Polychlorinated biphenyls (PCBs): Characteristics, toxicity, phytoremediation, and use of transgenic plants for PCBs degradation

Munawar, Aneeqa; Akram, Muhammad; Javed, Muhammad Tariq; Shahid, Muhammad

doi:10.1016/b978-0-12-819382-2.00043-0

Cited by 6 publications

(2 citation statements)

References 28 publications

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“…These results are opposed to those reported by other studies showed that lοw-chlorine PCBs are the main PCBs found in indoor environments [43,47] but were in accordance with the results reported by Wang et al in 2013, in which they showed that hexa-PCBs were the largest contributor of ∑ PCBs in all types of analyzed dusts [45] . In fact, these highly chlorinated PCBs are relatively nonvolatile; this explains their persistence and minimal variation throughout the analysis [48] . Therefore, exposure to these chemicals is of the outermost concern due to their known carcinogenic effects, particularly on liver and brain cancer, as well as fertility [48,49] .…”

Section: Pcbs Analysismentioning

confidence: 99%

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Concomitant determination of PAH, PCBs, and phthalates in indoor air and dust from residential houses in the Strasbourg region of France

Al-Alam,

Sοnnette,

Delhοmme

et al. 2024

J Environ Expo Assess

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Global attention is drawn to the significant issue of indoor pollution, given its direct negative impact on human health and wellness. Typically, individuals can nowadays spend 80% or more of their time in enclosed built locations where they can be prone to a multitude of harmful toxic chemicals distributed in particulate and gas phases. Therefore, a systematic efficient monitoring of such chemicals in indoor environments is urgently required to devise and implement various measures that allow their control. The objective of this study is to evaluate the concomitance occurrence of phthalates, polycyclic aromatic hydrocarbons (PAHs), and polychlorinated biphenyls (PCBs) within the indoor settings of residential homes in Strasbourg. It focused on both the indoor air and dust samples collected in nine residential homes in Strasbourg for a one-year sampling period, February 2016 - February 2017. For this, Radiello®, SiC© foams, and Tenax-TA® were successfully introduced and used as reliable passive samplers for the aforementioned matrices. Extractions were carried out using pressurized solvent extraction (PSE) followed by ATD-GC/MSMS analysis. The findings of the presented study revealed that 12 PAHs, 18 PCBs, and 7 phthalates were regularly perceived in the indoor environments of the houses under assessment. In gaseous samples, the average concentrations of the detected pollutant were approximately 3,919, 4.3, and 601.6 ng/sampler for PAHs, PCBs, and phthalates, respectively. As for dust samples, the average concentrations of the detected pollutant were approximately 3,438, 6.2, and 1,816.2 ng/g, respectively. The obtained results showed that PCBs exhibited the lowest concentration in both matrices. However, air samples were mostly contaminated by PAHs, while dust samples showed higher levels of phthalates. These results are correlated to the physico-chemical properties of these compounds and to their origin and source of emission. The findings of this study stress the importance of indoor pollution assessment so that the risks associated with it could be controlled.

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Section: Pcbs Analysismentioning

confidence: 99%

“…In fact, these highly chlorinated PCBs are relatively nonvolatile; this explains their persistence and minimal variation throughout the analysis [48] . Therefore, exposure to these chemicals is of the outermost concern due to their known carcinogenic effects, particularly on liver and brain cancer, as well as fertility [48,49] .…”

Section: Pcbs Analysismentioning

confidence: 99%

Concomitant determination of PAH, PCBs, and phthalates in indoor air and dust from residential houses in the Strasbourg region of France

Al-Alam,

Sοnnette,

Delhοmme

et al. 2024

J Environ Expo Assess

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Assessment of the Pollution Levels, Sources, and Exposure Risks of Polychlorinated Biphenyls (PCBs) in Urban Park Dusts within Lagos Metropolis

Adeniran,

Odediran,

Ogunlade

et al. 2024

Environmental Quality Mgmt

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Polychlorinated Biphenyls (PCBs) represent organic contaminants that are persistent hazardous, carcinogenic, and genotoxic, thereby endangering both human well‐being and the ecosystem. This research delved into concentration patterns, sources, and health hazards associated with PCBs in dust collected from vehicle parks in Lagos metropolis. PCBs in samples of Lagos park dust extended from 1.00 to 36.80 ng/g, with PCB 18 exhibiting the highest mean concentration of 17.02 ng/g. Among the 12 PCBs studied, 5 Cl atom PCBs contributed the highest percentage, constituting 30% of the total PCB content in Lagos park dust. Dioxin‐like PCBs (DLPCBs) made up 27% of the overall PCBs composition in the dust. Using the positive matrix factorization method, eight sources of PCBs were identified, with biomass combustion contributing the highest proportion at 42% of the total PCB emissions. Health risk estimates revealed that the magnitude of PCBs exposure in human followed the order: ingestion > dermal contact > inhalation. PCBs exposure through ingestion in children was 9.33 times higher than that of adults, potentially attributed to the inadvertent intake of dust particles by children via hand‐to‐mouth contact. Cancer risk assessments for all PCB congeners remained below 10−6, indicating acceptable risk levels. PCB 18 had the highest cancer risk values, reaching 8.69 × 10−9 for children and 1.19 × 10−9 for adults.

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Management of POPs: A Caribbean Perspective

Chicas

Valladarez

Carrias

et al. 2021

Emerging Contaminants and Associated Treatment Technologies

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Polychlorinated biphenyls (PCBs): Characteristics, toxicity, phytoremediation, and use of transgenic plants for PCBs degradation

Cited by 6 publications

References 28 publications

Concomitant determination of PAH, PCBs, and phthalates in indoor air and dust from residential houses in the Strasbourg region of France

Concomitant determination of PAH, PCBs, and phthalates in indoor air and dust from residential houses in the Strasbourg region of France

Assessment of the Pollution Levels, Sources, and Exposure Risks of Polychlorinated Biphenyls (PCBs) in Urban Park Dusts within Lagos Metropolis

Management of POPs: A Caribbean Perspective

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