Information Available: Historical air quality maps and data for the
Hamilton County Ohio region are provided for ozone
monitoring season (April through October, 1991 to 2005) and PM2.5 (2001 to 2005). Hourly maps and
historical data can be obtained by using the pull down menus
given below. DISCLAIMER -- The data in these reports have neither
been validated nor quality assured by State or LAA Air Monitoring
Agencies. These data may change and are not considered official
until QA/QCed.