Air is the worst in the world's ten largest cities released: five in India-air quality, environmental-IT information

On May 14, in recent years, cities have been in a State of rapid development, but development problems is the decline in air quality, although more and more attention to air quality problems, but wants to improve things overnight. A few days ago, the World Health Organization cited the world's cities with the worst air and human toll.

According to who of information, environment quality worst of city is Iran of Zabol city, this city of summer almost in sandstorm among; ranking second bit and third bit of respectively is India of Assam and Allahabad; fourth bit and fifth bit is Saudi Arabia Riyadh city and Jubail city, followed subsequently of is India of butner, and Raipur, India capital New Delhi ranking Nineth, PM2.5 concentration years average for 122.

However, the World Health Organization says, this list is not complete, because some conditions worse and not counted in the city, and some cities of the country, there is no systematic monitoring of air quality, air pollution could not be assessed.

According to World Health Organization data showed that poor air quality in cities, people suffering from lung cancer and a higher risk of myocardial infarction. Every year there are more than 7 million people were forced to live in neighborhoods with poor ecological environment and death.

世界空气最差十大城市出炉：五个在印度 - 空气质量,环境 - IT资讯

5月14日消息，近年来，国内一线城市一直处于高速发展的状态，但发展带来的负面问题就是空气质量的下降，虽然目前空气质量问题越来越被重视，但想改善却非一朝一夕之事。日前，世界卫生组织列就举出了全球空气最差的城市，为人类敲响警钟。

据世界卫生组织的信息，环境质量最差的城市是伊朗的扎博勒市，这个城市的夏季几乎处于沙尘暴之中；排名第二位和第三位的分别是印度的阿萨姆邦和阿拉哈巴德；第四位和第五位是沙特阿拉伯利雅得市和朱拜勒市，紧随其后的是印度的巴特纳和赖布尔，印度首都新德里排名第九，PM2.5浓度年平均值为122。

不过，世界卫生组织也表示，这份排行榜并不完整，原因是一些环境更加糟糕的城市并没有被统计进去，还有一些国家的城市尚没有空气质量监测系统，空气污染程度无法评估。

据世界卫生组织的相关资料表明，空气质量差的城市居住的人们患肺癌和心肌梗塞的风险更高。每年都有超过七百万人由于被迫居住在生态环境差的居民区而死亡。