Navigation Links
First measurements of HAAs in urine of swimmers and pool workers
Date:7/27/2011

The first scientific measurements in humans show that potentially harmful haloacetic acids (HAAs) appear in the urine of swimmers within 30 minutes after exposure to chlorinated water where HAAs form as a byproduct of that water disinfection method. Reported in the ACS journal Environmental Science & Technology, the study found that HAAs also appeared in the urine of swimming pool workers.

Mercedes Gallego and M.J. Cardador point out that government regulations in the United States and Europe limit the levels of HAAs that can appear in drinking water, also purified mainly by chlorination. The limits stem from research suggesting that elevated levels of HAAs in municipal drinking water supplies may be linked to birth defects and a higher incidence of some cancers. However, few studies have examined HAA exposure from swimming pools, where water may contain higher levels due to recirculation systems that lengthen water's exposure to chlorine and provide more time for HAAs to form.

Gallego and Cardador measured HAA levels in the urine of 49 volunteers who swam in or worked around an indoor and outdoor pool. "The results showed that HAAs appeared 20-30 minutes after exposure and were eliminated [from the body] within three hours," they note. Over 90 percent of the exposures probably occurred as a result of swallowing pool water. Far fewer HAAs were inhaled or taken in through the skin. Children were more likely than adults to have a high concentration of HAAs after swimming and swimmers accumulated HAAs almost four times as fast as people working around the pool.


'/>"/>

Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
Source:Eurekalert

Page: 1

Related medicine news :

1. St. Michaels North America first to use novel blood-cleaning procedure for kidney transplant
2. First-ever review finds smoking causes serious birth defects
3. Former dean first from UH to be inducted into Optometry Hall of Fame
4. Scientists develop first ever drug to treat Celtic gene in cystic fibrosis sufferers
5. University of Louisville surgeons perform first prosthetic bypass graft with patients stem cells at point-of-care
6. First X-ray lasing of SACLA
7. Swine flu spread was much wider than first thought, scientists say
8. UAB first in US with cell-processing workstation
9. Historic first images of rod photoreceptors in the living human eye
10. First of its kind study conducted by BUSM finds women as resilient to combat stress as men
11. Vaccine first to show improved survival rates for metastatic melanoma
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/12/2016)... ... February 12, 2016 , ... Fixed ... p.m. – 3:00 p.m. EST, http://www.fdanews.com/fixeddosecombination , Fixed ... pharmaceutical products, garnering increased attention from all stakeholders in the development of new ...
(Date:2/12/2016)... ... February 12, 2016 , ... T.E.N., a ... closed for the ISE Southeast Awards 2016. Finalists and winners of the ISE® ... Southeast Executive Forum and Awards Gala on March 15, 2016 at the Westin ...
(Date:2/12/2016)... ... ... Fisher House Foundation Chairman and CEO Kenneth Fisher joined Governor Brian Sandoval, ... Scott Bensing, and Peggy Kearns Director, VA Southern Nevada Healthcare System yesterday to dedicate ... be the first Fisher House in Nevada, and will provide free lodging for families ...
(Date:2/12/2016)... ... , ... Erlanger Agency has announced a new partnership in its ongoing community ... on the fight against breast cancer, fundraising for a local woman named Carmen, who ... Carmen is a loving single mother of two boys who also serves as caregiver ...
(Date:2/12/2016)... ... February 12, 2016 , ... For Coast Dental dentist Everet ... RDH, and dental assistant Terrell Moore shortly before 7 a.m. to volunteer at Friday’s ... professionals, donating their time and skills to help hundreds of uninsured and underinsured people ...
Breaking Medicine News(10 mins):
(Date:2/11/2016)... , Feb. 11, 2016 ... Companion Diagnostics in Personalized Medicine and Cancer Therapy. ... - High-Growth Diagnostic Testing Markets. - Key Diagnostic ... - Molecular Diagnostics in Genetic Testing. - ... Diagnostics Markets. - Over-the-Counter Diagnostic Products World Markets. ...
(Date:2/11/2016)... 2016  Kindred Biosciences, Inc. (NASDAQ: KIN ), ... lives of pets, today announced the submission to FDA ... Drug Application (NADA) for Zimeta™ (dipyrone injection, KIND-012).  Positive ... Zimeta for the control of pyrexia (fever) in horses ... --> --> The Chemistry, Manufacturing, and ...
(Date:2/11/2016)... 2016  NOIT™ Research LLC, a private, leading-edge autism ... campaign to assist needy families in obtaining one of ... between February 10, 2016 and March 31, 2016, the ... The NOIT is an auditory stimulus that plays a ... skills. Beth Shier , NOIT Research ...
Breaking Medicine Technology: