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Pollutants from coal-burning stoves strongly associated with miscarriages in Mongolia
Date:4/23/2014

Burning coal for domestic heating may contribute to early fetal death according to a new study by experts from The Saban Research Institute of Children's Hospital Los Angeles and Ulaanbaatar, Mongolia the coldest capital city in the world.

In a paper published today in the journal BMC Pregnancy and Childbirth, researchers report "alarmingly strong statistical correlations" between seasonal ambient air pollutants and pregnancy loss in Ulaanbaatar (UB), Mongolia.

UB has one of the highest levels of air pollution of all world capitals, with sulfide dioxide and particulate matter levels during winter months, which are up to 23 times World Health Organization standards. Air pollution in winter is largely caused by coal burning in Ger stoves (Ger refers to the traditional round, felt tent used as a portable residence by nomadic Mongolian people, but such stoves are also used in wooden houses within the Ger district.)

The scientists, led by David Warburton, OBE, DSc, MD, MMM, FRCP, FRCS, FRCPCH, professor of Pediatrics and Surgery at The Saban Research Institute of Children's Hospital Los Angeles and Keck School of Medicine at the University of Southern California, examined the association between spontaneous abortion (miscarriages) and seasonal variation of air pollutants. The measurements were gathered near the National Center for Maternal and Child Health (NCMCH)which provides the majority of obstetric and gynecological services in UBand compared to the medical records of 1,219 women in the region who had been admitted to the hospital between 2009 and 2011 due to fetal death prior to 20 weeks gestational age.

"We found that the incidence of miscarriage revealed a striking seasonal pattern of variation," said Warburton.

While the overall rate of miscarriages (occurring in approximately 15 to 20 percent of pregnancies) reported in UB is similar to that of Western countries, including the United States, th
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Contact: Ellin Kavanagh
ekavanagh@chla.usc.edu
323-361-8505
Children's Hospital Los Angeles
Source:Eurekalert  

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Pollutants from coal-burning stoves strongly associated with miscarriages in Mongolia
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