I'm looking for deducing Arsenic, pesticides, insecticides and other metals constituency in water and soil.
Lil bit of background:
recently there's been a very high increase in cancer and mental impairment in children with Blue baby syndrome in some nearby places, people have been found with pesticides in their blood! The water they drink is a vicious poisnous cocktail! So what I'm trying to do is first deduce that what all sorts of pollutants are there in the water and if possible soil too and then devise a remedy to cure them. Seeking advice on tackling both the above cases.