The effect of ventilation on the indoor air concentration of PCB: An intervention study

Lyng, Nadja; Gunnarsen, Lars; Andersen, Helle Vibeke

doi:10.1016/j.buildenv.2015.08.019

Cited by 22 publications

(5 citation statements)

References 19 publications

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“…The current PCB levels were much higher than the levels reported in a previous study conducted in the dust samples from rural settings in Gujrat, Pakistan, with a mean concentration of 0.75 ng/g 28 . The indoor PCB contamination in the urban sector is relatively higher than in the rural sector 43 . This might be attributed to the poor natural ventilation, 44 reduced sunlight exposure, 45 high industrial and commercial activities, 46 and complex interior designs in the urban zone 11 .…”

Section: Resultscontrasting

confidence: 68%

Polychlorinated biphenyls in indoor dust from urban dwellings of Lahore, Pakistan: Congener profile, toxicity equivalency, and human health implications

et al. 2021

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This study is the pioneer assessment of the PCBs in indoor dust particles (from air conditioners) of an urbanized megacity from South Asian. The ∑35 PCB concentration ranged from 0.27 to 152.9 ng/g (mean: 24.84 ± 22.10 ng/g). The tri‐ and tetra‐PCBs were dominant homologues, contributing 57.36% of the total PCB concentrations. The mean levels of Σ8‐dioxin‐like (DL), Σ6‐indicator PCBs and WHO2005‐TEQ for DL‐PCBs were 2.22 ± 2.55 ng/g, 9.49 ± 8.04 ng/g and 4.77 ± 4.89 pg/g, respectively. The multiple linear regression indicated a significant correlation of dusting frequency (p = 1.06 × 10–04) and age of the house (p = 1.02 × 10–06) with PCB concentrations in indoor environment. The spatial variation of PCB profile revealed relatively higher concentrations from sites near to illegal waste burning spots, electrical locomotive workshops, and grid stations. Human health risk assessment of PCBs for adults and toddlers through all three exposure routes (ie, inhalation, ingestion, and dermal contact) demonstrated that toddlers were vulnerable to high cancer risk (4.32 × 10−04), while adults were susceptible from low to moderate levels of risk (3.16 × 10−05). Therefore, comprehensive investigations for PCBs in the indoor settings, focusing particularly on the sensitive populations with relationship to the electronic devices, transformers, and illegal waste burning sites, are recommended.

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Section: Resultscontrasting

confidence: 68%

Polychlorinated biphenyls in indoor dust from urban dwellings of Lahore, Pakistan: Congener profile, toxicity equivalency, and human health implications

et al. 2021

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“…Partitioning to indoor surfaces, especially for SVOCs with log K oa between 10 and 13, provides a large reservoir of SVOCs for both surface and gas-phase chemistry. When the original source is removed, this reservoir persists for days, months, or even years , depending on the properties of the sorbed SVOCs.…”

Section: Role Of Partitioning In Indoor Chemistrymentioning

confidence: 99%

Indoor Chemistry

Weschler

Carslaw

2018

Environ. Sci. Technol.

230

216

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This review aims to encapsulate the importance, ubiquity, and complexity of indoor chemistry. We discuss the many sources of indoor air pollutants and summarize their chemical reactions in the air and on surfaces. We also summarize some of the known impacts of human occupants, who act as sources and sinks of indoor chemicals, and whose activities (e.g., cooking, cleaning, smoking) can lead to extremely high pollutant concentrations. As we begin to use increasingly sensitive and selective instrumentation indoors, we are learning more about chemistry in this relatively understudied environment.

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“…According to the present studies, the research on indoor air PCBs mainly focuses on the levels of PCBs in air samples, passive sampling comparison with active sampling, human exposure, potential sources of PCBs, spatial distribution, and the effects of home characteristics on PCBs (Asante et al, 2011;Heinzow et al, 2007;Heo and Lee 2014;Klees et al, 2015;Li et al, 2012;Lu et al, 2015;Lyng et al, 2015;Moussaoui et al, 2012;Tasdemir et al, 2012;Wang et al, 2013).…”

Section: Research Range and Status Of Pcbsmentioning

confidence: 99%

A review of polychlorinated biphenyls (PCBs) pollution in indoor air environment

Dai

Xia

Weng

2016

Journal of the Air & Waste Management Association

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Polychlorinated biphenyls (PCBs) were widely used in industrial production due to the unique physical and chemical properties. As a kind of persistent organic pollutants, the PCBs would lead to environment pollution and cause serious problems for human health. Thus, they have been banned since the 1980s due to the environment pollution in the past years. Indoor air is the most direct and important environment medium to human beings; thus, the PCBs pollution research in indoor air is important for the protection of human health. This paper introduces the industrial application and potential harm of PCBs, summarizes the sampling, extracting, and analytical methods of environment monitoring, and compares the indoor air levels of urban areas with those of industrial areas in different countries according to various reports. This paper can provide a basic summary for PCBs pollution control in the indoor air environment.

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The effect of ventilation on the indoor air concentration of PCB: An intervention study

Cited by 22 publications

References 19 publications

Polychlorinated biphenyls in indoor dust from urban dwellings of Lahore, Pakistan: Congener profile, toxicity equivalency, and human health implications

Polychlorinated biphenyls in indoor dust from urban dwellings of Lahore, Pakistan: Congener profile, toxicity equivalency, and human health implications

Indoor Chemistry

A review of polychlorinated biphenyls (PCBs) pollution in indoor air environment

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