A bio-mat is a layer of slimy dark-grey colored bacteria that forms and lives in your absorption field. This bacteria can slow your systems ability to absorb water by physically clogging the soil interface. Some bio-mat is normal and in fact healthy. When nutrient ladened wastewater passes through the bio-mat, it consumes some of the wastewaterâs nutrients, partially cleaning the water before it passes into the soil.
EPA assesses the cancer risk associated with exposure to the pesticide in food over the course of a person's lifetime. EPA then determines whether that cancer risk can be considered negligible. In general, EPA will grant a tolerance and register any pesticide that poses a negligible or no-cancer risk. The notion of negligible risk is an attempt to set a standard below which the cancer risk is so small that there is no cause for worry from a regulatory or public health perspective. EPA's pesticide program defines a negligible risk a one-in-a-million or less chance of getting cancer as a direct result of a lifetime of exposure to a particular substance.
Risk assessment method deficiencies and data gaps-Maximum reported as used concentration is basis of safety assessment by industry safety panel (Cosmetic Ingredient Review, CIR) - implicit safe concentration limit in product.WG provides information on personal care product ingredients from the published scientific literature, to supplement incomplete data available from companies and the government.