World Air Pollution Statistics

About the Air Quality Levels

AQI	Air Pollution Level	Health Implications	Cautionary Statement (for PM2.5)
0 - 50	Good	Air quality is considered satisfactory, and air pollution poses little or no risk	None
51 -100	Moderate	Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.	Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
101-150	Unhealthy for Sensitive Groups	Members of sensitive groups may experience health effects. The general public is not likely to be affected.	Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
151-200	Unhealthy	Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects	Active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion
201-300	Very Unhealthy	Health warnings of emergency conditions. The entire population is more likely to be affected.	Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
300+	Hazardous	Health alert: everyone may experience more serious health effects	Everyone should avoid all outdoor exertion

To know more about Air Quality and Pollution, check the wikipedia Air Quality topic or the airnow guide to Air Quality and Your Health.

For very useful health advices of Beijing Doctor Richard Saint Cyr MD, check www.myhealthbeijing.com blog.

Worst
	Shanting EPA, Zaozhuang, Shandong (枣庄山亭区环保局) on 2018-10-18 16:00:00 graph 0	999
	Zhoucun sanjin Group, Zibo, Shandong (淄博周村三金集团) on 2018-10-18 15:00:00 graph 1	999
	Narod_op, Moscow, Moscow (Народного ополчения, Москва) on 2018-10-18 13:10:00 graph 2	920
	Santa Fe, Jalisco, Mexico on 2018-10-18 16:00:00 graph 3	895
	Guardo, Palencia, Spain on 2018-10-18 14:00:00 graph 4	894
	Usak, Turkey on 2018-10-18 17:00:00 graph 5	829
	Beograd Stari grad, Serbia on 2018-10-18 14:00:00 graph 6	571
-	Rotterdam on 2018-10-18 16:00:00 graph 7	512
	Zwartewaalstraat, Rotterdam Zuid on 2018-10-18 16:00:00 graph 8	512
	Ankara (Sincan), Turkey on 2018-10-18 17:00:00 graph 9	511

Best
	Rathaus, Regensburg, Germany on 2018-10-18 14:00:00 graph 0	1
	Antibes Jean Moulin, PACA, France on 2018-10-18 15:00:00 graph 1	1
	Glasgow Kerbside, United Kingdom on 2018-10-18 14:00:00 graph 2	1
	Palos, Palos De La Frontera, Spain on 2018-10-18 13:00:00 graph 3	1
	Smestad, Oslo, Norway, Norway on 2018-10-18 14:00:00 graph 4	1
	Karlsruhe-Nordwest, Germany on 2018-10-18 15:00:00 graph 5	1
	Sort, Catalunya, Spain on 2018-10-18 13:00:00 graph 6	1
	Datteln-Hagem, Germany on 2018-10-18 13:00:00 graph 7	1
	Weil am Rhein, Germany on 2018-10-18 15:00:00 graph 8	1
	Reutlingen, Germany on 2018-10-18 15:00:00 graph 9	1

Top 10 Best and Worst Air Quality in World