HOME >> BIOLOGY >> NEWS
Post-Katrina: Lead in disturbed soil may pose heightened health risk

Unsafe levels of lead have been found in soil and sediments left behind in New Orleans following Hurricane Katrina and could pose a heightened health threat to returning residents, particularly children, according to a new study published in the American Chemical Society's journal Environmental Science & Technology. In some soil samples collected from the area, lead levels were as much as two-thirds higher than what the U.S. Environmental Protection Agency considers safe, according to researchers at Texas Tech University.

High concentrations of lead in the city's soil have previously been reported by others, but lead generally remains embedded in the soil and does not easily come in contact with people unless disturbed, says study leader Steven M. Presley, Ph.D., an environmental toxicologist at Texas Tech in Lubbock. He says that severe flooding may have loosened large amounts of embedded lead and caused it to be deposited on soil surfaces, where exposure to lead particles is more likely, either through skin contact or the inhalation of aerosolized particles. Lead exposure is a particular health concern among children because it can impair the nervous system and cause developmental problems.

Although lead is the biggest health concern, the scientists also found concentrations of aldrin (an insecticide), arsenic, and seven semivolatile organic compounds that exceeded EPA Region VI safe levels and are on EPA's list of known or suspected human carcinogens. In all, the researchers analyzed the sediment and soil samples for 26 metals and more than 90 semi-volatile compounds.

In addition to sediment and soil samples, the researchers also tested water and animal tissues following the flood. Other contaminants found among samples include high levels of iron, several banned pesticides and pathogenic bacteria, but the researchers say that concentrations of most of these contaminants were unlikely to pose an immediate human health threat. Th
'"/>


14-Dec-2005


Page: 1 2 3

Related biology news :

1. Particle emissions from laser printers might pose health concern
2. Cell damage caused by brushing may help keep gums healthy
3. New studies on goats milk show it is more beneficial to health than cows milk
4. More fish oil, less vegetable oil, better for your health
5. New research shows vaginal bacteria vary among healthy women, need customized treatment
6. Fat horses face health problems
7. Biocontrol of invasive water hyacinth contributes to socioeconomic and health improvements in Africa
8. Dietary calcium is better than supplements at protecting bone health
9. Children born after PGD as healthy as those born after conventional IVF treatment
10. Chemical Society Boston meeting, Aug. 19-23, focuses on health, wellness, energy, environment
11. Conference to examine role technology can play in managing health care costs

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Post Katrina Lead disturbed soil may pose heightened health risk

(Date:3/24/2015)... Research and Markets ( http://www.researchandmarkets.com/research/hdgz7h/global_iris ) ... Recognition Market 2015-2019" report to their offering. ... to grow at a CAGR of 23.5 percent over ... present scenario and the growth prospects of the Global ... the market size, the report considers the revenue generated ...
(Date:3/24/2015)... Fla. , March 24, 2015   ... management solutions, today announced that its U.are.U ® ... accessory retailer Goorin Bros . to achieve ... biometrics-based solution secures access to the POS terminal, ... increased risk of data breaches. ...
(Date:3/23/2015)... March 23, 2015  In the 2014 fiscal year, ... conviction losses. This figure accounts for a fraction of ... The Nilson Report, exceeds $11 billion globally. The polygraph ... a crime has occurred. Investor Mark Saint Juste ... Joe Paolella partnered to administer the test ...
Breaking Biology News(10 mins):Global Iris Recognition Market 2015-2019 with 3M Cogent, Bioenable Technologies, Cross Match Technology, Iris ID Systems & Safran Dominating 2Crossmatch Fingerprint Readers Help Retailer Prevent Data Breaches at Point-of-Sale 2Polygraph Test Now Used to Protect Investors From Fraud 2Polygraph Test Now Used to Protect Investors From Fraud 3
(Date:5/5/2015)... SAN DIEGO , May 5, 2015 /PRNewswire-USNewswire/ ... treatments for congestive heart failure and other chronic ... create an independent analysis designed to reflect the ... over time. This model will be used to ... for CHF, could have on those groups of ...
(Date:5/5/2015)... , May 5, 2015  A group of ... of the Coma Research Institute, a non-profit organization dedicated ... and families suffering from disorders of consciousness.  ... http://photos.prnewswire.com/prnh/20150504/213779LOGO   ... of consciousness, in which no voluntary actions can be ...
(Date:5/5/2015)... --Research and Markets ( http://www.researchandmarkets.com/research/x5gjj3/clinical ) ... Laboratory, Molecular Diagnostics and Genomic Testing Services Market ... Version" report to their offering. ... molecular diagnostics and pharmacogenics hold the promise of ... is moving out of the national and regional ...
(Date:5/5/2015)... May 5, 2015  Orexigen Therapeutics, Inc. (Nasdaq: ... quarter 2015 on Friday, May 8 before the market ... webcast and conference call at 8:30 a.m. Eastern Time ... may be accessed by phone by calling (800) 708-4540 ... webcast can be accessed live on the Investors section ...
Breaking Biology Technology:RAND Health Advisory Services modeling heart failure patient outcomes to inform potential impact of Renova Therapeutics lead product candidate 2RAND Health Advisory Services modeling heart failure patient outcomes to inform potential impact of Renova Therapeutics lead product candidate 3Biotechnology Executives and Medical Doctors Team Up to Tackle Coma and Disorders of Consciousness 2Biotechnology Executives and Medical Doctors Team Up to Tackle Coma and Disorders of Consciousness 3Biotechnology Executives and Medical Doctors Team Up to Tackle Coma and Disorders of Consciousness 4Biotechnology Executives and Medical Doctors Team Up to Tackle Coma and Disorders of Consciousness 5Global Clinical Laboratory, Molecular Diagnostics and Genomic Testing Services Market Trends and Forecast 2015 to 2019 2
Cached News: