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Latest Arsenic contamination of groundwater Stories

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2009-11-15 12:31:09

Researchers in MIT's Department of Civil and Environmental Engineering believe they have pinpointed a pathway by which arsenic may be contaminating the drinking water in Bangladesh, a phenomenon that has puzzled scientists, world health agencies and the Bangladeshi government for nearly 30 years. The research suggests that human alteration to the landscape, the construction of villages with ponds, and the adoption of irrigated agriculture are responsible for the current pattern of arsenic...

2009-10-22 13:58:49

A Kansas State University geologist and graduate student are finding that the most important tools in their fieldwork on groundwater arsenic pollution are women and children armed with pamphlets and testing kits. "When going into a foreign land, you need the common people's help, support and understanding of the work you are doing," said Saugata Datta, a K-State assistant professor of geology. Datta's research examines arsenic levels in the groundwater in Bangladesh and West Bengal, India. In...

2009-08-31 00:45:50

Researchers in Austria say they found wide variations in how people absorb arsenic into their bodies. Study leader Kevin Francesconi of the University of Graz in Austria finds the ability to eliminate arsenic from the body ranging from study participants who eliminated 95 percent of the ingested arsenic to others who eliminated as little as 4 percent. The study, published in Chemical Research in Toxicology, points out standards in many parts of the world -- including areas of the United...

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2009-03-25 09:45:00

Every day, more than 140 million people in southern Asia drink groundwater contaminated with arsenic. Thousands of people in Bangladesh, Cambodia, India, Myanmar and Vietnam die of cancer each year from chronic exposure to arsenic, according to the World Health Organization. Some health experts call it the biggest mass poisoning in history. More than 15 years ago, scientists pinpointed the source of the contamination in the Himalaya Mountains, where sediments containing naturally occurring...

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2009-02-23 08:45:00

New research highlights environmental exposure to toxin Scientists from Leicester and Nottingham have devised a method for identifying levels of exposure to environmental arsenic "“ by testing toenail clippings. Arsenic occurs naturally in the environment and people can be exposed to it in several ways, for example through contaminated water, food, dust or soil. The risk of exposure is greater in certain areas of the UK where the natural geology and historic mining activities have led...

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2008-08-20 06:20:00

What's flowing in ground water could cause adult-onset diabetes, according to U.S. researchers. Arsenic is a naturally occurring poison and carcinogen found in ground water. It's odorless, tasteless, colorless, and easily soluble in water or wine. Researchers say small amounts of arsenic may gradually sicken people. They studied 788 adults' medical tests and found a nearly fourfold increase in the risk of diabetes in people with low arsenic concentrations in their urine compared to people...

2008-08-19 18:00:43

Higher levels of arsenic in the urine appear to be associated with increased prevalence of type 2 diabetes, U.S. researchers said. Millions of individuals worldwide are exposed to drinking water contaminated with inorganic arsenic, including 13 million Americans whose public water supply contains more than the U.S. Environmental Protection Agency standard of 10 micrograms per liter. Dr. Ana Navas-Acien of the Johns Hopkins Bloomberg School of Public Health in Baltimore and colleagues...

2007-08-30 06:19:19

By Zhang, Q L Gao, Nai-Yun; Lin, Y C; Xu, Bin; Le, Lin-sheng ABSTRACT: Removal of arsenic(V) from aqueous solutions was evaluated with the following three different sorption materials: coal-based activated carbon 12 x 40 (activated carbon), iron(II) oxide (FeO)/activated carbon-H, and iron oxide. The apparent characteristics and physical chemistry performances of these adsorbents were investigated by X-ray diffraction, nitrogen adsorption, and scanning electronic microscope. Also, batch...

2005-07-01 12:25:22

By Alison McCook NEW YORK (Reuters Health) - Some children with particular genetic patterns appear to process arsenic differently, suggesting that they may be more -- or less -- vulnerable to its effects, according to new study findings. Researchers found that children who carry a certain variation of the CYT19 gene tend to break down arsenic differently than children with different variations of the same gene. "If people metabolize arsenic differently," Dr. Walter T. Klimecki told...


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call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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