Assessment of polychlorinated dibenzo-p-dioxins and dibenzofurans contribution from different media to surrounding duck farms

Lee, Wen‐Jhy; Shih, Shun-I; Li, Hsing-Wang; Lin, Long-Full; Yu, K. W.; Lu, Kueiwan; Wang, Lin‐Chi; Chang-Chien, Guo-Ping; Fang, Kenneth; Lin, Mark

doi:10.1016/j.jhazmat.2008.07.079

Cited by 25 publications

(21 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In an effort to reduce PCDD/F emissions from Waelz process, Mager et al (2003) switched from acid mode to base mode operation by changing the flux from SiO 2 to lime and PCDD/F emission factors through stack flue gases reduced from 17-436 µg I-TEQ ton-product -1 to 0.096-0.18 µg I-TEQ ton-product -1 . (Lee et al, 2009). After consequent APCD improvements in this particular Waelz plant, the PCDD/F emission factors through stack flue gases decreased from 560 µg I-TEQ ton-EAF dust -1 to 42.5 µg I-TEQ ton-EAF dust -1 by equipping ACI (Li et al, 2007b).…”

Section: Pcdd/f Emissions From Eaf Dust Treatment Plantsmentioning

confidence: 94%

An Overview of PCDD/F Inventories and Emission Factors from Stationary and Mobile Sources: What We Know and What is Missing

Cheruiyot

Lee

Yan

et al. 2016

Aerosol Air Qual. Res.

Self Cite

View full text Add to dashboard Cite

This overview attempts to outline what we currently know about the PCDD/F emission inventories and the source categories therein. Besides the best available control techniques, suggestions are offered on how to reduce the PCDD/F emission factors and emission quantity of some important PCDD/F emission sources. The PCDD/F combustion sources can be classified as either stationary or mobile or minimally/uncontrolled combustion sources. The major stationary sources of PCDD/Fs are metal production processes, waste incineration, heat and power plants, and fly ash treatment plant. Crematories, vehicles, residential boilers and stoves are of key concern due to their proximity to residential areas and their relatively lower lying stacks and exhaust gases, which may result in great impact to their surrounding environment.Moreover, we offered our perspectives on how to improve the quality and representative of the PCDD/F emission factors to attain PCDD/F inventories which correspond more to reality. These points of view include: (1) PCDD/F contributions during start-up procedures of MSWIs should be considered, (2) the sampling times of stack flue gases for EAFs and secondary metal smelters should correspond to whole smelting process stages, (3) longer flue gas sampling time should be executed for power plants, (4) direct exhaust samplings from tailpipes for mobile sources, (5) development of an open burn testing facility that can reflect the real open burning conditions, and (6) long-term sampling techniques like AMESA are suggested to used exclusively for the most contributed PCDD/F stationary sources.

show abstract

Section: Pcdd/f Emissions From Eaf Dust Treatment Plantsmentioning

confidence: 94%

An Overview of PCDD/F Inventories and Emission Factors from Stationary and Mobile Sources: What We Know and What is Missing

Cheruiyot

Lee

Yan

et al. 2016

Aerosol Air Qual. Res.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Shih et al (2006) measured the atmospheric dry deposition flux of total PCDD/Fs in a rural area of Taiwan using the smooth plate with a sharp leading edge, and the averaged flux of total PCDD/Fs was 50 pg/m 2 -day. The impact of dry/wet PCDD/F depositions from the ambient air and the electric arc furnace dust treatment plant in Taiwan has been presented (Lee et al, 2009). The estimated dry deposition flux of PCDD/Fs was approximately 4 times the wet deposition.…”

Section: Polychlorinatedmentioning

confidence: 99%

Atmospheric Dry Deposition of Polychlorinated Dibenzo-p-Dioxins/Dibenzofurans (PCDD/Fs) and Polychlorinated Biphenyls (PCBs) in Southern Taiwan

Lin

et al. 2012

Aerosol Air Qual. Res.

Self Cite

View full text Add to dashboard Cite

Dry deposition is one of the major routes by which air pollutants enter the ecosystem, and thus this study investigated the dry deposition characteristics of polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs) and biphenyls (PCBs) in the ambient air of industrial, urban, and rural areas in southern Taiwan from November 2010 to May 2011. Average dry deposition fluxes of total PCDD/Fs and PCBs in the ambient air of four sites were 157-544 pg/m 2 -day (8.30-27.5 pg I-TEQ/m 2 -day) and 289-1010 pg/m 2 -day (0.540-1.94 pg WHO-TEQ/m 2 -day), respectively. The results showed that particle phase depositions dominated the dry deposition processes for the removal of PCDD/Fs and PCBs from the atmosphere, and the atmospheric deposition flux in the cold season tended to be higher than that during the warm season. The dry deposition velocity of individual PCDD/Fs (0.031-0.546 cm/s) increased as the number of chlorinated substitutes increased, which were similar to those measured or predicted in other Asian countries. Similar patterns of dry deposition velocities were observed for individual PCBs (0.069-3.38 cm/s), due to the fact that low chlorinated PCBs are predominant in gas phase and have lower deposition velocities.

show abstract

“…Once released into various environmental compartments such as air, water, soil, sediment and food, they can be dispersed on global scale and pose serious health and environmental risks [3,4]. Thus, issues associated with unintentional POP formation, emission, transport, abatement, and environmental risk assessment have been intensively investigated [5][6][7][8][9]. Over the past decade, many sources of PCDD/Fs have been documented in national inventories, as required of signatories to the Stockholm Convention on Persistent Organic Pollutants [10].…”

Section: Introductionmentioning

confidence: 99%

A preliminary investigation of unintentional POP emissions from thermal wire reclamation at industrial scrap metal recycling parks in China

Nie

Zheng

Liu

et al. 2012

Journal of Hazardous Materials

View full text Add to dashboard Cite

a b s t r a c tThermal wire reclamation is considered to be a potential source of unintentional persistent organic pollutants (unintentional POPs). In this study, unintentional POP concentrations, including PCDD/Fs, dioxin like PCBs (dl-PCBs), polychlorinated naphthalenes (PCNs), hexachlorobenzene (HxCBz) and pentachlorobenzene (PeCBz), were quantified in flue gas and residual ash emissions from thermal wire reclamation at scrap metal dismantling parks in Zhejiang Province, China. The total average TEQ emissions of the investigated unintentional POPs from flue gas and residual ash in two typical scrap metal recycling plants ranged from 13.1 to 48.3 ng TEQ N m −3 and 0.08 to 2.8 ng TEQ g −1 , respectively. The dominant PCDD/F congeners were OCDD, 1,2,3,4,6,7,8-HpCDD, OCDF and 1,2,3,4,6,7,8-HpCDF, while PCB-126 and PCB-169 were the main contributors to the toxicity of the dl-PCBs. There were clear differences in the distribution dl-PCBs congeners contributing to the TEQ concentrations in the flue gas samples from the two plants. The PCN TEQs were dominated by PCN-66/67 and PCN-73. Although thermal wire reclamation in incinerators has been proposed as an alternative to open burning, there are still considerable environmental risks associated with regulated incinerators, and unintentional POP emissions from thermal wire reclamation sites need to be controlled by local government agencies.

show abstract

Assessment of polychlorinated dibenzo-p-dioxins and dibenzofurans contribution from different media to surrounding duck farms

Cited by 25 publications

References 25 publications

An Overview of PCDD/F Inventories and Emission Factors from Stationary and Mobile Sources: What We Know and What is Missing

An Overview of PCDD/F Inventories and Emission Factors from Stationary and Mobile Sources: What We Know and What is Missing

Atmospheric Dry Deposition of Polychlorinated Dibenzo-p-Dioxins/Dibenzofurans (PCDD/Fs) and Polychlorinated Biphenyls (PCBs) in Southern Taiwan

A preliminary investigation of unintentional POP emissions from thermal wire reclamation at industrial scrap metal recycling parks in China

Contact Info

Product

Resources

About