2004 Almanac (page 25)  Table 1-3

State PM10 Standards:
50 ug/m3 for 24 hours
not to be exceeded and
20 ug/m3 annual arithmetic mean,
not to be exceeded.
		
State PM2.5 Standard:
12 ug/m3 annual arithmetic mean,
not to be exceeded.
		
National PM10 Standards:
150 ug/m3 for 24 hours, not to be exceeded,
more than once per year and
50 ug/m3 annual arithmetic mean
averaged over 3 years, not to be exceeded.
		
National PM2.5 Standards:
65 ug/m3 for 24 hours based on the
98th percentile concentration averaged
over three years, not to be exceeded and
15 ug/m3 annual arithmetic mean
averaged over 3 years, not to be exceeded.