News tagged with lead
New study links high levels of cadmium, lead in blood to pregnancy delay
Higher blood levels of cadmium in females, and higher blood levels of lead in males, delayed pregnancy in couples trying to become pregnant, according to a study by researchers at the National Institutes of Health and other ...
Feb 08, 2012 |
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Nigeria lead poisoning 'worst in modern history': HRW
A lead poisoning epidemic in Nigeria's north that has killed 400 children and affected thousands is the worst in modern history, but cleanup has not even begun in many areas, Human Rights Watch said Tuesday.
Feb 07, 2012 |
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Lead blood levels may increase smokers' risk for kidney cancer
Higher than normal levels of lead in the blood may signal a risk two times higher than average of developing renal cell carcinoma in smokers, according to medical researchers.
Jan 23, 2012 |
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California condor still threatened by human activities
A recently released scientific paper authored by San Diego Zoo Institute for Conservation Research scientists shows the leading causes of death of the endangered California condor in the wild are human influenced, with lead ...
Jan 20, 2012 |
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New research reveals legacy of lead from old inner city roads a major source of airborne contamination
(PhysOrg.com) -- An international research study published last week in the journal Atmospheric Environment has found that re-suspended roadside soil dust is a major source of atmospheric lead in old inner ...
Jan 16, 2012 |
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In tackling lead pollution, fungi may be our friends
Fungi may be unexpected allies in our efforts to keep hazardous lead under control. That's based on the unexpected discovery that fungi can transform lead into its most stable mineral form. The findings reported online on ...
Jan 12, 2012 |
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Axion sees future in lead-acid-carbon hybrid battery
(PhysOrg.com) -- Energy storage continues to be the number one question mark in discussions about the grid. We can gather enough energy from sun and wind systems but engineers still scratch their heads over ...
Technology / Energy & Green Tech
Jan 11, 2012 |
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Your home's age important for child lead exposure
(AP) -- If you've been putting off repairing a peeling windowsill, or you're thinking of knocking out a wall, listen up: Check how old your house is. You may need to take steps to protect your kids from dangerous ...
Jan 05, 2012 |
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Panel urges lower cutoff for child lead poisoning
(AP) -- For the first time in 20 years, a federal panel is urging the government to lower the threshold for lead poisoning in children.
Jan 04, 2012 |
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Mystery of car battery's current solved
(PhysOrg.com) -- Chemists have solved the 150 year-old mystery of what gives the lead-acid battery, found under the bonnet of most cars, its unique ability to deliver a surge of current.
Dec 19, 2011 |
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Lead levels in drinking water spike when copper and lead pipes joined
Lead pipes once used routinely in municipal water distribution systems are a well-recognized source of dangerous lead contamination, but new research from Washington University in St. Louis suggests that the ...
Dec 15, 2011 |
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Excess heavy metals in 10% of China's land: report
About 10 percent of China's farmland contains excessive levels of heavy metals due to contaminated water and poisonous waste seeping into the soil, state media said Monday, citing a government survey.
Nov 07, 2011 |
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Lenovo says 1H profit nearly doubled
Lenovo Group, one of the world's leading personal computer manufacturers, reported Wednesday that its profit in the first half of the year nearly doubled on strong emerging market sales.
Nov 03, 2011 |
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Lead poisoning in 2,000 children in north Nigeria
Illegal gold mining has left at least 2,000 children with lead poisoning in several northern Nigerian villages, where 400 children have already died from contamination, an official said Friday.
Oct 28, 2011 |
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UN: Leaded fuel to be gone by 2013
(AP) -- Leaded gasoline, once so widespread it was sold at U.S. pumps as "regular" fuel, is expected to be eradicated globally within two years, the United Nations Environment Program announced Thursday.
Technology / Energy & Green Tech
Oct 28, 2011 |
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Lead
Lead (pronounced /ˈlɛd/) is a main-group element with symbol Pb (Latin: plumbum) and atomic number 82. Lead is a soft, malleable poor metal, also considered to be one of the heavy metals. Lead has a bluish-white color when freshly cut, but tarnishes to a dull grayish color when exposed to air. It has a shiny chrome-silver luster when melted into a liquid.
Lead is used in building construction, lead-acid batteries, bullets and shot, weights, and is part of solder, pewter, fusible alloys and radiation shields. Lead has the highest atomic number of all stable elements, although the next element, bismuth, has a half-life so long (longer than the estimated age of the universe) it can be considered stable. Like mercury, another heavy metal, lead is a potent neurotoxin that accumulates in soft tissues and bone over time. Lead poisoning was documented in ancient Rome, Greece, and China.
For more information about Lead, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
