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China and India together contributed for more than half of the total global deaths due to air pollution in 2015, said a study by the U.S.-based Health Effects Institute (HEI).
The report showed that air pollution caused more than 4.2 million deaths in 2015, making it the fifth highest cause of death. But just two countries – India and China alone reported 2.2 million deaths, or half of the global deaths.
The institute on its website – www.stateofglobalair.org – said 92% of the world’s population lives in areas which are filled with polluted or unhealthy air. In turn, air pollution causes cancer, stroke and heart disease, as well as chronic respiratory problems such as asthma.
However, China is trying to bring down the deaths but India has a long time to go, it said. In January, a ministry spokesman told domestic media, “It is currently too early to draw conclusions about the extent of the impact of smog on health, especially its long-term impact on the body.”
The report said most of the world’s population lives in areas where air quality is unhealthy and an estimated 92% of people live in areas where fine particulate matter concentrations (small dust or soot in the air) exceed the World Health Organization’s Air Quality Guideline of 10 µg/m3.
Air pollution is a complex mixture of particles and gases and the composition varies from place to place, depending on what sources are present, including power plants, heavy industry, traffic, weather conditions, and how they mix in the atmosphere, said the organisation in it study.
