California's second wet winter in a row has left L.A's water supplies in good shape for at least another year, but the inevitable return to dry conditions could once again put the city's residents in a precarious position.
Environment
11 hours ago
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48
Joaquim Goes, an ocean biochemist at Columbia Climate School's Lamont-Doherty Earth Observatory, had to look twice when he first saw the tiny strands of fiber floating in a water sample from the Hudson River. An expert in ...
Environment
Apr 17, 2024
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1
Twenty-nine of the more than 2,000 water treatment facilities in Colorado do not meet strict new federal limits on the amount of dangerous "forever chemicals" in their drinking water supplies and it will cost millions to ...
Environment
Apr 11, 2024
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1
US President Joe Biden's administration on Wednesday announced the first nationwide tap water standards to protect the public from toxic "forever chemicals" linked to serious health harms ranging from cancers to developmental ...
Environment
Apr 10, 2024
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95
Researchers at the University of California San Diego School of Global Policy and Strategy have developed a new method to predict the financial impacts climate change will have on agriculture, which can help support food ...
Environment
Apr 8, 2024
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61
In Bangladesh, annual flooding affects millions of people, particularly those in rural riverine communities. These communities have developed resilience strategies over generations to cope with flooding and erosion, but with ...
Environment
Mar 27, 2024
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1
Researchers have developed a new machine learning system to improve the accuracy and efficiency of sewer-river system models. This innovative approach, detailed in an article published in Environmental Science and Ecotechnology, ...
Environment
Mar 14, 2024
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23
In the next decade, space agencies will expand the search for extraterrestrial life beyond Mars, where all of our astrobiology efforts are currently focused. This includes the ESA's JUpiter ICy moon's Explorer (JUICE) and ...
Planetary Sciences
Mar 14, 2024
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34
Declining atmospheric sulfur dioxide levels might be related to the global rise in Legionnaires' disease—a severe form of pneumonia caused by inhaling the pathogenic bacteria Legionella. So reports a new University at Albany ...
Environment
Mar 12, 2024
2
65
A team of researchers from Bohai University in China has designed and synthesized a bifunctional catalyst that can solve the environmental pollution caused by mustard gas and phenolic compounds. They synthesized this bifunctional ...
Analytical Chemistry
Mar 11, 2024
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2
Tap water (running water) is part of indoor plumbing, which became available in the late 19th century and common in the mid-20th century.
The provision of tap water requires a massive infrastructure of piping, pumps, and water purification works. The direct cost of the tap water alone, however, is a small fraction of that of bottled water, which can cost from 240 to 10,000 times as much for the same amount.
The availability of clean tap water brings major public health benefits. Usually, the same administration that provides tap water is also responsible for the removal and treatment before discharge or reclamation of wastewater.
In many areas, chemicals containing fluoride are added to the tap water in an effort to improve public dental health. This remains a controversial issue in the health, freedoms and rights of the individual. See water fluoridation controversy.
Tap water may contain various types of natural but relatively harmless contaminants such as scaling agents like calcium carbonate in hard water and metal ions such as magnesium and iron, and odoriferous gases such as hydrogen sulfide. Local geological conditions affecting groundwater are determining factors of the presence of these substances in water.
Occasionally, there are health concerns regarding the leakage of dangerous biological or chemical contaminating agents into local water supplies when people are advised by public health officials not to drink the water, and stick to bottled water instead. An example is the recent discovery of potentially hazardous nitrates in the public water supply in Phoenix, Arizona.
This text uses material from Wikipedia, licensed under CC BY-SA
