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This indicator shows the annual number of days with daily 8-hour maximum ozone concentration over the National Ambient Air Quality Standard. Air Quality Standard monitoring data were used for counties and days with monitors and hierarchical Bayesian data were used for any county or day without monitors. The spatial resolution of the HB grid cell used is 36 Km. The grid cell values were transferred to counties based on a population weighted approach. The indicators are available for counties/states in the conterminous US (Lower 48 + Washington DC). HB modeled data are not available for AK and HI. The state and national values are an average of county values weighted by population size.
Measurement Period: 2005
learn more about the color range
2011 - Dimensions
Comparison of 59 Counties
Peers included in this indicator:
- Peer counties are those counties similar in population composition and selected demographics.
Of the peer counties, only the ones that have data for the same indicator/time frame have been included.
This county has 32 peer counties
Peer counties (counties and county-like geographic areas) in stratum number 44
were stratified on the basis of the following factors: Frontier Status, Population Size, Poverty, Age
All Peer Counties for Montgomery
West Feliciana, LA;
Model Practices (0)
Associated Model Practices have not been identified for this measure.