Our world is increasingly polluted.
In the largest report on air quality already made, the World Health Organization warns: all this pollution kills almost as much as cancer. Unsurprisingly pollution has increased year by year, worldwide. But now, the World Health Organization (WHO) met alarming data: 92% of the world population lives in cities where air quality is worse than the recommended by the organization.
The conclusion came from the last survey by the WHO – in partnership with the University of Bath, UK – the largest and most comprehensive study ever done on the subject. This for a very simple reason: it is the first time that most cities in the world can gather enough data for a broader analysis. The information is also accurate because they were collected both by satellite and by scientists here on Earth. Then, from these data, WHO has built an interactive map that shows the size of the population of each city and pollution levels…
92% of the world breathe polluted air
Poor air quality is a global health problem. Every year, 3 million people die from diseases caused by exposure to defilement – are about 11% of global deaths (just to give an idea, cancer deaths represent 13%). The most common diseases caused by air impurities include lung cancer, heart disease, strokes, and blockage or infection of the respiratory tract, affecting mainly women, children and elderly. But it tightens even in developing countries: 90% of these deaths occur in those nations, especially those who are in Southeast Asia and Africa, as shown in the map.
As you may already be bald to know all this pollution comes from cars and other means of transport that use fuel as a form of energy, burning of waste and industrial activities. But there are also other sources, including natural: an example are the dust storms, which occur mainly in regions close to deserts. Now, WHO scientists are trying to come up with a way to improve the overall air quality – some ideas are planting more trees, replace polluting means of transport by electric vehicles, inspect the garbage disposal, so there is no burning, and stay over the large factories so that they pollute the minimum.
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