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WHO: more than 80% of the world's urban air pollution

DATE:2016-5-20 9:30:53
Singapore Lianhe Zaobao 13 daily, said the report published by the World Health Organization shows that over 80% of the global urban air pollution exceeded, which increases the risk of urban residents infected with lung cancer and other deadly diseases.
Reported that, according to the World Health Organization yesterday updated urban air quality database. In 103 countries and regions worldwide 3000 multiple monitoring air quality in the city, the pollution levels of the more than 80% in urban air particulate matter (PM10) and fine particulate matter (PM2.5) more than the world health organization built the standard Yee.
Sulfate and nitrate of silver and black carbon pollutants composition of the particulate matter and fine particulate matter, including, they can penetrate deep into the lungs and cardiovascular system and increase the risk of stroke, heart disease, lung cancer and asthma, acute and chronic respiratory disease risk.
Who said that over the past 2 years, with more cities began to measure the level of air pollution, the size of the database has almost doubled.
New database covers China 210 large, medium and small cities of particulate matter and fine particulate matter data, including Shijiazhuang, Jinan, Xingtai are the particulate matter pollution is the most serious city, Xingtai, Baoding, Shijiazhuang is the fine particulate matter pollution is the most serious city.
In the population of more than 14 million of the world's mega cities, 2011 to 2015 monitoring data show that Delhi, Cairo, Dhaka, Calcutta, Mumbai is the world's highest level of particulate pollution of the 5 major cities.
The most polluted city in the world is Zaboro, the city of Iran, which has a number of months of dust storms every summer. In the top five of the remaining 4 city is India's Ann La Abad Buttler and Raipur, Gwalior.
Media quoted the world health experts as saying that India is facing a huge challenge, but they also pointed out that there are many countries did not establish a monitoring system, and therefore can not be reflected in the rankings.
Data show that the low - and middle-income countries in urban air pollution problems in higher income countries are much more serious. In more than 100 thousand of the population of the city, the level of air pollution over the world health standard of the city, there are 98% in low-income countries, 56% in high-income countries.

Who stressed that particulate matter and fine particulate matter concentration caused by environmental pollution is a major risk to health, leading to the world's about 3000000 premature deaths each year. But if the particulate matter pollution from 70 micrograms per cubic meter down to 20 micrograms, due to air pollution related deaths could be reduced by about 


Responsibility editor:Hao Sun

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