Russian scientists have developed methods for detecting traces of pesticides, lead and mercury in manure

Methodology MI 09-2023 allows using gas chromatography to determine residual amounts of organochlorine pesticides, such as dichlorodiphenyltrichloroethane (DDT), hexachlorocyclohexane (HCH), or hexachlorane, in organic fertilizers and livestock by-products. These compounds are highly persistent and can accumulate in the food chain, causing toxic effects on living organisms.

Another technique, MI 04-2023, is used to measure the content of heavy metals, such as arsenic, cadmium, lead and mercury, which can accumulate in the body of animals and be transmitted through animal products into human food, causing various diseases. When released onto fields with manure, these toxic elements negatively affect crop yields, deteriorate product quality and disrupt immune barrier systems, which leads to plant damage by diseases and pests.

The results obtained make it possible to assess the degree of contamination of manure, droppings and other livestock by-products, as well as organic fertilizers, and to take measures for their processing and disposal, the report notes.

Let us remind you that according to the new law on livestock by-products, manure can be applied to the soil in processed form; before application, the safety of the product must be confirmed. 

“The regulations now set safety standards for the processed product. Therefore, whichever method the livestock farmer chooses, he must achieve these safety goals. To confirm compliance with safety indicators, studies must be conducted in an accredited laboratory and recorded. Moreover, this must be done before introducing substances into the soil,” Maxim Sinelnikov, deputy HEAD of the National MEAT Association, member of the Public Council under ROSSELKHOZNADZOR, previously commented to Veterinary Science and Life.