Environmental Chemicals II

Examine the cause and effects of the release of an industrial cyanide/heavy metals impoundment into a major European river system. • Examine the heavy metals release from a tailings dam failure in Southwestern Spain. • Describe the science and toxicological impacts of ionizing radiation resulting from radionuclides.
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Environmental Chemicals II Principles of Environmental Toxicology Learning Objectives • Examine the cause and effects of the release of an industrial cyanide/heavy metals impoundment into a major European river system. • Examine the heavy metals release from a tailings Environmental Chemicals II dam failure in Southwestern Spain. • Describe the science Principles of Environmental Toxicology and toxicological impacts Instructor: Gregory Möller, Ph.D. of ionizing radiation University of Idaho resulting from radionuclides. 2 Principles of Environmental Toxicology Principles of Environmental Toxicology Learning Objectives Baia Mare, Romania • Understand the science and issues surrounding • Cyanide leak from a gold smelter pollutes a major mixed waste management European river system, January 2000. in the US. • A cyanide-containing slurry overflowed over a 25 m • Examine the technological difficulties associated length of a tailings dam. with subsurface radionuclide plumes of the Hanford – 100,000 cubic meters of waste into the Tisza and Reservation migrating Danube river system, Europes largest waterway. towards the Columbia • The accident wiped out River. fish stocks and threatened water supplies in several countries downstream from the spill. 3 4 Principles of Environmental Toxicology Principles of Environmental Toxicology Baia Mare, Romania Cyanide Waste Water • Heavy snows caused an overflow of a tailings dam Baia Mare wall. • Waste water containing cyanide flowed into the adjacent Lapus River, then entered the Somes River, AP and crossed the border into Hungary, before reaching the Tisza River.Encarta 5 6 AP 1 Principles of Environmental Toxicology Principles of Environmental Toxicology Acute, Chronic, Sub-lethal Toxicity Waste Material Fish Ingles• 100 thousand cubic meters liquid waste entered the LETHAL EFFECTS SUBLETHAL water with 7800 mg/L cyanide concentration EFFECTS – Hungarian authorities - conservative estimate. CN- A ...