| 257 | Very Unhealthy on Wednesday, May 20th 2026, 09:00 am |  |
Cities with the worst air quality
| # | AQI | City |
|---|---|---|
474 | ||
347 | ||
320 | ||
312 | ||
291 | ||
191 | ||
185 | ||
178 | ||
177 | ||
177 | ||
175 | ||
173 | ||
168 | ||
163 | ||
156 | ||
155 | ||
154 | ||
152 | ||
151 | ||
149 | ||
142 | ||
142 | ||
141 | ||
139 |
Cities with the best air quality
| # | AQI | City |
|---|---|---|
25 | ||
44 | ||
46 | ||
55 | ||
59 | ||
59 | ||
61 | ||
91 | ||
93 | ||
97 | ||
99 | ||
99 | ||
112 | ||
114 | ||
117 | ||
117 | ||
129 | ||
129 | ||
129 | ||
132 | ||
134 | ||
137 | ||
139 |
Good | Moderate | Unhealthy for sensitive groups | Unhealthy | Very Unhealthy | Hazardous |
If you want to stay informed about the Air Quality monitoring project, please register with the form below:
Our GAIA air quality monitors are very easy to set up: You only need a WIFI access point and a USB compatible power supply.
Once connected, your real time air pollution levels are instantaneously available on the maps and through the API.
The station comes with a 10-meter water-proof power cable, a USB power supply, mounting equipment and an optional solar panel.
| | |
| or let us find your nearest air quality monitoring station |
Africa
🇧🇼 Botswana 🇧🇫 Burkina Faso 🇨🇫 Central African Republic 🇨🇩 Congo, The Democratic Republic Of 🇪🇬 Egypt 🇬🇶 Equatorial Guinea 🇪🇹 Federal Democratic Republic of EthiopiaAntarctica
🇦🇶 Antarctica 🇧🇻 Bouvet Island 🇹🇫 French Southern Territories 🇭🇲 Heard Island and McDonald Islands 🇬🇸 South Georgia and the South Sandwich IslandsAsia
🇧🇩 BangladeshEurope
🇧🇦 Bosnia and HerzegovinaNorth America
🇦🇮 Anguilla 🇦🇬 Antigua and Barbuda 🇦🇼 ArubaOceania
🇦🇸 American Samoa 🇦🇺 AustraliaSouth America
🇦🇷 Argentine Republic| 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 |
| Celsius | |
