PESTICIDE RESIDUES CONTAMINATION OF MILK AND DAIRY PRODUCTS. A CASE STUDY: BACAU DISTRICT AREA, ROMANIA

Abstract : Organochlorine pesticides (OCPs) are highly toxic, persistent organic pollutants (POPs) with adverse effects to the environment and human health. The main way of human exposure to the OCP contamination is through food, especially the food products of animal origin. The aims of this study were to determine the presence and concentration of organochlorine pesticide residues in milk and dairy products samples collected from Bacau district area and to assess human exposure to OCPs through the consumption of these products. A total number of 54 samples of milk and dairy products were analysed for their residual content of hexaclorocyclohexane isomers (HCHs) and dichlorodiphenyltrichloroethane (DDT) and its analogues. The levels of OCP residues were determined by gas chromatography - mass spectrometry (GC/MS) method. The results indicated that all the analysed samples were contaminated with alpha-HCH, beta-HCH and gamma-HCH, respectively. In all the analysed samples, DDT and its analogues were non-detectable. The presence of gamma-HCH (Lindane) was detected in the range of 0.0042 to 0.2124 (mg kg(-1) fat) for raw cow milk, of 0.0028 to 0.1408 (mg kg(-1) fat) for pasteurised cow milk and of 0.0042 to 0.2682 (mg kg(-1) fat) for sour cream. It could be concluded that organochlorine pesticide residues were detected in raw cow milk and dairy products as they were persistent in the environment due to their slow decomposition rate, long half-life and high stability in the environment. In most cases, the values of detected organochlorine pesticide residues exceeded the maximum residue levels provided by Romanian and international regulations. This study represents an important step towards a more comprehensive understanding of the human health risks associated with OCP exposure via milk and dairy product consumption in Romania.
Type de document :
Article dans une revue
Journal of environmental protection and ecology, 2016, 17 (3), pp.1229--1241
Domaine :
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Contributeur : Laurent Jonchère <>
Soumis le : jeudi 10 novembre 2016 - 17:10:01
Dernière modification le : vendredi 11 novembre 2016 - 01:05:54

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L. Rusu, M. Harja, D. Suteu, A. Dabija, L. Favier. PESTICIDE RESIDUES CONTAMINATION OF MILK AND DAIRY PRODUCTS. A CASE STUDY: BACAU DISTRICT AREA, ROMANIA. Journal of environmental protection and ecology, 2016, 17 (3), pp.1229--1241. <hal-01395468>

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