unhealthy levels of ambient air pollution, especially in densely populated, poor locations. The World Health Organization's (WHO … pollution is a public health crisis for South Asia, not only imposing high economic costs but also causing an estimated 2 … million premature deaths each year. The health impacts of air pollution range from respiratory infections to chronic diseases …

Health Organization considers healthy (5 micrograms per cubic meter). This pollution causes an estimated 2 million premature …