期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 511, 期 -, 页码 354-361出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2014.12.030
关键词
OCPs; EDI; Human health; Risk assessment; Punjab; Pakistan
To evaluate the screening level risk assessment of OCPs in rice (Oryza saliva L) straw (n = 20) and rice grains (n = 20), samples were collected from different districts of Punjab Province, Pakistan. Sigma OCPs' levels (ng g(-1)) in rice straw and grains ranged from 3.63 to 39.40, 2.72 to 49.89, respectively. DDTs were found predominant over the other detected OCP isomers followed by HCH and heptachlor. Results of one way ANOVA reflected no significant difference for OCPs' levels among sampling sites, except heptachlor for rice grains. Sigma OCPs' concentration in rice straw samples was exceeding the minimal residual levels (MRLs) (Australian and Japanese). Results of dietary intake and risk assessment suggested that rice straw is not safe for animals to consume as fodder. Human health was suggested to have some carcinogenic risks by consumption of rice grains, however, no considerable hazardous risk (non-carcinogenic) to human health was found. (C) 2014 Elsevier B.V. All rights reserved.
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