Abstract
In Kazakhstan, camel breeding mainly occupies areas sometimes close to polluting industries or other sources of pollu- tion as industrial agriculture, mainly cotton. Products issued from camel farms close to these sources as camel raw milk and fermented milk (shubat), wool and meat, traditionally used by humans could be contaminated. We investigated camel raw milk and fermented milk for the content of heavy metals (lead, cadmium, zinc and copper), radionuclide and some organic pollutants (PAHs, pesticides and indicator PCBs) in samples from different regions with a priori high risk of pollution (Atyrau, Kyzylorda, South-Kazakhstan and Almaty region). In the present paper, only some milk samples presented high lead concentration (> 500 ppb). After analysis for organic pollutants, it was observed some traces of hexachlorocyclohexane, lindane, hexanchlorothalonil in milk samples from different regions. One sample was also slightly contaminated with radionuclide. These preliminary results allow establishing a first map of risk for camel farming. As the whole, South-Kazakhstan appeared the most exposed region.
Highlights
We investigated camel raw milk and fermented milk for the content of heavy metals, radionuclide and some organic pollutants (PAHs, pesticides and indicator PCBs) in samples from different regions with a priori high risk of pollution (Atyrau, Kyzylorda, South-Kazakhstan and Almaty region)
After analysis for organic pollutants, it was observed some traces of hexachlorocyclohexane, lindane, hexanchlorothalonil in milk samples from different regions
The consumption of camel milk is very popular in Kazakhstan where it is known for its medicinal and dietary properties [1]
Summary
The consumption of camel milk is very popular in Kazakhstan where it is known for its medicinal and dietary properties [1]. These properties are widely exploited for human health, as it is in several countries from the ex-Soviet Union and developing countries [2,3]. The manufacturing of metals and the minerals had high impact on environmental contamination, few control of rejecting contaminants being implemented. In those conditions, milk producing camels can be exposed to several indesirable compounds. Concerning sheep and goat milk there are few references, and none on camel milk
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