During this air pollution is believed to cause respiratory only, despite many studies that suggest pollution is also a risk factor for death from other chronic diseases. Even a study of air pollution exposes responsible for over two million deaths each year around the world.
The study also estimated that 2.1 cases of deaths each year throughout the world are associated with particles so small that come from pollution but can get into the lungs and cause health problems to premature death from heart disease or lung disease lung such as lung cancer.
"Most of the global deaths due to pollution occurred in East Asia and South Asia whose population is large but air pollution is also severe," said researcher Jason West, an assistant professor of environmental science at the University of North Carolina, Chapel Hill, as reported by LiveScience, Monday (15 / 7/2013).
"Air pollution is actually an important issue. Fact, this is the factor could be the most important environmental risk to health. From this study also proved that the improved air quality in parts of the world may increase the life expectancy of the world population," he added.
While a number of studies predict that climate change is making the air pollution become more deadly, but a new study finds climate change is just a small effect in the case of deaths related to air pollution.
Because of pollution and climate interact in different ways. Factors related to climate such as temperature and humidity can affect the reaction rate of the particles in the air, which in turn determines the formation of pollutants; but the actual effect on the accumulation or buildup of pollutants are rainfall, the researchers say.
After all of the analysis the researchers note that climate change is only caused 1,500 deaths each year due to ozone pollution and 2,200 deaths per year due to pollution particles into the lungs.
For the purposes of this study, researchers used a climate model to estimate the concentration of air pollution around the world, especially in 1850 (pre-industrial) and the year 2000. Later observations by focusing on two of this year researchers can determine the proportion of air pollution caused by humans (related to industrialization).
"Researchers also utilize information from several previous studies that discuss the relationship between air pollution and health, to determine how many deaths were related to the concentration of particulate air pollution," said West.
The findings of this study were considered to be significant with a condition that occurs later because unlike previous studies this study using several climate models, not just one. Even so, it uses information from previous studies, this study estimates the resulting uncertainty has also similar to previous studies.
"Moreover, most of the studies conducted in the U.S. so if applied globally as well as new studies are done, it will create uncertainty," added West.
The study has been published in the journal Environmental Research Letters.
