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EPA, Air Quality Index, USA, 2006

This data set provides information about the Air Quality Index (AQI). The AQI is an index for reporting how clean or polluted the air is and the associated health risks. Data in this set are given in number of days that the AQI fell within a certain range (good - hazardous). This data also provides information on which pollutants were in the air (O3, CO, SO2, etc…). All data is given on the county level for the United States from 2001 to 2006. Data can be seen for earlier years and all of this data can be found at the EPA’s website . This dataset can be used to see which areas have the poorest or best air quality, which can be useful for a number of industries, from real estate to health care and insurance.

Attributes Range Median Mean Standard Deviation
Days of CO 0.00 - 153.00 0.00 2.92 14.06

Days of CO

EPA Region 1.00 - 10.00 5.00 5.24 2.31

EPA Region

Days of NO2 0.00 - 0.00 0.00 0.00 0.00

Days of NO2

State Text column (no statistics available)

Name of the State

90th Percent AQI 3.00 - 129.00 56.00 55.20 16.57

90th Percent AQI

Good AQI 3.00 - 274.00 158.00 149.41 63.07

Good AQI

Days of O3 0.00 - 273.00 113.00 102.55 80.14

Days of O3

Days of SO2 0.00 - 273.00 0.00 11.71 40.64

Days of SO2

County Code Text column (no statistics available)

County Code

Median AQI value 1.00 - 70.00 36.00 34.15 10.94

Median AQI value

Total AQI Days 5.00 - 298.00 184.00 182.87 72.78

Total AQI Days

Max AQI Value 10.00 - 501.00 92.00 97.41 42.47

Max AQI Value

Days of PM10 0.00 - 243.00 0.00 13.35 36.16

Days of PM10

Year 2006.00 - 2006.00 2006.00 2006.00 0.00

Year

Moderate AQI 0.00 - 194.00 23.00 31.67 31.35

Moderate AQI

Unhealthy AQI 0.00 - 11.00 0.00 0.17 1.00

Unhealthy AQI

Sensitive AQI 0.00 - 51.00 0.00 1.62 4.25

Sensitive AQI

County Text column (no statistics available)

Name of the County