Explain the fate of pesticides in the environment.
Pesticides play a crucial role in modern agriculture by controlling pests, diseases, and weeds, thereby increasing crop yield and quality. However, their extensive use also raises concerns about their fate in the environment. The behavior and movement of pesticides depend on their chemical properties, environmental factors, and application methods. Understanding their fate is essential for mitigating negative impacts on human health, non-target organisms, and ecosystems.
### 1. Introduction to Pesticide Fate in the Environment
Pesticides undergo various processes after application, which determine their persistence, mobility, and degradation. These processes include volatilization, degradation (chemical, microbial, and photodegradation), adsorption, leaching, runoff, plant uptake, and bioaccumulation. The interaction of these processes influences pesticide residues in soil, water, air, and biota.
### 2. Fate of Pesticides in Soil
Soil acts as a primary medium for pesticide application, and their fate depends on soil composition, organic matter, microbial activity, temperature, and moisture. Key processes affecting pesticides in soil include:
#### a) Adsorption and Desorption
- Pesticides bind to soil particles through adsorption, influenced by soil texture, organic matter content, and pH.
- Strongly adsorbed pesticides __________ ______ ________ ____ __________ ___.
___ ______ ___ ________ ________ _____ ________ __________.
____ ________ __________ ___ ____ _______ ___ _______.
____ __________ ___ _______ __________ ___ ____ ____ ______ _____ _____ ___.
______ _________ ______ _____ __________ ____ ____ _______ _______ ____.
________ _______ _____ ________ _______.
_____ ________ _______ _______ ____ _______ ____.
________ _____ _______ _______ _________ _________ ______ __________.
________ _______ ___ _____ _________ ________.
________ __________ ___ ___ _________ _______ __________ _________ ___ __________.
______ _____ __________ _____ _____ _______ _______ ____ _____ ______.
_______ _____ __________ _________ ___ ________ ___ __________ ______.
______ _____ _________ ______ ____ __________ ______ ____ ___ ____.
____ ________ _______ __________ ________.
_______ ______ ______ _____ ______ _______.
__________ _____ ____ __________ ________ ____.
_____ ___ __________ ___ _______ ____.
_____ _____ ________ ________ ________ _____ _____ _____ ______ _______ _________.
____ ________ ____ ___ _____ __________ __________ _____ _____ ___ __________ ____.
___ __________ ___ ______ ____ __________ __________.
_____ ______ _______ ___ ___ _________ ______ ____ ___ _________ __________.
_____ _________ ____ ____ ______ ________ _________.
__________ __________ __________ _______ _______ ___ ____.
__________ ____ _________ ______ ___ ________ ___ ________ ____ _______ ______ ________.
____ _________ ______ ______ __________ _________ ______ ______ __________ ______ ______.
____ ____ ______ _______ _____ ________.
_____ ________ ____ ______ ___ ___ _____ ________ _______.
______ ________ _____ ___ ___ ___ _____ ________ ______ ____.
_____ __________ ____ ___ ___ ______ _______ _______ ____ __________ ______.
______ _______ ___ ____ __________ __________ ___ _________.
_______ ______ ______ _______ _________ _____ ___ _________ _____ _________ ________.
______ ____ ________ ___ ________ _______.
_____ ____ _______ _______ ___ _______ _______ ____ ________ _______ ___.
____ _______ ___ ___ ________ ______ __________ ______ __________ ____ _______.
_______ ____ _____ ________ ___ _________ ______.
______ _________ ____ ____ __________ _____ ________ ____ ______.
___ __________ ___ __________ _____ _________ _____ _______ ____ _______ _______.
__________ ___ ____ ____ __________ _____ _____ ____ __________ __________ ________ _____.
___ _________ _______ ______ _____ ___ ____ __________ ______ ___ ________ ________.
_____ ________ ________ ________ _______.
____ _____ __________ _________ _________.
______ _________ _____ __________ ___ __________ _________ _________ __________ __________.
______ _______ _______ ___ _____ ________ ___ ___ ____ _________ ____.
__________ ___ _____ _____ _____ ____ _______ _________ _________ ______.
__________ _________ _________ ________ ________ _______.
_____ ___ _______ _________ __________ _____ _________ ___ ____ _____ __________ _________.
________ ____ ______ ____ ____.
________ _____ _____ ______ ___.
_________ __________ _______ ________ _____ _______ __________ ______.
_____ ________ ____ ______ ______ ___ ____ _______ _________ _______ ______ __________.
________ _________ ____ ____ _______ ____ ___ ____ __________ _________ _______.
___ _________ _______ __________ ________ _____ ___ ____ _______ __________ __________ _______.
________ _____ ______ ________ __________ ____ ___ _________.
_______ __________ __________ ___ ___ ______.
_______ _________ ________ __________ ________ _______ ________ ________ ________ ____ ______ __________.
__________ _________ ____ _________ ________ ____ ________ _____ ________ __________ _______.
____ _____ ____ __________ ________ ___ __________ ______ _____ ________ ________ _______.
_________ ____ ___ _________ ________ _______ _________.
___ _________ ____ ________ ___.
____ ________ ____ _______ __________ ________ ______ _________ __________ _______ __________.
_________ _______ _____ __________ ___ _____ ____.
___ ________ ______ ________ ___ ________ ___ _________ _____ ___ __________ ___.
____ ___ ____ ___ ______ _____ _______ _______ __________ ________.
__________ ______ ________ ____ ____ _______ ______ ____ ______ ____.
____ _____ _____ __________ ________ ________ _______ __________ _______ ______ __________.
__________ ____ ___ _____ _____ ______ ___ _________.
_______ _______ ____ ______ ___ _____ _________ ___ _________ ____ _______ ____.
____ ____ _____ __________ ____.
_________ __________ ______ _______ ______ ________ __________ __________ _________ ___.
______ ___ ________ ____ _____ __________ _______ ______ _________ _________.
_____ ________ ____ __________ ______ ________ ________ ______ ______ __________ ______.
______ ____ __________ ____ _____.
______ ______ ___ ________ _______ ___ ________ ________ ___.
________ ________ ______ _____ ______ ________ ______ _________ ______ __________ ________.
______ ______ _______ ___ ______ ________ _______ ____.
________ _______ _____ ________ ________ ____ ________ ________ ______ _________ ______ _________.
______ _______ ______ _________ __________ ____ ________ ______.
_________ ________ ___ ____ ________ ________ ______ ____.
_______ ___ __________ ____ ___ ________ ___ ______ ____ _____ _________ _____.
___ _____ ____ ____ ________ ___ ___ ______ _________.
_______ _________ ________ _____ ___.
__________ ____ ___ ____ _________ ________ ____ _____ _______ ________.
______ _____ _______ _________ ____ ____ ________ ________.
____ _________ _______ _____ ____ ______ ____ _______ ______ ________.
________ ________ ______ ________ ___ ____ ___ __________ _____ ______ ________.
____ __________ _______ _______ ___ ______ _________ ________ _________ ______.
__________ ____ ___ ________ _______ _______ _____ __________ _______.
______ _________ __________ __________ _______ ____ ____ _____.
_______ ________ ______ ___ ____ ____ __________ _________.
____ _____ _________ _________ _____ _______ __________ ___ _____.
__________ ____ _____ _________ ___.
______ _________ ____ ________ _______ __________ _________ __________ _____ _____ ____ ___.
____ ______ _________ _____ ________ __________ ____.
__________ ____ ____ _______ ____ ________ ________ __________ ___ _________.
________ _____ __________ _____ _____.
______ __________ _______ ________ _________.
___ _____ _________ _____ _____ _________ ___ _________ _____.
_________ ________ ___ __________ ___ _____ _______.
______ ___ _____ ____ ____ ____.
____ __________ _____ __________ __________ ____ ________ _________ _________.
__________ ___ __________ _____ _____ ____ ______ ___ ____ ___ _________ __________.
____ _______ __________ ___ _____ _______ ___ _____ _______.
____ ________ ______ __________ ___ ______ ________ _____ _________ ________.
_________ ________ ___ ____ ________ __________ ______ _______ ________.
____ ________ _________ _________ __________ _____.
___ ________ _______ ____ _______ __________ ___.
________ _______ ______ _________ ___ ______ _____.
___ __________ ___.
Get Full Answer on WhatsApp