'Irina cech' presentation slideshows

WATER & HEALTH: MICROBIAL RISKS

WATER & HEALTH: MICROBIAL RISKS. Irina Cech Ph.D. Objectives:. Describe major health problems associated with polluted drinking water. Describe major health and ecological risks in the coastal zone Describe basic principles and methods of making water potable.

450 views • 26 slides

Hurricanes, Floods, and Droughts

347 views • 13 slides

Sewage treatment

Sewage treatment. Irina Cech, PhD. U.S. Clean Water Act. Requires that raw sewage be treated to remove dangerous viruses, parasites and other pollutants before it is discharged into streams, lakes, and drinking water sources . Credit: Irina Cech. Wastewater treatment segments & purpose:.

323 views • 10 slides

Examples of Unresolved Issues

Examples of Unresolved Issues. Irina Cech, PhD. Unresolved Issues:. Petroleum wastes; Mining and fuel combustion wastes; Other non-point source pollution; Inadequate health effect data; Conflicting jurisdictions.

177 views • 2 slides