US EPA

2537557 

Journal Article 

Dietary exposure and screening-level risk assessment of polybrominated diphenyl ethers (PBDEs) and dechloran plus (DP) in wheat, rice, soil and air along two tributaries of the River Chenab, Pakistan 

Mahmood, A; Malik, RN; Syed, JH; Li, J; Zhang, G 

2015 

Yes 

Chemosphere
ISSN: 0045-6535
EISSN: 1879-1298 

118 

57-64 

English 

24981935 

10.1016/j.chemosphere.2014.05.071 

WOS:000346953700008 

No scientific report is available for screening level-risk assessment of newly emerging contaminants, including polybrominated diphenyl ethers (PBDEs) and dechloran plus (DP) in food crops and environmental compartments of Pakistan. Dietary exposure of PBDEs and DP via food crops; screening levels, spatial distribution pattern of PBDEs and DP in air, soil, wheat and rice were assessed along the stretch of upstream feeding tributaries (Nullah Aik and Nullah Palkhu), River Chenab, Pakistan. ∑PBDE levels in air, soil, wheat and rice ranged between 0.59 and 7.80pgm(-3), 6.88 and 37.7ngg(-1), 0.30ngg(-1) and 1.43ngg(-1) and 0.07 and 46.0ngg(-1), respectively. ∑DP concentrations calculated in air, soil, wheat and rice ranged between 0.80 and 0.10pgm(-3), 0.17 and 2.61ngg(-1), 0.90 and 0.49ngg(-1) and 0.00 and 12.5ngg(-1), respectively. The trend of PBDEs and DP distribution pattern was found as follows; industrial/urban areas>industrial/peri-urban areas>agricultural/rural areas. Estimated daily intake (EDI) for wheat and rice was ranged between 0.002 and 0.035pgkg(-1)d(-1) and 0.033 and 0.680pgkg(-1)d(-1). Human health risks for adults on the basis of EDI were lower than the recommended MRL (minimal risk level) and lowest observed adverse effect of level (LOAEL). 

PBDEs; DP; Air; Food crops; Pakistan