1. Olympic Region Clean Air Agency Air quality summary for April 2012 Jimmy Werner and Mark Moore, slides by Mark Moore, 08May12

2. Olympic Region Clean Air Agency, Olympia, WA 98501 Numerical and Categorical* April 2012 Air Quality (PM2.5) Aberdeen: 30 days GOOD Cheeka Peak Observatory: 26 days GOOD and 4 days Unknown** Lacey: 30 days GOOD Port Angeles: 30 days of GOOD Port Townsend: 30 days GOOD Raymond: 30 days GOOD Shelton: 30 days GOOD * According to the Washington Air Quality Advisory (WAQA) ** Server failure

3. Olympic Region Clean Air Agency, Olympia, WA 98501 Ozone Season May 1 – September 31 Ground level Ozone Measured as 8-hour average Standard : 75 parts per billion (ppb) Monitors in: Yelm, Lacey and Cheeka Peak More information at: http://airnw.us/ozone

4. Olympic Region Clean Air Agency, Olympia, WA 98501 Lacey Ozone 2011

5. Olympic Region Clean Air Agency, Olympia, WA 98501 Yelm Ozone 2011

6. Olympic Region Clean Air Agency, Olympia, WA 98501 Cheeka Peak Ozone 2011

7. Olympic Region Clean Air Agency, Olympia, WA 98501 PM2.5 Air Quality Graphs Follow If time allows

8. Olympic Region Clean Air Agency, Olympia, WA 98501