Organochlorine pesticide residues in dairy milk in and around Delhi.

A survey of dairy milk and milk products in and around Delhi, India, was undertaken to monitor the levels of DDT and HCH. The survey revealed that pesticide residue levels in milk often exceeded the limits recommended by the Food and Agriculture Organization/World Health Organization Expert Committee. Maximum residue levels of total HCH in milk (fat/whole milk basis) has not yet been prescribed. The 15 samples of dairy milk and 4 samples of milk products analyzed had residue levels ranging from 0.022 to 0.166 micrograms/g for HCH and from 0.042 to 0.382 micrograms/g for DDT.