Residual Analysis of Pesticides in Surface Water of Nagpur, India: An Approach to Water Pollution Control

Residual Analysis of Pesticides in Surface Water of Nagpur, India: An Approach to Water Pollution Control

Binota Thokchom (IIT Guwahati, India) and Neeta Thacker (NEERI, India)
DOI: 10.4018/978-1-5225-6111-8.ch016

Abstract

Seventy-five percent of India's economy depends on agriculture with statewide pesticide consumption of 0.5 kg/h. The highest pesticide consuming states are Tamil Nadu and Andhra Pradesh in between 0.8 to 2 kg/ha. Maharashtra is the topmost consumer of pesticides with over 23.5% share. Nagpur city (the present study area) of Maharashtra has high population density with intensive farming practices. Organochlorine and organophorous pesticide residues were measured in surface water collected from major lakes and rivers located in and around this city. A comparative study with previous records has also been discussed. Monitoring experiments conducted during pre-monsoon, monsoon, and post-monsoon seasons allowed the different samples to show their susceptibility for the above-mentioned pesticide residues.
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Classification Of Pesticides

  • 1.

    Based on the Target Organism (Yadav & Devi, 2017): Chemical classification of pesticides (insecticides) (see Figures 1 and 2).

Figure 1.

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978-1-5225-6111-8.ch016.f01
Figure 2.

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978-1-5225-6111-8.ch016.f02
  • 2.

    Based on Applications: These are generally sprays, dusts, aerosols, emulsifiable concentrations etc.

Originally, these chemicals were classified on the basis of their mode of entry in the bodies of insects, viz. stomach poisons, contact poisons and fumigants. However, this classification has become outdated, because most of the organic insecticides act both as stomach and contact poisons and some have also the added fumigant action.

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