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Full-Text Articles in Engineering
Human Health Effects Assays, Ronald C. Sims, J. L. Sims, R. R. Dupont
Human Health Effects Assays, Ronald C. Sims, J. L. Sims, R. R. Dupont
Biological Engineering Faculty Publications
Current development and use of short-term bioassays to evaluate potential human health hazards of environmental chemical exposure has been the focus of the U. S. Environmental Protection Agency (EPA) Second and Third Symposia on the Ap plication of Short-Term Bioassays in the Analysis of Complex Environmental Mixtures.1'2 Topics addressed included development and applications of bioassays, collection and preparation of environmental samples, characterization of hazardous components using bioassays, and environmental assessment. Bartsch and Tomabis,3 using six mutagenicity assays including sub mammalian and mammalian assays to evaluate the quantitative relationship between carcinogenicity and mutagenicity for 532 chemicals, concluded …
The Application And Effectiveness Of Slow Sand Filtration In The United States, L. A. Slezak, Ronald C. Sims
The Application And Effectiveness Of Slow Sand Filtration In The United States, L. A. Slezak, Ronald C. Sims
Biological Engineering Faculty Publications
A survey of 27 slow sand filtration plants in the United States indicated that most of these plants are currently serving communities of fewer than 10 000 persons, are more than 50 years old, and are effective and inexpensive to operate. A slow sand filtration research facility in Logan, Utah, was compared with the operating plants to determine if locally available, unsieved sand achieved similar results. The 75‐m3/d research facility performed well in removing turbidity, coliform bacteria, and particles of a size representative of Giardia cysts.