how long do pesticides stay in the air

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  • How long does a pesticide stay in the soil?

  • Under most situations we would encounter in an agricultural setting, a pesticide half-life can range from a few hours to 4-5 years. Most pesticides are broken down by microbes in the soil, so environmental conditions that reduce microbial activity (cold, dry conditions) will extend pesticide remaining in the soil.

  • How do pesticides affect the air?

  • Pesticides in agriculture and urban settings have the potential to contaminate our air, affecting human, animal and plant health. Some pesticide ingredients stay in the atmosphere for only a short period of time, while others can last longer. Pesticides released into the air can settle to the ground,…

  • What is the half-life of a pesticide?

  • A half-life is the time it takes for a certain amount of a pesticide to be reduced by half. This occurs as it dissipates or breaks down in the environment. In general, a pesticide will break down to 50% of the original amount after a single half-life. After two half-lives, 25% will remain. About 12% will remain after three half-lives.

  • How are pesticides broken down?

  • Most pesticides are broken down by microbes in the soil, so environmental conditions that reduce microbial activity (cold, dry conditions) will extend pesticide remaining in the soil. In general, the trend is for the newer pesticides to last far less than those used decades ago (eg, DDT).

    how long do pesticides stay in the air

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