If you want to give birth to a healthy baby just in time, then the period of pregnancy are moving to live in the cottage. Such advice can be given on the results of a study conducted by researchers from the University of California, led by Dr. Beaty Ritz. They found that living in big cities expectant mothers a third more at risk of becoming victims premature birth .
The most important reason for this is air pollution in connection with automobile exhausts. Machinery saturate the air of the city polycyclic aromatic hydrocarbons (PAH), a byproduct of gasoline, which directly increases the risk of premature birth by 30%. At 21% it grows due to exposure to ammonium nitrate is used as the product for agriculture and industry, and benzene and diesel increase the risk by 10%.
The researchers noted that the maximum concentration of pollutants in the atmosphere of the city is celebrated in winter and lowest in summer. Also located on the coast of the city are more fresh air than those that are far from the big water.
" Air pollution It has long been associated with underweight infants and premature birth - Says Dr. Ritz. - Our research has shown that traffic-related PAH emissions cause the greatest harm to the future mothers, it is from these substances increases the risk of preterm birth as possible. But the influence of ammonium nitrate indicates that the secondary air pollutants also have a negative impact on the health of unborn children. "
These studies were based on analysis of 100 thousand births to residents in semikilometrovom radius around air quality measuring stations various regions of California. The capital of the state of Los Angeles is known for its huge smog.
Pregnancy and Gynecology
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