Jet aircraft exhaust linked to preterm births

Jet aircraft exhaust linked to preterm births
UCLA researchers found that mothers who lived within the red area adjacent to LAX were 14% more likely to have a pregnancy that ended in a preterm birth. Those in the yellow area were 8% percent more likely than those in areas farther from the airport.

A study from the UCLA Fielding School of Public Health has found that pregnant women exposed to high levels of ultrafine particles from jet airplane exhaust are 14% more likely to have a preterm birth than those exposed to lower levels.

The researchers examined exposure among women living near Los Angeles International Airport, in an area that includes neighborhoods in Los Angeles, El Segundo, Hawthorne, Inglewood and several other communities inland from the airport.

"The data suggest that airplane pollution contributes to preterm births above and beyond the main source of air pollution in this area, which is traffic," said Dr. Beate Ritz, a professor in the departments of epidemiology and environmental health sciences at the Fielding School.

Preterm is associated with complications such as immature lungs, difficulty regulating body temperature, poor feeding and slow weight gain.

The research team, co-led by Ritz and Scott Fruin of the Keck School of Medicine at the University of Southern California, examined records for all births—a total of 174,186 —between 2008 and 2016 to mothers living within nine miles (15 km) of LAX. They divided the overall area into four sections based on the amount of ultrafine particle, or UFP, pollution from jet exhaust, with the section nearest the airport experiencing the highest exposure.

After adjusting for traffic-related air pollution and other variables that may affect the risk of , including airport-related noise and the mother's age, and race, they found that expectant mothers in the quarter with the highest average ultrafine particle exposure had 14% higher odds of a preterm birth than mothers in the quarter with the lowest exposure.

"Nearly 2 million people live within a 10-mile radius of LAX, many of whom are exposed to elevated levels of aircraft-origin UFPs," said Sam Wing, a scholar at the Fielding School who also worked on the study.

The research is summarized in an article published July 22 in the journal Environmental Health Perspectives and is based on a lengthy study from the spring 2020 edition of the journal. Other authors include Timothy Larson and Sarunporn Boonyarattaphan of the University of Washington and Neelakshi Hudda of Tufts University.


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More information: Lindsey Konkel. Move Over, Traffic: Aircraft Emissions and Preterm Birth, Environmental Health Perspectives (2020). DOI: 10.1289/EHP7161

Sam E. Wing et al. Preterm Birth among Infants Exposed to in Utero Ultrafine Particles from Aircraft Emissions, Environmental Health Perspectives (2020). DOI: 10.1289/EHP5732

Citation: Jet aircraft exhaust linked to preterm births (2020, July 23) retrieved 4 August 2020 from https://medicalxpress.com/news/2020-07-jet-aircraft-exhaust-linked-preterm.html
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