2003 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.		
		
National PM2.5 Standards:		
"65 ug/m3 for 24 hours, not to be exceeded,"		
based on the 98th percentile concentration		
averaged over three years and		
15 ug/m3 annual arithmetic mean		
averaged over 3 years.