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:10/15/2014)... 44th Rosenstiel Award for Distinguished Work in Biomedical Science ... mechanisms of genomic instability and its implications for the ... alumnus to win the Rosenstiel Award; the first, Rod ... is the Charles A. Janeway Professor of Pediatrics and ... investigator at the Howard Hughes Medical Institute at Boston ...
(Date:10/14/2014)... new study published in Cancer Research shows ... and colon cancers—can promote the development of skin cancers ... and survival of sun-damaged skin cells. , Previously considered ... proteins called sirtuins that help regulate genomic stability and ... SIRT6 helps repair DNA damage, which can lead to ...
(Date:10/14/2014)... questions is how to produce enough food to feed ... and Agriculture Organization of the United Nations predicts that ... years to feed a growing global population, and plants ... food production. Plants—grains, cereals, fruits, vegetables, and more—feed ... research must tap into our knowledge of how plants ...
Breaking Biology News(10 mins):Brandeis awards 44th Rosenstiel Award to pioneering geneticist Fred Alt 2Two-faced gene: SIRT6 prevents some cancers but promotes sun-induced skin cancer 2Building a bridge from basic botany to applied agriculture 2Building a bridge from basic botany to applied agriculture 3
(Date:10/20/2014)... The report “Pharmacy Automation Systems ... and Labeling Systems, Table-top Counters) by End-user (Inpatient ... & Trends to 2019” analyzes and studies the ... America, Europe, Asia-Pacific, and the Rest of the ... 30 figures spread through 300 pages and in-depth ...
(Date:10/20/2014)... PARK, Calif. , Oct. 20, 2014 /PRNewswire/ ... today that the Company has signed a Notice ... of Regenerative Medicine (CIRM), effective October 1, 2014.  ... Clinical Development payments and the release of additional ... million CIRM grant award for clinical development of ...
(Date:10/20/2014)... 20, 2014  GenVec, Inc. (NASDAQ: GNVC ) ... Ph.D., from its board of directors effective on October 24, ... and served as its chairman from June 2006 to November ... and Corporate Governance and Audit Committees of the board.  ... decade of dedicated service to GenVec, and its stockholders," said ...
(Date:10/20/2014)... Earle Martin , Chief Executive ... Ellen Teplitzky, an experienced attorney specializing in business ... has joined the firm as Director of Legal ... NDA Partners provides legal services, including research, ... top law firms and their clients in cases ...
Breaking Biology Technology:Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 2Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 3Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 4Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 2Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 3Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 4Zola P. Horovitz To Retire From GenVec Board 2NDA Partners Appoints Ellen Teplitzky, JD as Director of its Legal Services Practice 2
Cached News: