Scientific research on the toxic effects of waste disposal should continue. Toxicity testing of leachate, ash, and emissions into the air should be impartial, random and frequent.
Fly ash should be tested separately for pollutants and disposed of as required by law based on test results.
Because public health and the environmental impacts of solid waste disposal are of primary concern, materials found to contribute to the formation of hazardous wastes, such as dioxins and heavy metals, including cadmium, lead, and mercury, should be removed.
To gain public confidence that disposal methods do not harm public health or the environment, local pollution control standards can exceed EPA standards.