Measurement of organochlorine pesticides in drinking water: laboratory technical proficiency testing in Mexico

Concentrations of organic contaminants (organochlorine pesticides and biphenyls) were studied in bottled drinking water (BDW) from Mexico City where consumption is high and considered a healthy alternative to the potable water network. The results of 36 samples (1.5 L and 19 L presentations, 18 samples of each) showed the presence of seven pesticides (HCH-hexachlorocyclohexane isomers, heptachlor, aldrin and p,p'-DDE'-dichlorodiphenyldichloroethylene) and some polychlorinated biphenyls-PCBs (28, 58 and 101). The concentrations were compared with the drinking water standards set by NOM-127-SSA1–1994, USEPA (United States Environment Protection Agency) and the World Health Organization (WHO) for pesticides and NOM-127-SSA1–1994 for biphenyls. The concentrations of the majority of organochlorine pesticides were within drinking water standards (0.01 μg L−1) except for β-HCH in BDW samples 3, 5 and 6 with values of 0.121, 0.136 and 0.192 μg L−1, respectively. The total PCBs concentration in BDW did not represent any hazard to human health, according to Mexican regulations, which establish a maximum permissible level of 0.50 μg L−1. A BDW quality monitoring program is recommended and further research on ways of reducing the presence of organochlorine contaminants to prevent bioaccumulation and toxicological effects over population with emphasis in those that with constant consumption.

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Organochlorine pesticides characteristics in water column of strategic drinking water sources in the Yangtze estuary

Chinese Journal of Geochemistry ◽

10.1007/bf02840092 ◽

2006 ◽

Vol 25 (S1) ◽

pp. 181-182 ◽

Cited By ~ 2

Author(s):

Qinghui Huang ◽

Jianhua Li ◽

Jianfu Zhao ◽

Ran Xu ◽

Li Xie

Keyword(s):

Drinking Water ◽

Water Column ◽

Organochlorine Pesticides ◽

Water Sources ◽

Yangtze Estuary ◽

The Yangtze Estuary ◽

Drinking Water Sources

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Health Risk Assessment of Organochlorine Pesticides in a Shallow Freshwater Lake, China

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.864-867.871 ◽

2013 ◽

Vol 864-867 ◽

pp. 871-875 ◽

Cited By ~ 1

Author(s):

Wei Guo ◽

Yao Feng

Keyword(s):

Drinking Water ◽

Surface Water ◽

Health Risk ◽

Organochlorine Pesticides ◽

Risk Level ◽

Acceptable Risk ◽

Potential Health ◽

Potential Health Risk ◽

The World ◽

Carcinogenic Effects

Organochlorine pesticides (OCPs) including Hexachlorocyclohexanes (HCHs) and dichlorodiphenyltrichloroethanes (DDTs) in surface water of Lake Baiyangdian were determined to assess the potential health risk when using as drinking water for children and adults. The concentration of HCHs and DDTs in surface water were in the range of 2.74-11.50 ng L-1 and 3.48-16.88 ng L-1, respectively. Compared with similar results reported around the world, the level of OCPs in this study was in the mid-range. The analysis of health risk indicated that risks from OCPs in most part of the lake would not be risky to human health according to the acceptable risk level, while carcinogenic effects caused by α-HCH might occur if drinking water from Nanliuzhuang (NLZ) and Laowangdian (SCD). α-HCH and β-HCH were the dominating factors for carcinogenic and non-carcinogenic risks, respectively. Risks of OCPs for children were much higher than those caused by OCPs for adults.

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