Review on occurrence and behavior of PCDD/Fs and dl-PCBs in atmosphere of East Asia

Trinh, Minh; Chang, Moo Been

doi:10.1016/j.atmosenv.2018.02.037

Cited by 28 publications

(8 citation statements)

References 138 publications

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“…Hazardous waste, including industrial hazardous waste, medical waste, and household hazardous waste (Duan et al, 2008), presents some particular characteristics of ignitability, corrosivity, reactivity, and toxicity. Trinh and Chang (2018) reported that municipal solid waste incinerators (MSWIs) were important emission sources of polychlorinated dibenzop-dioxins and dibenzofurans (PCDD/Fs, also referred to as dioxin) to ambient air (Ni et al, 2009;Hu et al, 2014;Wang # These authors contributed equally. et al, 2015;Bai et al, 2017;Ngo et al, 2018;Trinh and Chang, 2018).…”

Section: Introductionmentioning

confidence: 99%

Characteristics of PCDD/Fs in Flue Gas from MSWIs and HWIs: Emission Levels, Profiles and Environmental Influence

Qiu

Minghui

Peng

et al. 2020

Aerosol Air Qual. Res.

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Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in the flue gas from two types of waste incinerators (municipal solid waste incinerators and hazardous waste incinerators) the most commonly used in China were investigated in this study. The PCDD/F emissions from the stack gas of the waste incinerators showed a large variation from 0.016 to 0.29 ng I-TEQ m -3 with an average value of 0.103 ng I-TEQ m -3 . The emission factors of PCDD/Fs were in the range of 0.056-0.607 µg I-TEQ t -1 (average 0.235 µg I-TEQ t -1 ) for municipal solid waste incinerators (MSWIs) and 0.07-3.27 µg I-TEQ t -1 (average 1.03 µg I-TEQ t -1 ) for hazardous waste incinerators (HWIs), respectively. It was estimated that 10.2-88.0 mg I-TEQ (average 35.0 mg I-TEQ) and 1.13-53.0 mg I-TEQ (average 17.1 mg I-TEQ) of PCDD/Fs were annually released to the atmosphere, respectively from MSWIs and HWIs. The level and congener patterns of 17 species of PCDD/Fs in the ambient air and in soil samples around the MSWIs and HWIs were investigated to evaluate the influence of PCDD/F emission on the environment. The PCDD/F concentrations in the ambient air from the 5 MSWIs and 4 HWIs ranged from 0.088 to 13.9 pg I-TEQ m -3 with an average value of 0.185 pg I-TEQ m -3 . The soil samples in the vicinity of MSWIs and HWIs presented concentrations between 0.68 and 16.0 ng I-TEQ kg −1 with an average value of 3.98 ng I-TEQ kg -1 . This study showed that PCDD/F emission from the incineration plants had an obvious impact on the surrounding ambient air.

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Section: Introductionmentioning

confidence: 99%

Characteristics of PCDD/Fs in Flue Gas from MSWIs and HWIs: Emission Levels, Profiles and Environmental Influence

Qiu

Minghui

Peng

et al. 2020

Aerosol Air Qual. Res.

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“…This opposing trend is a result of the dominance of PCB 169 (which has a TEF that is 1000 times higher than that of any of the other target PCBs in the present study) in samples from the transmission stations. The high TEF value correspondingly translates to high TEQ concentrations observed for PCB 169 and highest mean TEQ concentrations observed for samples from the transmission stations where PCB 169 was dominant (Dai et al, 2020; Trinh & Chang,2018; WHO, 2016). To investigate if the concentrations of dl‐PCBs in samples from the three categories of power stations differ significantly, a Kruskal‐Wallis test was conducted.…”

Section: Resultsmentioning

confidence: 99%

“…Of these congeners, only 12 have one or no ortho chlorine substitution, which enables them to rotate and form a planar structure similar to polychlorinated dibenzo‐ p ‐dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs). This class is collectively called dl‐PCBs because these PCBs mediate toxicity in a similar way to PCDDs and PCDFs (Trinh & Chang, 2018; Tue et al, 2016; WHO, 2010).…”

Section: Introductionmentioning

confidence: 99%

Concentrations and Toxic Implications of Dioxin‐Like Polychlorinated Biphenyls in Soil Samples from Electrical Power Stations in Lagos, Nigeria

Folarin

Abdallah

Oluseyi

et al. 2022

Enviro Toxic and Chemistry

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Dioxin‐like polychlorinated biphenyls (dl‐PCBs) are ubiquitous chemicals which mediate toxicity in a way similar to polychlorinated dibenzo‐p‐dioxins and polychlorinated dibenzofurans. In silico modeling was used to predict the absorption, distribution, metabolism, excretion, and toxicity (ADMET) properties of eight dioxin‐like PCBs in soil samples of 12 power stations in Lagos, Nigeria. Concentrations of Σdl‐PCB8 in soil samples ranged from 490 to 61,000 pg g−1, with mean concentrations of 17,000 pg g−1. The corresponding toxic equivalent (TEQ) concentrations of Ʃdl‐PCB8 ranged from 0.01 to 450 pg TEQ g−1, with a mean value of 42 pg TEQ g−1. Mean TEQ concentrations for Ʃdl‐PCB8 in soil samples from all but one of the sites exceeded the Canadian guideline value of 4 pg TEQ g−1 and the US and German guideline values of 5–10 pg TEQ g−1. However, the TEQ concentrations obtained were all below the US action level of 1000 pg TEQ g−1. The ADMET predictions revealed that all studied dl‐PCBs are inhibitors of three major isoforms (1A2, 2C9, and 2C19) of cytochrome P450 enzyme. Acute oral toxicity (median lethal dose) predictions revealed that all target dl‐PCBs were class III compounds. Hepatotoxicity and carcinogenicity were positive, signifying that the studied compounds all have a tendency to elicit these effects. Occupational daily TEQ exposure via soil ingestion was estimated for an average adult worker weighing 70 kg. The maximum exposure obtained was 0.14 pg TEQ kg−1 body weight day−1, which is half of the European Food Safety Authority (EFSA) tolerable daily intake (TDI) for dioxin‐like compounds. This raises concern over the possible exceedance of the EFSA TDI for these workers if other dietary and nondietary exposure pathways and dioxin‐like compounds are considered. Environ Toxicol Chem 2022;41:800–809. © 2021 SETAC

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“…The de novo process is defined as a pathway by which PCDD/Fs are formed in the absence of aromatic precursors. The decomposition of macromolecular carbon structures of MSW leads to the formation of aromatic precursors, thereby forming dioxins via mechanism (2) [64,65]. Various kinds of waste incinerators, especially MSW incinerators have been identified as major dioxin contributors given that incineration has become the mainstream technology for waste treatment in many countries.…”

Section: Dioxinsmentioning

confidence: 99%

Review of harmless treatment of municipal solid waste incineration fly ash

Zhang

Fang

et al. 2020

Waste Dispos. Sustain. Energy

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Incineration is widely adopted in municipal solid waste management, which produces large amounts of municipal solid waste incineration (MSWI) fly ash. The harmless treatment of MSWI fly ash requires the appropriate disposal of heavy metals and dioxins that are enriched in fly ash. This review summarizes recently developed harmless disposal methods for MSWI fly ash including solidification/stabilization, thermal treatment, and separation/extraction. In addition, we discuss heavy metal and dioxin fixation, and the removal capacity of fly ash via solidification/stabilization (including cement solidification, chemical stabilization, hydrothermal processes, and mechano-chemical methods), thermal treatment (including sintering, fuel-burning, or electric melting/vitrification), and separation/extraction (including water-washing, chemical reagent leaching, biological leaching, electrodialysis separation, chemical reagent extraction, and nanomaterials extraction). The advantages and disadvantages of different harmless treatment methods are compared and future research prospects and suggestions are summarized. This review provides general guidelines for the harmless treatment of MSWI fly ash in the future.

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Review on occurrence and behavior of PCDD/Fs and dl-PCBs in atmosphere of East Asia

Cited by 28 publications

References 138 publications

Characteristics of PCDD/Fs in Flue Gas from MSWIs and HWIs: Emission Levels, Profiles and Environmental Influence

Characteristics of PCDD/Fs in Flue Gas from MSWIs and HWIs: Emission Levels, Profiles and Environmental Influence

Concentrations and Toxic Implications of Dioxin‐Like Polychlorinated Biphenyls in Soil Samples from Electrical Power Stations in Lagos, Nigeria

Review of harmless treatment of municipal solid waste incineration fly ash

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