Nitrates linked to bladder cancer

Article Abstract:

A study conducted by Peter Weyer of the University of Iowa shows how nitrates in drinking water may increase the risk of women contracting bladder cancer. Environmental Protection Agency standards for nitrate levels in drinking water are called into question.

Iowa, Research, Pollution control industry, University of Iowa, Bladder cancer, Weyer, Peter

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Wastewater reuse: water shortage solution or long-term nightmare

Article Abstract:

Objections to the municipal wastewater reuse in irrigation received new support from the report published by the US Dept of Agriculture concluding that the practice may result in long-term problems due to groundwater contamination. Municipal wastewater reuse in irrigation is only governed in terms of pathogen content, but not in terms of heavy metal or contaminant loadings. But research on wastewater reuse for irrigation indicates that no substantial groundwater contamination is occuring. This is due to the controls in wastewater application which is maintained at a level that can be used up by the plants or evaporated in the air. States that are using the practice report a 20% decrease in water supply demands.

Water, Control, Waste management, Centralized industrial waste treatment facilities, Industrial waste treatment facilities

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Aircraft measurements of nitrogen dioxide and peroxyacyl nitrates using luminol chemiluminescience with fast capillary gas chromatography

Article Abstract:

The use of fast capillary gas chromatography and luminol chemiluminescence is an effective technique to make airborne measurements of peroxyacyl nitrates and nitrogen dioxide. These gases, which are present in photochemical air pollution, are normally measured using gas chromatography and electron capture detection. However, the traditional technique takes about five minutes to produce an answer. The newer measurement technique produces an answer in about one minute.

Industrial Gas Manufacturing, Industrial gases, Nitrogen Dioxide, Usage, Measurement, Gas chromatography

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