Details

Autor(en) / Beteiligte

• Mahmood, Adeel
• Syed, Jabir Hussain
• Malik, Riffat Naseem
• Zheng, Qian
• Cheng, Zhineng
• Li, Jun
• Zhang, Gan

Titel

Polychlorinated biphenyls (PCBs) in air, soil, and cereal crops along the two tributaries of River Chenab, Pakistan: Concentrations, distribution, and screening level risk assessment

Ist Teil von

• The Science of the total environment, 2014-05, Vol.481, p.596-604

Ort / Verlag

Kidlington: Elsevier B.V

Erscheinungsjahr

2014

Quelle

MEDLINE

Beschreibungen/Notizen

• This study reports the first systematic data on PCB levels and their risk assessments by consumption of cereal food crops from Pakistan. Polychlorinated biphenyls (PCB) including dioxin-like PCBs (dl-PCBs) were analyzed in wheat (n=28), rice (n=28), air (n=6), and soil (n=28) samples to assess the levels, spatial distribution pattern, and their risk assessments along with the two tributaries of River Chenab, Pakistan. ∑33PCB concentrations ranged between 0.15–2.22ngg−1dW, 0.05–9.21ngg−1dW, 0.70–30.5ngg−1dW and 41–299pgm−3 in the wheat, rice, soil, and air samples, respectively. In the current study, comparatively lower dioxin toxicity equivalency (TEQ) values were calculated from the previously reported data. Hazardous ratio (HR) for human health risk assessment allied to non-cancer was found lower than integrity. •First study to report PCB in food crops from Pakistan•Tri and teta-CBs were the dominant PCB homologs.•Urban/industrial sites were classified as potential sources of PCB in the study area.•Lower TEQ values were calculated as compared to the previously published data.