne for PCDD/Fs and dl-PCBs, 67.12–240.7 µg/ton for PeCB and 11.64–889.3 µg/ton for HCB were obtained in flue gas samples. This is among the first reports on the emission factor of PCDD/Fs, dl-PCBs, PeCB, HCB in brick production, zinc production and waste incineration in Vietnam.
Agid:
6313589