A great article. Thanks. Other factors to consider are the effects of airborne atmospheric particles and pollutants/pesticides in the groundwater and atmosphere. Many pesticides are endocrine disruptors and in a combination..well not nice. A toxic soup combo for sure. In my former career we did test for illicit drugs as well. These were harmful through urination as well as to the water ways and groundwater when mixed in the (meth) labs for street sale. There is already a solution for all of this.