HOME >> BIOLOGY >> NEWS
Ozone levels may raise risk of underweight births

LOS ANGELES (Nov. 16, 2005)-Babies born to women exposed to high ozone levels during pregnancy are at heightened risk for being significantly underweight, according to researchers at the Keck School of Medicine of the University of Southern California.

Women who breathe air heavily polluted with ozone are at particular risk for having babies afflicted with intra uterine growth retardation-which means babies only fall within the 15th percentile of their expected size. The findings were published early online on the Web site of Environmental Health Perspectives, the journal of the National Institute for Environmental Health Sciences (NIEHS).

"These findings add further evidence that our ozone standards are not protecting the most vulnerable members of the population," says Frank D. Gilliland, M.D., Ph.D., professor of preventive medicine at the Keck School and the study's senior author.

Gilliland and his colleagues examined birth records from 3,901 children who were born in California between 1975 and 1987 and participated in the Children's Health Study. Researchers with the USC-led Children's Health Study have monitored levels of major pollutants in a dozen Southern California communities since 1993, while following the respiratory health of more than 6,000 students in those communities.

The researchers gathered data such as the children's gestational age and birth weight, as well as their mothers' zip code of residence at birth. Then they determined levels of ozone, carbon monoxide and other pollutants in the air in each zip code of residence during each mother's pregnancy. Researchers only considered full-term births for the study and controlled for factors such as mothers' smoking habits.

They found that each increase of 12 parts per billion (ppb) of average daily ozone levels over a mother's entire pregnancy was associated with a drop of 47.2 grams (g)-about a tenth of a pound-in a baby's birth weight. And the association w
'"/>

Contact: Kathleen O'Neil
323-442-2830
University of Southern California
16-Nov-2005


Page: 1 2 3

Related biology news :

1. Eat fish -- especially if you drink high levels of alcohol
2. 1 in 4 NYC adults has elevated blood mercury levels
3. Manganese levels increase in scrapie-infected sheep before clinical symptoms develop
4. Cord blood may preserve insulin levels in children with type 1 diabetes
5. Children of smokers have more than 5 times higher levels of a nicotine toxin
6. Premature births may be linked to seasonal levels of pesticides and nitrates in surface water
7. Urban sediments after Hurricanes Katrina, Rita contained high levels of contaminants
8. Link found between immune system and high plasma lipid levels
9. UC Davis study finds high arsenic levels in herbal kelp supplements
10. Preventing obesity in children -- research highlights physical activity levels
11. Regardless of global warming, rising CO2 levels threaten marine life

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Ozone levels may raise risk underweight births

(Date:7/23/2014)... The drought that has the entire country in its grip ... may also be responsible for the proliferation of a heat-loving ... rivers and hot springs, which the drought has made warmer ... died of an infection caused by this parasite after swimming ... the nose of an individual and travels to the brain. ...
(Date:7/23/2014)... available in German . ... cells, drive metabolic processes and transmit signals. To perform ... Scientists at the Max Planck Institute for Developmental Biology ... constructed of similar amino acid chains even when their ... that exist today arose from common precursors. Presumably, in ...
(Date:7/23/2014)... 2014 BioCatch, the global leader ... it has been named in Gartner,s Market Guide for ... Gartner,s well-known Magic Quadrant for Web Fraud Detection. ... of several vendors to deliver passive biometric analysis and ... standard feature of at least 30% of one-stop fraud ...
Breaking Biology News(10 mins):Diseases of another kind 2Protein evolution follows a modular principle 2BioCatch Featured in Gartner's 2014 Online Fraud Detection Market Guide 2BioCatch Featured in Gartner's 2014 Online Fraud Detection Market Guide 3
(Date:7/23/2014)... July 23, 2014 ... of Trendlines Agtech , announced it has ... Israel,s leading agricultural thermoplastics applications companies. ... Valentis,s technology combines nanocrystalline cellulose (NCC), a biodegradable, ... additional nanoparticles to produce highly improved polymeric films. ...
(Date:7/23/2014)... BRUSSELS , July 23, 2014 regulated ... its research and development pipeline with positive topline ... brivaracetam . This study was designed to evaluate ... (100 and 200 mg/day, without titration) compared to ... patients with partial-onset seizures, not fully controlled despite ...
(Date:7/23/2014)... Calif. , July 23, 2014  Sofinnova Ventures, ... firm, today announced the closing of Sofinnova Venture Partners ... and in excess of the initial fund target of ... entrepreneurs build successful biotechnology companies. Consistent with recent funds, ... promising later stage clinical programs, along with select investments ...
(Date:7/23/2014)... 23, 2014 OncLive® is pleased ... has joined its Strategic Alliance Partnership program. ... program, UNC Lineberger will have the opportunity to ... of its cutting-edge research initiatives, community-directed cancer prevention ... will work with OncLive to educate their peers ...
Breaking Biology Technology:Valentis Nanotech Signs MOU to Integrate Technology in Thermoplastics Production 2Major advance in UCB pipeline: positive topline Phase 3 results for brivaracetam in epilepsy patients with partial-onset seizures 2Major advance in UCB pipeline: positive topline Phase 3 results for brivaracetam in epilepsy patients with partial-onset seizures 3Major advance in UCB pipeline: positive topline Phase 3 results for brivaracetam in epilepsy patients with partial-onset seizures 4Major advance in UCB pipeline: positive topline Phase 3 results for brivaracetam in epilepsy patients with partial-onset seizures 5Major advance in UCB pipeline: positive topline Phase 3 results for brivaracetam in epilepsy patients with partial-onset seizures 6Major advance in UCB pipeline: positive topline Phase 3 results for brivaracetam in epilepsy patients with partial-onset seizures 7Sofinnova Raises $500 Million Biotech Venture Fund 2OncLive Expands Its Strategic Alliance Partnership Program With the Addition of UNC Lineberger Comprehensive Cancer Center 2OncLive Expands Its Strategic Alliance Partnership Program With the Addition of UNC Lineberger Comprehensive Cancer Center 3
Cached News: