American School of Bombay

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Air Quality at ASB

ASB’s endeavor to provide optimum air quality for students is an ongoing process that utilizes knowledge, research, and best practices from around the world. Purifying indoor air by three-stage HEPA filtration, monitoring indoor air quality with real-time sensors, enclosing the play areas and recreational spaces, and having more than 50,000 live indoor plants including green walls are some of the initiatives that ensure the best possible indoor air quality within the school campuses.

ASB measures and monitors air quality across its three campuses in real time using the latest technologies to take pre-emptive and corrective actions as needed. You can view the latest updates and comparisons between outdoor and indoor air qualities at each of the campuses in the next tabs.

Live Monitoring Powai

Live Monitoring ESC

Live Monitoring SSC


Unfortunately we sometimes get poor air quality in Mumbai. Generally this occurs between October and March, the cooler months of the year. At ASB we monitor the AQI (Air Quality Index) using the published US Consulate AQI readings every hour when students are participating in school or other on campus activities, or when they are involved in activities in the wider Mumbai area. These readings inform our decisions about when outdoor activities need to be modified or cancelled.

Procedures will be put in place to ensure that ASB limits the aerobic activity of students when necessary. On days when AQI readings exceed 200 for Elementary students and 250 for all other students, we will not have outdoor activities. If AQI levels are between 201 and 250, the ASB PE and/or Athletics Department on the Secondary Campus will modify outdoor activities in order to keep heart-rates and respiration-rates low, while still providing instruction and movement opportunities for our students. Any activity will be short in duration and of minimal physical demand.

Practices/Procedure Considerations:

Relevant understandings regarding this decision include the following:

We believe that

  1. The majority of individuals and families expect that the school delivers a high quality physical education and athletics program to students;
  2. Activity is necessary for us all – children, young adults, and adults – and inactivity presents potential behavioral and health related problems;
  3. Significant indoor spaces will maximise student’s ability to participate in physical activity while breathing good quality air, irrespective of the external AQI.
  4. Parents always have the right to request that their child(ren) does/do not participate in aerobic activity, or go outside for recess or classes, and under such circumstances, students will never be penalized for non-participation;
  5. We are members of international school athletic leagues – ASIAC and SAISA – and as such, we have commitments to be participatory, contributing members;
  6. We wish to remain as active as possible regarding all aspects of our lives in Mumbai;
  7. Students exhibiting or complaining of shortness of breath or irritation in the throat are routinely sent into a building with conditioned air until they feel relief.
  8. Regular readings of inside air quality will help us to ensure that our indoor air quality continues to be excellent.