List the negative impact of agrochemicals.

Explanation

(i) Excessive use of fertilizers and pesticides leads to the contamination of groundwater and make, it nonpotable, ultimately affecting the soil fertility.
(ii) chemicals like DDT (dichloro diphenyl trichloro ethane) and PCBs (polychlorinated biphenyls) cause nutrient and pH imbalance and quality reduction of agricultural produce. This problem can be minimised by sustainable agriculture.
(iii) Pesticides increase incidence of brain, blood cancer and neurotoxicity, Parkinson like symptoms, infertility, birth defects, reproductive and behavioural disorders.