Results 221 to 230 of about 153,486 (265)

Clean Water Raingers: How to be a Clean Water Rainger

2001
This booklet contains useful information about water pollution intervention for children. It provides basic information about the water cycle, watersheds, pollution, and pollution intervention. This booklet also contains games to teach children environmental terms.
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Clean Water Raingers: How to be a Clean Water Rainger

2005
This booklet contains useful information about water pollution intervention for children. It provides basic information about the water cycle, watersheds, pollution, and pollution intervention. This booklet also contains games to teach children environmental terms.
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The Clean Water Rule: defining the scope of the Clean Water Act

Freshwater Science, 2015
What waters are subject to federal regulatory protection by the US Clean Water Act (CWA)? Over the 43 y since passage of the CWA (formally the 1972 Federal Water Pollution Control Act [33 U.S.C. §§1251–1387]) little clarity and less consensus has emerged regarding this fundamental question.
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Raising a glass to clean water

Journal of Environmental Monitoring, 2002
For this special issue on drinking water quality, Focus takes a look at the regulatory frameworks for drinking water in Europe and the US and the role of environmental analysis in their future evolution.
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Clean water, clean hands or new vaccines?

Journal of Infection, 2017
Throughout human history, pathogens transmitted through feces from person to person have caused substantial mortality. Over a century ago civil engineers in high income countries developed approaches to collect and remove feces from the environment that in communities with high incomes and strong governments markedly reduced the burden of enteric ...
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Clean Water

2nd Global Virtual Conference of the Youth Environmental Alliance in Higher Education, 2020
Jessica O'Reilly, Kenna Malott
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Clean Waters, Clean City: Sustainable Storm Water Management in Philadelphia

2011
The city of Philadelphia has historically been among the leaders in urban water management in the United States and abroad. Philadelphia was not only the first city to provide water as a public utility, but it has also pioneered new technologies—such as distributing its water supply through a centralized system, using hydropower for pumps, and ...
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Clean Water With Clean Energy

2020
O. Parodi, K. Preiser, P. Schweizer-Ries
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"Clean Water, Dirty Dams: Oxygen Depletion and the Clean Water Act"

1984
In holding that oxygen depletion caused by dams was not covered under the Clean Water Act (CWA), the courts in the Missouri and Gorsuch II cases opted for a semantic argument that ignores the purpose of the CWA and the realities of water pollution. The inclusion of dam-induced oxygen depletion in Environmental Protection Agency enforcement of the CWA ...
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A novel water-free cleaning robot for dust removal from distributed photovoltaic (PV) in water-scarce areas

Solar Energy, 2022
Yanhui Zhang, Shengxian Cao, Siyuan Fan   +2 more
exaly