Washington: 14 percent of chronic childhood asthma could be due to exposure to traffic pollution, a new study has found.The study of 10 European cities suggests that air quality can trigger the breathing disorder as much as being around someone else who is smoking, which the World Health Organization has linked to 4 to 18 percent of asthma cases, CBS News reported.Asthma sufferers often flag pollution as a trigger for their symptoms.A recent survey from Asthma UK found that 66 percent of sufferers said that traffic pollution makes their asthma worse, WebMD said.29 percent of responders said that reducing air pollution was the top factor that would make their lives better, and 85 percent said that they were worried about car pollution`s effect on their and their family`s health."Air pollution has previously been seen to trigger symptoms but this is the first time we have estimated the percentage of cases that might not have occurred if Europeans had not been exposed to road traffic pollution," lead author Dr. Laura Perez, at the Swiss Tropical and Public Health Institute, said."In light of all the existing epidemiological studies showing that road-traffic contributes to the onset of the disease in children, we must consider these results to improve policy making and urban planning," she said.
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