Introduction. In recent years, agricultural production in Russia has increased at the expense of farms and personal subsidiary plots; farmers use chemical protection means - pesticides to protect crops. Farmers and users of private household plots are considered the leading risk group most exposed to pesticides during their application, transportation, and loading. At the same time, farmers and users do not have special training in the safe handling of pesticides. They do not undergo periodic medical examinations, which increases the risk of exposure to pesticides on their health. Purpose of work. Study of exposures of pesticides in the air of the working area and on the skin of workers when they use pesticides in private farms, farms on-field, and high garden crops; justification of the requirements for the safe use of pesticides in private farms and farms. Material and methods. The established exposure levels of pesticides in the air and on the skin were compared with hygiene standards calculated or experimentally set: MPC / OBUV (mg / m3) in the atmosphere of the working area and MPC/ODU (mg/cm2) of skin contamination. The exposure level risk was determined by the KBsumm. The risk of exposure to pesticides for the operator/farmer/user based on the absorbed dose, determined by the value of the safety factor - KBp, and exposure - Kbsumm, is considered acceptable when the value of KBsumm and KBp < 1. Results. The authors presented generalized results of the analysis of the risk of exposure to pesticides in terms of both exposure (KBsumm) and absorbed dose (KBp) in natural conditions when using 20 drugs on field and garden crops in private household plots and farms. The absorbed dose for farmers, calculated taking into account the work for 6 hours, when compared with ADI, in some cases, exceeded the permissible values. The risk of using two preparations in suspension concentrates and one preparation in the form of a nanoemulsion concentrate in terms of the absorbed dose during knapsack spraying of field crops in farms was higher than the acceptable one. Conclusion. The hygienic assessment of the risk of using pesticides of different hazard classes for all land application methods into the environment convinces us the actual hygienic situation to be determined mainly by the state of the equipment used, compliance with hygiene regulations. The degree of professional skills of operators, as well as the culture of pesticide use, are significant. In the future, the risk, especially in terms of the absorbed dose, must be calculated for users of private household plots and farmworkers, taking into account the differences in cultivated areas’ volumes.
Intensive use of pesticides in Russia puts forward the task of identifying ways to prevent their adverse effects on the health of workers. The purpose of the study is to substantiate the safety requirements when working with pesticides in agriculture from a toxicological and hygienic standpoint. An analytical study was performed. Research materials documents regulating the use of pesticides, scientific publications, data from own research. The safety of pesticides for those working with them is based on numerous toxicological and hygienic studies carried out at the stage of registration tests. According to the results of toxicological studies, including the establishment of toxicity parameters for acute inhalation, dermal and oral intake, subacute and chronic exposure, in accordance with the hygienic classification of pesticides by degree of danger, a hazard class is established, which determines the possibility, scale, technology of the use of pesticides on the territory of the Russian Federation. Particular attention is paid to the study of sensitizing effects, irritating effects on the skin and mucous membranes, as well as possible manifestations of long-term effects (teratogenic, embryotoxic, carcinogenic, mutagenic). The severity of carcinogenic and mutagenic effects determines the restriction of the use of pesticides, up to a complete ban. Hygienic regulation of the content of active substances of pesticides is carried out taking into account the hazard class and toxicity parameters. A prerequisite for the safe use of pesticides is the establishment of hygienic standards in almost all environments. The last stage of the study is an assessment of the risk to workers when using each pesticide in real conditions of agricultural production and regulation of use. Conclusion. Safety requirements for those working with pesticides when applied using various technologies in agricultural conditions are determined taking into account the hazard class of pesticides and the equipment used. The application of the method of assessing the risk of exposure to pesticides at the stage of registration tests guarantees the exclusion from circulation in Russia of drugs that pose a real danger to a working person. The minimum risk of exposure to pesticides on workers is ensured by compliance with all safety requirements and application regulations.
The history of the creation of the Department of Occupational Hygiene of the Federal Scientific Center of Hygiene named after F.F. Erisman of Rospotrebnadzor dates back to 1942, when the subject of scientific research was devoted to the study of sanitary working conditions at defense industry enterprises and the development of personal protective equipment for workers. By 1950, the range of issues under study was expanded with initiation of the comprehensive clinical and hygienic studies in the mining, chemical industries, mechanical engineering and agriculture using hygienic, physiological, biochemical research methods, animal experiments. In 1960-1990, the research was carried out in areas including the study of working conditions, workers’ health and toxicological assessment of new substances in the chemical industry, study of the dust factor and occupational health issues in the coal and mining industries; study of the effects on the body of working physical factors (noise, vibration, ultrasound, magnetic fields) in industry and agriculture, study of working conditions, working and rest regimes with new technological processes and new forms of labour management. During the period of 1957-2001, employees of the Occupational Health Department developed 14 sanitary rules (SP) and sanitary rules and regulations (SanPiN), hygienic norms of infrasound and vibration in the workplace. Maximum permissible concentrations (MPC) in the air of the working area for 42 harmful substances, maximum permissible levels (MPC) of skin contamination of workers for 17 chemicals have been developed and approved, the toxicity of 35 different compounds has been studied. According to the results of the research, 45 candidate’s and 18 doctoral dissertations were defended. In the modern period, the accumulated experience of effective scientific activity of the Department of Occupational Hygiene has been mastered .and implemented by a new generation of researchers of the Department of Occupational Medicine of the Institute of Complex Hygiene Problems of the "Federal Research Center of Hygiene named after F.F. Erisman" of Rospotrebnadzor.
The article presents the results of detection of expositions of pesticides in air of working zone and on skin surfaces of users under their application in personal subsidiary plots on field, garden cultures and protected ground. The system of measures of safe application of pesticides in personal subsidiary plots was proposed on the basis of risk evaluation.
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