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… (February 2016); • Knowledge for transitions (May 2016); • Land as a resource (October 2016). 8 Chemicals for a … and skin diseases. Environmental effects include the degradation and loss of function of ecosystems and their … cost to the federal government of remediating contaminated land and water — CAD 435 billion; • costs of pollution in …

… can, if not treated and correctly disposed of, contaminate land and water bodies. Used acid with high concentrations of lead is often dumped on land or released into waterways. Lead can enter the food … by the action of hydrogen sulfide (from bacterial degradation of organic matter) on lead. There may also be …