Prevention and control measures for pesticide pollution Relevant national standards

<> pesticide pollution refers to the pollution phenomenon formed by trace amounts of pesticide progenitors, toxic metabolites, degradation products and impurities remaining in organisms, agricultural and sideline products and the environment after pesticide use exceed the maximum residue limit of pesticides. When pesticides are lost to the environment, they will drift into the atmosphere through evaporation and transpiration, which will cause atmospheric pollution. Pesticides in the atmosphere are returned to water and soil through rainfall, which can cause water pollution and soil compaction.

1. What are the hazards of pesticide pollution?

1. Pesticide pollution refers to the pollution phenomenon formed by trace amounts of pesticide progenitors, toxic metabolites, degradation products and impurities that remain in organisms, agricultural and sideline products and the environment after pesticide use exceed the maximum residue limit of pesticides.

2. When the pesticides are lost to the environment, the pesticides are evaporated and transpired into the atmosphere, and the floating pesticides are adsorbed by the dust in the air, which will cause atmospheric pollution. Pesticides in the atmosphere flow into the water through rainfall, resulting in pollution of the water environment. At the same time, pesticides lost to the soil can also cause soil compaction.

3. Most pesticides kill all kinds of organisms without selectivity, including some beneficial animals, such as frogs, bees, earthworms, etc., and the reduction of these beneficial animals will lead to an increase in the number of pests, thus affecting agricultural production.

4. Wild animals and livestock and poultry eating food stained with pesticides will cause acute or chronic poisoning, and pesticides will affect the reproductive ability of organisms.

Second, the main measures to prevent pesticide pollution

1. Rational use of pesticides, to achieve the right medicine, master the appropriate application period and medication method, and strictly grasp the correct application amount. Create conditions to improve the efficacy of the drug and reduce the dosage, such as the improvement of the adjuvant, the improvement of the performance of the pesticide applicator, etc.

2. Reasonable mixing of pesticides, reasonable allocation and rotation of drugs, and simultaneous use of a variety of prevention and control measures. It is also necessary to understand the dynamics of pesticide residues on crops and work out the safe interval for pesticide application, so as to prevent toxic hazards in harvested agricultural products.

3. For the use of pesticides, different spraying methods should be adopted according to the characteristics of specific pesticides. For example, sodium nitrate can only act quickly at temperatures above 15, so it should be sprayed when the temperature is relatively high.

4. Measures to avoid drug cultivation can also be adopted. This can reduce the absorption rate of pesticides by crops, or can change the farming system and cultivation system, which can reduce pesticide pollution.

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