AQI PM2.5
AQI PM10
| AQI | Air Pollution Level | Health Implications | Measures to be Taken |
|---|---|---|---|
| 0-50 | Good | Air quality is considered satisfactory, and air pollution poses little or no risk | Daily activities not affected |
| 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. | Daily activities not affected |
| 101-150 | Unhealthy for Sensitive Groups | Members of sensitive groups may experience health effects. The general public is not likely to be affected. | Daily activities not affected |
| 151-200 | Unhealthy | Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects | Daily activities not affected. Students with respiratory problems can, with parent and nurse permission, be ‘excluded’ from active participation in PE and/or to remain indoors during break. Teachers report any signs of respiratory unwellness in children to the nurse immediately. |
| 201-250 | Very Unhealthy | Health warnings of emergency conditions. The entire population is more likely to be affected. | 1. All PE lessons will be modified and students will not undertake strenuous activities if lessons are continued to be outside. 2. Students will be allowed outside to play during breaks but will not undertake strenuous activities. Students with respiratory problems will have the option of staying indoors. 3. Students at ECC will be allowed to go outside under the conditions as mentioned under 2 and for no longer than 20 minutes. 4. Any school outdoor community event will be modified. 5. Teachers report any signs of respiratory unwellness in children to the nurse immediately. 6. Outdoor school based activities held in Tianjin will be modified. 7. Outdoor school based activities held out of Tianjin go ahead as planned (based on conditions in that city). |
| 251-300 | Very Unhealthy | Health warnings of emergency conditions. The entire population is more likely to be affected. | 1. All PE lessons will be modified and carried out indoors. 2. Students will remain indoors during breaks. 3. Any school outdoor community event will be modified. 4. Teachers report any signs of respiratory unwellness in children to the nurse immediately. 5. Outdoor school based activities held in Tianjin will be modified or cancelled. 6. Outdoor school based activities held out of Tianjin go ahead as planned (based on conditions in that city). |
| 300+ | Hazardous | Health alert: everyone may experience more serious health effects | 1. All PE lessons will be modified and carried out indoors. 2. Students will remain indoors during break time. 3. All field trips that involve any sort of physical activity will be postponed. 4. Any outdoor community event will be cancelled. 5. Teachers report any signs of respiratory unwellness in children to the nurse immediately. 6. Outdoor school based activities held in Tianjin will be cancelled. 7. Outdoor school based activities held out of Tianjin to be decided upon on an individual basis. |