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Current Water Quality News Events, Discoveries and Articles

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Technical Announcement: From Decade to Decade: What's the Status of our Groundwater Quality?
There was no change in concentrations of chloride, dissolved solids, or nitrate in groundwater for more than 50 percent of well networks sampled in a new analysis by the USGS that compared samples from 1988-2000 to samples from 2001-2010. For those networks that did have a change, seven times more networks saw increases as opposed to decreases. (2012-05-01)

Water treatments alone not enough to combat fluorosis in Ethiopia
Increased intake of dietary calcium may be key to addressing widespread dental health problems faced by millions of rural residents in Ethiopia's remote, poverty-stricken Main Rift Valley, according to a new Duke University-led study. (2012-04-27)

Ocean Acidification Linked With Larval Oyster Failure in Hatcheries
Marine researchers have definitively linked the collapse of oyster seed production at a commercial oyster hatchery in Oregon to an increase in ocean acidification. (2012-04-16)

Stoneflies mapped across Ohio, with implications for water quality and nature conservation
Stoneflies, or Plecoptera, are insects that live in water during immature stages, but are terrestrial as adults. They are among the best bioindicators of river water quality and general landscape disturbance. Anglers often model their dry and wet flies (lures) after these insects. (2012-04-13)

UN hits water target, but 1.8 billion people still drinking unsafe water, study shows
Recent widespread news coverage heralded the success of a United Nations' goal of greatly improving access to safe drinking water around the world. (2012-03-26)

Nitrate in drinking water poses health risks for rural Californians
One in 10 people living in California's most productive agricultural areas is at risk for harmful levels of nitrate contamination in their drinking water, according to a report released today by the University of California, Davis. (2012-03-13)

Carp dominate crayfish in invasive species battleground
Louisiana red swamp crayfish and common carp are two of the most invasive species on the planet yet how they interact has only recently been revealed by scientists at Queen Mary, University of London. (2012-03-07)

Costs for changing pollution criteria in Florida waters likely to exceed EPA estimates
The costs to switch to numeric criteria for limiting nutrient pollutants in Florida waters are expected to exceed U.S. Environmental Protection Agency estimates, says a new National Research Council report. (2012-03-07)

Fish exposed to SSRIs exhibit abnormal behavior, Baylor study finds
Fish exhibit abnormal behavior and lower levels of anxiety when exposed to Selective Serotonin Reuptake Inhibitors (SSRI), which are common drugs used to treat depression, among other disorders. (2012-03-07)

Nationwide Radium Testing of Groundwater Shows Most Susceptible Regions are Central U.S. and East Coast
Groundwater in aquifers on the East Coast and in the Central U.S. has the highest risk of contamination from radium, a naturally occurring radioactive element and known carcinogen. (2012-02-16)