Real-time Air Quality Reporting System in Shanghai

Current AQI

20 20-May-2013

139	lightly polluted
	III

Primary Pollutant

PM_2.5

Health effects

Symptoms of sensitive groups may increase slightly, the general public is likely to have irritant symptoms

Cautionary Statements

The following groups should reduce prolonged or heavy outdoor exertion:People with heart or lung disease, Children and older adults.

Categories of Air Quality Index (AQI) and corresponding Air Quality Conditions
Air quality index	Air quality condition	Colors	Level of health concerns	Cautionary statements
0~50	Good		Air quality is considered satisfactory and poses little or no risk	Whole population can proceed with normal activities
51~100	Moderate		Air quality is acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of unusually sensitive individuals.	The unusually sensitive individuals should consider reducing physical activity outdoors.
101~150	lightly polluted		Symptoms of sensitive groups may increase slightly, the general public is likely to have irritant symptoms	The following groups should reduce prolonged or heavy outdoor exertion: ? People with heart or lung disease ? Children and older adults
151~200	Medially polluted		Air pollution may increase aggravation of symptoms in people of sensitive groups; everyone may begin to experience health effects of cardiopulmonary system.	The following groups should reduce prolonged or heavy outdoor exertion: ? People with heart or lung disease ? Children and older adults Everyone else should limit prolonged or heavy exertion.
201~300	Heavily polluted		Air pollution trigger a health alert, individuals with heart and lung diseases appear significant aggravation of symptoms with reduction of exercise tolerance; and general population experience health effects universally.	The following groups should avoid all physical activity outdoors: ? People with heart or lung disease ? Children and older adults Everyone else should avoid prolonged or heavy exertion.
> 300	Severely polluted		Air pollution trigger health warnings of emergency conditions. The general population appears severe symptoms with obviously reduction of exercise tolerance, and is even more likely to have cardiopulmonary diseases ahead of time.	The following groups should remain indoors and keep activity levels low: ? People with heart or lung disease ? Children and older adults Everyone else should avoid all physical activity outdoors.

Pollutant-Specific Breakpoints for Air Quality Index
Air quality index	Air quality condition	Colors	Sulfur Dioxide(SO2) 1-hour (ug/m³)	Nitrogen Dioxide(NO₂) 1-hour (ug/m³)	Inhalable particle(PM₁₀) 24-hour (ug/m³)	Carbon Monoxide(CO) 1-hour (mg/m³)	Ozone (O₃) 1-hour (ug/m³)	Ozone (O₃) 8-hour (ug/m³)	Fine particle(PM_2.5) 24-hour (ug/m³)
0~50	Good		0 ~ 150	0 ~ 100	0 ~ 50	0 ~ 5	0 ~ 160	0 ~ 100	0 ~ 35
51~100	Moderate		151 ~ 500	101 ~ 200	51 ~ 150	6 ~ 10	161 ~ 200	101 ~ 160	36 ~ 75
101~150	lightly polluted		501 ~ 650	201 ~ 700	151 ~ 250	11 ~ 35	201 ~ 300	161 ~ 215	76 ~ 115
151~200	Medially polluted		651 ~ 800	701 ~ 1200	251 ~ 350	36 ~ 60	301 ~ 400	216 ~ 265	116 ~ 150
201~300	Heavily polluted		(1)	1201 ~ 2340	351 ~ 420	61 ~ 90	401 ~ 800	266 ~ 800	151 ~ 250
> 300	Severely polluted		(1)	2341 ~ 3090	421 ~ 500	91 ~ 120	801 ~ 1000	(2)	251 ~ 350
	(1)IAQI of SO₂ will not be calculated when hourly concentration of SO₂ exceeded 800 ug/m³. In this case, IAQI of SO₂ will be calculated based on 24-hour averaging concentrations. (2)IAQI of O₃ will not be calculated when 8-hour averaging concentration of O₃ exceeded 800 ug/m³. In this case, IAQI of O₃ will be calculated based on 1-hr concentration.

Real-time Photos

Real-time concentrations of air pollutants

20 20-May-2013

* unit for CO is mg/m³	Pollutant-Specific Breakpoints for the AQI	The real-time concentrations of air pollutants have not been verified and are forreference use only.

The latest 24-hour Change of Air Quality Index (AQI)

The latest 7-day Change of Air Quality Index (AQI)

Host unit:Shanghai Environmental Monitoring Center, Shanghai Environmental Protection Bureau
Address: 1 Nandan Road, Shanghai Postcode:200030 Tel:(86) 021 24011500
Fax:86-021-64393639 Email:semc@semc.gov.cn


Good (AQI: 0~50)	Moderate (AQI: 51~100)	lightly polluted (AQI: 101~150)

Medially polluted (AQI: 151~200)	Heavily polluted (AQI: 201~300)	Severely polluted (AQI: 301~500)