Health risks for those living within 500m of main roads

Health risks for those living within 500m of main roads
http://www.theage.com.au/victoria/health-risks-for-those-living-within-500m-of-main-roads-20100619-yo2h.html  

"CHILDREN living within 500 metres of a major road or freeway are at greater risk of developing asthma, while adults face an increased likelihood of lung and heart-related illnesses, a landmark health study has revealed.

The largest international study on vehicle air pollution and health research has found that traffic pollution within a 500-metre radius of a major thoroughfare was likely to exacerbate asthma in children, trigger new asthma cases across all ages, impair lung function in adults, and could cause cardiovascular illness and death."