Humans & Fine dust

Large cities are hazy with thick smog again and again. 2.1 million people die every year from the effects of fine dust. Particularly many fatalities occur in South- and East Asia. Research scientists report that fine dust particles, which may damage the lungs and cause cancer, are by far the leading cause (Professional magazine "Environmental Research Letters" 2013).
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A team headed by Jason West and Raquel Silva, compared data from 14 model calculations on the effects of ozone and six models on fine dust particles, combining the results with epidemiological models. Drawing on the study, the University of North Caroline at Chapel Hill asserts that fine dust particles are the leading cause of these fatalities.  

Around the world, pollution is increasing: millions of people die due to fine dust

Another 470.000 people die each year due to the effects of elevated ozone concentration levels. "Our study shows that pollution of ambient air is one of the greatest environmental hazards ", says co-author Jason West. The incidence of deaths is particularly high in South and Eastern Asia where population rates are high and pollution levels are up.

Reduced life expectancy

Only recently, another research team reported that life expectancy in Northern China, which is severely affected my smog, is on average 5 years less than in the southern part of the country. Based on the data from China, researchers calculated that additional pollution of 100 micrograms of dust particles per cubic meter air reduces life expectancy by 3 years.  Researchers for the professional journal PNAS say this is five times the rate suggested in conventional calculations. 
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