ISRiau Guidelines During Poor Air Quality Updated August 2014
PSI: 0 -100: Green · School Life as usual
PSI: 100 - 200: Yellow ● Limit outdoor activities, Recess and Physical Education activities indoors ● Air filters will be operating in each classroom. ● Air Masks to be worn when outdoors.
PSI: 200 - 300: Orange ● No outdoor activities and reduce indoor PE activities with limited physical exertion. ● Air filters will be operating in each classroom. ● Air Masks to be worn when outdoors.
PSI: 300 & above: Red ● No outdoor activities and minimal physical exertion. ● Air quality is checked throughout the school day, beginning at 7:00am. ● Air filters will be operating in each classroom. ● Air Masks to be worn when outdoors.
The Pollutant Standards Index (PSI) The PSI converts measured pollutant concentration in a community's air to a number on a scale from 0 to 500. The PSI number of 100, corresponds to the air quality standard established under the federal Clean Air Act. According to the U.S. EPA, a PSI level in excess of 100 means that a pollutant is in the unhealthy range on a given day, a PSI level at or below 100 means that a pollutant reading is in the satisfactory range. |
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