Regarding the public concerns about serious health risks from pesticide, the occurrences of 105 pesticide residues including Organochlorine, Organophosphorus, Organonitrogen, Dicarboximides, Strobilurin, Triazine, Pyrethroids were assessed using a descriptive method in 25 fresh and greenhouse vegetable samples (fresh carrot, greenhouse tomato and cucumber).

Considering the stiff competition from various fruit producing countries, Indian growers have the great responsibility to keep the pesticide residue levels to the minimum to meet international standards. Various research organisations have developed integrated approaches to control pest and disease problems.

Pesticides are very expensive chemicals and require a lot of investment and research effort and thus their useful life needs to be prolonged through judicious use. Contrary to the opinion of many, it is now well established that pesticides have a definite role to play in pest management, as they offer the only means to combat damaging levels of pest incidence.

Pot experiments was conducted to observe the impact of CdCl2, CuCl2, Pb(NO3)2 and ZnCl2 on chlorophylls of Brassica juncea, Brassica rapa, Lactuca sativa, Lepidium sativum and Daucus carota. Present studies suggest that depletion of essential micronutrients like Zn and Fe; or Zn and Cu; or Fe and Mn in the plant body after heavy metal accumulation may be one of the causes for chlorophyll loss.

A study was conducted in Eloor Industrial Area of Ernakulam district of Kerala to assess the level of environmental pollution by pesticide manufacturing factories in this region. Samples like blood, urine, dung and milk were collected from cattle belonging to this area and were analysed for DDT residues using the Gas Liquid Chromatography.

The study involves the atomic absorption analysis of four selected heavy metals lead, cadmium, zinc and copper pollution in the soil samples of Pala municipality. A total of 120 surface soil samples (0-5 cm) and corresponding 120 sub-surface soil samples (5-10 cm) were collected from industrial, agricultural, road side and institutional areas.