TABLE 10. PARTICULATE SUMMARY REPORT FOR 2007Particulate: PM 2.5 Units: ug/m3

State 24 Hour Standard: No Separate State StandardFederal 24 Hour Standard: 35 ug/m3 *California Annual Arithmetic Mean Standard: 12ug/m3 Federal Annual Arithmetic Mean Standard: 15 ug/m3 

STATION Annual Arithmetic Mean 24-Hour High Date 24-Hour 2nd High Date SANTA BARBARA 9.5 24 11/20/2007 21 10/27/2007 SANTA MARIA 7.8 19 10/27/2007 16 11/8/2007

The Federal 24 Hour Standard of 65 ug/m3 was strengthened to 35 ug/m3 in September 2006

Particulate sampling is on a 1 in 6 day schedule for a 24 hour run period.

Return to 2007 Annual Air Quality Report