IDEM Continuous Air Quality Monitoring

Peak Daily One-Hour Ozone Averages for January 2009
The table below lists the peak daily one-hour ozone concentrations measured in January 2009 in each community where the IDEM measures ozone. Concentrations are color-highlighted based on the EPA-defined Air Quality Index colors. (See Interpreting the AQI.) All ozone measurements are in parts per billion, and are truncated to an integer number.

The values that go into this table are calculated at 3:30 am each morning. Therefore, the current day will almost always have very low hourly averages that are not truly representative of local conditions for the day. Because of this, the report does not display the current day's data.

Use the selection boxes below to customize this report. You may select a different month, a different year, a different report format, and whether or not to include time on the report. Click on the Generate Report button once you have made your selections.

Month:	Year:	Report Format:	Include time:
			Include time
Highlight using AQI colors

Area	Monitoring Site	POC	January 2009
Area	Monitoring Site	POC	1	2	3	4	5
North West
	Hammond-141st St	1 ^N	NA	NA	NA	NA	NA
	Michigan City	1 ^N	NA	NA	NA	NA	NA
	Valparaiso	1 ^N	NA	NA	NA	NA	NA
	Gary-IITRI	1 ^N	NA	NA	NA	NA	NA
	LaPorte-E. Lincolnway	1 ^N	NA	NA	NA	NA	NA


Area	Monitoring Site	POC	January 2009
Area	Monitoring Site	POC	1	2	3	4	5
North Central
	SouthBend	1 ^N	NA	NA	NA	NA	NA
	Bristol	1 ^N	NA	NA	NA	NA	NA
	Potato Creek	1 ^N	NA	NA	NA	NA	NA


Area	Monitoring Site	POC	January 2009
Area	Monitoring Site	POC	1	2	3	4	5
North East
	Fort Wayne-Beacon St	1 ^N	NA	NA	NA	NA	NA
	Leo HS	1 ^N	NA	NA	NA	NA	NA
	Roanoke Elem. School	1 ^N	NA	NA	NA	NA	NA


Area	Monitoring Site	POC	January 2009
Area	Monitoring Site	POC	1	2	3	4	5
West Central
	Terre Haute-Lafayette Ave	1 ^N	NA	NA	NA	NA	NA
	Flora	1 ^N	NA	NA	NA	NA	NA
	Sandcut	1 ^N	NA	NA	NA	NA	NA


Area	Monitoring Site	POC	January 2009
Area	Monitoring Site	POC	1	2	3	4	5
East Central
	Indpls-E.16th St	1 ^N	NA	NA	NA	NA	NA
	Emporia	1 ^N	NA	NA	NA	NA	NA
	Albany	1 ^N	NA	NA	NA	NA	NA


Area	Monitoring Site	POC	January 2009
Area	Monitoring Site	POC	1	2	3	4	5
South West
	Boonville	1 ^N	NA	NA	NA	NA	NA
	Lynnville	1 ^N	NA	NA	NA	NA	NA
	Inglefield	1 ^N	NA	NA	NA	NA	NA
	St. Philips	1 ^N	NA	NA	NA	NA	NA
	Leopold	1 ^N	NA	NA	NA	NA	NA
	Dayville	1 ^N	NA	NA	NA	NA	NA


Area	Monitoring Site	POC	January 2009
Area	Monitoring Site	POC	1	2	3	4	5
South East
	New Albany	1 ^N	NA	NA	NA	NA	NA
	Charlestown State Park	1 ^N	NA	NA	NA	NA	NA
NA - Data not available.
^N - Data from this instrument does not meet EPA quality assurance criteria and cannot be used for regulatory purposes.

Interpreting the AQI

Each NAAQS pollutant has a separate AQI scale, with an AQI rating of 100 corresponding to the concentration of the Federal Standard for that pollutant. Additional information about the AQI and how it can be used is available from the EPA Exit

The AQI scale is divided into the following categories:

Air Quality
	Good	Moderate	Unhealthy (for sensitive groups)	Unhealthy	Very Unhealthy	Hazardous
The AQI Air Quality Scale