http:rtisuccessorg. Progress monitoring, one of the essential. components of Response to Intervention (RTI), is. characterized by repeated measurement of academic. performance that is conducted at least monthly. The. process may be used to assess studentsâ academic. performance over time, to quantify student rates of.
Calculating the Air Quality Index. The AQI is calculated by converting measured pollutant concentrations to a uniform index which is based upon peer-reviewed scientific evidence of the health effects associated with a pollutant.
The AQI for fine particles (PM2.5) is based on a 24-hour average concentration. When PM2.5 levels change quickly, the 24-hour average PM2.5 concentration is slow to respond. To better reflect real-time PM2.5 conditions, the MPCA and EPA AQI websites calculate the PM2.5 AQI using a formula called NowCast.