Table 1.

Sample collection plan.

Types of vegetables	Chemical parameters	Microbial contaminants	No. of samples	Sampling size	Sampling time
Tomato	Heavy metal (Pb, Cr, Cd), and pesticide residues (Diazinon, Malathion, Cypermethrin, Dimethoate, Quinalphos and Chloropyrofos)	Aerobic plate count, Total coliform count, E. coli, Salmonella spp., Staphylococcus spp.	30	Min 500 g composite/sample	10:00–12:00 hrs + 2 hours to reach Lab
Lettuce	Same as above	Same as above	30	Min 200 g composite/sample	Same as above
Cucumber	Same as above	Same as above	30	Min 500 g composite/sample	Same as above
Coriander leaf	Same as above	Same as above	30	Min 200 gm composite/sample	Same as above