EPA decision to revise selenium standard stirs debate

Article Abstract:

The EPA is revising its water standard for selenium after studies that say the trace metal cause more widespread reproductive impairment in wildlife as was previously conceived. Academic and non-EPA government biologists suggest that the standard for selenium in water, at 5 parts per billion (PPB), should be halved to render protection to wildlife. The revision of the standard, however, is being opposed by mining and other industries, which say that contamination is not widespread in US waters, but from soil with high selenium causing danger to wildlife.

Comment:

EPA is revising water standard for selenium after studies that it cause more widespread reproductive impairement to wildlife

Waste Management and Remediation Services, Water Pollution, Article

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Scientists debate fertilizing soils with sewage sludge

Article Abstract:

The Environmental Protection Agency is receiving a lot of criticisms from the scientific community for the new standards that the agency will set for the use of sewage sludge as fertilizer due to health concerns. Sewage sludge contain heavy metals and pathogens can affect people's health and the environment.

Refuse systems, Waste Disposal NEC, Other Waste Collection, Refuse disposal industry, Waste management industry, Waste disposal

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Sewage sludge pros and cons

Article Abstract:

The use of sewage sludge as a fertilizer has been lauded in the past, but tougher water treatment regulations are causing an increase in sludge, which has farmers and scientist concerned of possible heavy metal pollution in the soil.

Water Supply and Irrigation Systems, European Union, Water supply, Water Treatment, Statistical Data Included, Water utilities, Illustration, Environmental policy, Sewage sludge, Heavy metals

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