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:


(Date:6/14/2017)... June 15, 2017  IBM (NYSE: IBM ) is introducing ... event dedicated to developing collaboration between startups and global businesses, ... 15-17. During the event, nine startups will showcase the solutions ... various industries. France ... market, with a 30 percent increase in the number of ...
(Date:5/16/2017)... --  Bridge Patient Portal , an enterprise patient ... Systems , an electronic medical record solutions developer ... a partnership to build an interface between the ... products, including Centricity Practice Solution (CPS), Centricity Business ... integrations will allow healthcare delivery networks using GE ...
(Date:4/19/2017)... York , April 19, 2017 ... as its vendor landscape is marked by the presence ... market is however held by five major players - ... Together these companies accounted for nearly 61% of the ... the leading companies in the global military biometrics market ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... 11, 2017 , ... Disappearing forests and increased emissions are the main causes ... each year. Especially those living in larger cities are affected by air pollution related ... the most pollution-affected countries globally - decided to take action. , “I knew I ...
(Date:10/11/2017)... Florida (PRWEB) , ... October 11, 2017 , ... ... Drug Administration (FDA) has granted orphan drug designation to SBT-100, its novel anti-STAT3 ... for the treatment of osteosarcoma. SBT-100 is able to cross the cell membrane ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... targeted antibody-drug conjugate (ADC) therapeutics, today confirmed licensing rights that give it ... Nanoparticle), a technology developed in collaboration with Children’s Hospital Los Angeles (CHLA). ...
(Date:10/10/2017)... ... 10, 2017 , ... Dr. Bob Harman, founder and CEO of VetStem ... The event entitled “Stem Cells and Their Regenerative Powers,” was held ... Harman, DVM, MPVM was joined by two human doctors: Peter B. Hanson, M.D., Chief ...
Breaking Biology Technology:
Cached News: