REDUCED FREQUENCY DISTRIBUTION REPORT (AMP260)

The Reduced Frequency Distribution Report presents a statistical summary of the data reported by air quality monitors. The data are extracted from the AIRS summary File. The report presents statistical summary data for each selected monitor and time period, grouped by state and parameter description.

The header for this report includes the standard AQS information, title of the report the following –

Parameter Code

Parameter Description

State Code

State Name

The body of the report includes the following fields –

County Name

Site ID

POC

Year

Duration

Unit

EDT

Percent of Data Observed

Number of Data Observed

Agency Type

Percentiles (Percent Number above the value)

Maximum Observation

Second Maximum Observation

Minimum Value

Arithmetic Mean

Arithmetic Standard Deviation

The Arithmetic Mean includes an indicator that will display if the mean is exceptional.