Air Quality Data

Continuous Data

These data tables include all of our continuous PM2.5 and ozone data. This data is not quality assured until it is submitted to AQS. Also, the continuous PM2.5 data in this section is not used to determine compliance status with the National Ambient Air Quality Standards (NAAQS). Data from our federal reference method (FRM) PM2.5 filter-based monitors are the only data used to determine compliance with the PM NAAQS. FRM data can be found under the AQS section in the opposite column.

Particulate Matter (PM2.5) Data
Note: Data includes 24-hour averages

Today's PM2.5
Yesterday's PM2.5
Today vs. Yesterday Comparison
Year-to-Date Table

Past Data Tables

• 2009
• 2008
• 2006

Ozone Data
Note: Date includes hourly values & 8-hour averages

Today's Hourly Data
Yesterday's Hourly Data
Today vs. Yesterday Comparison
Today vs. Previous 4 Days Comparison
Year-to-Date Table

Past Data Tables

• 2009
• 2008
• 2007
• 2006
• 2005
• 2004
• 2003
• 2002
• 2001

Air Quality Systems Data

The Air Quality System (AQS) contains ambient air pollution data collected by EPA, state, local, and tribal air pollution control agencies from thousands of monitoring stations.  AQS also contains meteorological data, descriptive information about each monitoring station (including its geographic location and its operator), and data quality assurance/quality control information. 

The Office of Air Quality Planning and Standards (OAQPS) and other AQS users rely upon the system data to assess air quality, assist in Attainment/Non-Attainment designations, evaluate State Implementation Plans for Non-Attainment Areas, perform modeling for permit review analysis, and other air quality management functions.  AQS information is also used to prepare reports for Congress as mandated by the Clean Air Act.

Below you will find AQS data for the RAPCA monitoring locations.

Note: All files are in MS Excel format

	PM 2.5	PM 10
Dayton - Montgomery Co. (2001 - 2009)		---
Moraine - Montgomery Co. (2000 - 2009)	---
Springfield - Clark Co. (2000 - 2009)		---
National Trails - Preble Co. (2000 - 2009)		---
Yellow Springs - Green Co. PM2.5 (2003 - 2009) PM10 (2000 - 2009)

	2009	2008	2007	2006	2005	2004	2003	2002	2001
Claridge - Montgomery Co.		---					---	---	---
Xenia - Greene Co.
Enon - Clark Co.
Springfield - Clark Co.
Miami East - Miami Co.
National Trails - Preble Co.
Eastwood - Montgomery Co			---	---	---	---	---	---	---

	2009	2008	2007	2006	2005	2004	2003	2002	2001
Enon - Clark Co.

	2009	2008	2007	2006	2005	2004	2003	2002	2001
FROCCO - Montgomery Co.
Reibold - Montgomery Co.							---	---	---