AQI Reading
The PM2.5 AQI for Crescent International School, Bangkok is 29 (16.3 µg/m3) as of 2025-05-25 at 05:00.
Source: Pollution Dept. Air4Thai
Station ID: Chulalongkorn Hospital
Source: Pollution Dept. Air4Thai
Station ID: Chulalongkorn Hospital
| AQI Level | Descriptions | Actions | Communication |
| 0-100 | Good to Moderate | No action necessary. All outdoor activities proceed as usual. | No action necessary. All outdoor activities proceed as usual. |
AQI Policy & Guidelines
Crescent International School is committed to providing a safe and healthy environment. The AQI policy outlines the procedures and actions to be taken based on the air quality levels as reported by local authorities.
AQI Levels and Actions:
| AQI Level | Descriptions | Actions | Communication |
| 0-100 | Good to Moderate | No action necessary. All outdoor activities proceed as usual. | No action necessary. All outdoor activities proceed as usual. |
| 101-150 | Unhealthy for sensitive groups | Activities continue as planned. Sensitive groups should limit prolonged exposure. Wear PM2.5 certified mask. Outdoor activities may continue with caution. | No notification necessary. Sensitive groups advised to take precautions. |
| 151-200 | Unhealthy for general public | Limit outdoor activities. Sensitive groups should avoid all outdoor exertion. Outdoor activities reduced to very short duration exposure. | School to modify activities. Notification to Staff. |
| 201-300 | Very unhealthy | All outdoor activities cancelled, or moved indoors. Ensure indoor air quality is maintained. | Notification sent to all staff and school to adjust activities as needed. |
| 301-500 | Extremely unhealthy | Everyone remains indoors except for essential movement; all outdoors and off-campus activities are cancelled. | Notification sent to all staff and school with instructions to remain indoors. |
Monitoring and Communication:
The school administration will monitor AQI levels daily through reliable sources: Air4Thai Stations: Chulalongkorn Hospital & Thung Wat Don, Sathon. / APP: Air4Thai
Updates and necessary actions will be communicated to students, staff, and parents via email, school website, and announcements.
Emergency Response:
In case of sudden deterioration in air quality, the school will implement emergency protocols, including immediate cessation of outdoor activities and potential school closure.
Review and Updates:
The AQI policy will be reviewed annually and updated as necessary to ensure it remains effective and aligned with local health guidelines.
