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are. Hazardous wastes are a worldwide problem. Credit: Irina Cech, PhD. 20 years ago, the most serious accident in nuclear history changed the lives of many. Deposition of Cs 137 throughout Europe as a result of the Chernobyl accident (De Cort et al., 1998 ) .

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  1. are Hazardous wastes are a worldwide problem Credit: Irina Cech, PhD

  2. 20 years ago, the most serious accident in nuclear history changed the lives of many. Deposition of Cs 137 throughout Europe as a result of the Chernobyl accident (De Cort et al., 1998)

  3. Incidence rate of thyroid cancer in children exposed to I131as a result of Chernobyl accident (After Jacob et al, 2005)

  4. Blind and disfigured for life, this boy lived downwind from nuclear test site Between 1949 and 1989, nearly 500 nuclear devices were detonated in northern Kazakhstan Source: National Geographics

  5. Definition of Hazardous Wastes • Ignitable • Corrosive • Reactive • Toxic • Listed wastes @Irina Cech

  6. If waste is disposed on a porous soil, it penetrates downward.

  7. Cross-section of this landfill @ Irina Cech

  8. US Comprehensive Environmental Response, Compensation, & Liability Act, 1980: • To identify abandoned facilities which present threats to the public health • To initiate cleanup actions at these sites Credit: Irina Cech, UTSPH

  9. Superfund Sites in the United States

  10. Typical methods of hazardous waste storage and disposal include: : • surface impoundments (storing it in lined ponds), • high temperature incineration (controlled burning), • municipal and hazardous waste landfills (burying it in the ground), • deep well injection (pumping it into underground wells). More promising methods focus on minimizing waste,reusing and recycling chemicals, finding less hazardous alternatives.

  11. (circa 1986) @Irina Cech

  12. Resources Conservation and Recovery Act of 1976 • Tracks hazardous wastes “from cradle to grave;” • Regulates generation, transport, monitoring, and final disposal; • Regulates design and post-closure care of disposal facilities.

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