AirNow-Tech is a password-protected website for air quality data management analysis, and decision support. AirNow-Tech is primarily used by the federal, State, Tribal, and local air quality organizations that provide data and forecasts to the AirNow system, as well as researchers and other air data users. It allows users to:

  • Access monitoring site data, information, and polling status
  • Analyze current and past air quality events and episodes
  • Submit and analyze air quality forecasts
  • Configure EnviroFlash email services for public dissemination of air quality forecasts
  • View meteorological and air quality data
  • Generate data reports
  • Create GIS-based maps with air quality and meteorological conditions
  • Sign up for the AirNow Notifier listserve
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A comprehensive list of EPA air pollution data sources

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Color Legend
Green Current Yellow 2 to 6 hrs old
Red over 6 hrs old Gray Unknown status

January 31, 2015 06:31 (ET) (All times are in ET)
Agency Ozone PM2.5 PM10
AB1 01/31 04:00 01/31 04:00 01/31 04:00
AIR      
AK1 01/31 05:00 01/31 05:00 01/31 05:00
AL1 01/31 05:00 01/31 05:00 10/28 13:00
AL2 01/31 05:00 01/31 05:00 01/31 05:00
AL3      
AL4 01/31 04:00 01/31 04:00  
AR1 01/31 05:00 01/31 05:00  
AZ1 01/31 05:00 01/31 05:00 01/31 05:00
AZ2 01/31 04:00 01/31 04:00 01/31 04:00
AZ3 01/31 05:00 01/31 05:00 01/31 05:00
AZ4 01/31 05:00   01/31 05:00
BC1 01/31 05:00 01/31 05:00 01/31 05:00
BC2 01/31 05:00 01/31 05:00 01/31 05:00
BLW 01/31 05:00 07/01 01:00  
CA0 01/31 05:00   01/31 05:00
CA1 01/31 05:00 01/31 05:00 01/31 05:00
CA2 01/31 03:00 01/31 03:00  
CA3 01/31 05:00 01/31 05:00 01/31 05:00
CA4 01/31 05:00 01/31 05:00  
CA5 01/31 05:00 01/31 05:00  
CA6 01/31 05:00 01/31 05:00 01/31 04:00
CA7 01/31 05:00   01/31 05:00
CA8 01/31 05:00 01/31 05:00 01/31 05:00
CA9 01/31 05:00 01/31 05:00 01/31 05:00
CHO      
CK1 01/31 05:00 01/31 05:00 01/31 05:00
CN1 01/31 05:00 01/31 05:00  
CN2 01/31 05:00    
CN3 01/31 05:00 01/31 05:00 01/31 05:00
CN4 01/31 04:00 01/31 04:00  
CO1 01/31 01:00 01/31 02:00 01/31 02:00
CT1 01/31 05:00 01/31 05:00 01/31 05:00
DC1 01/31 04:00 01/31 04:00 01/31 03:00
DE1 01/31 05:00 01/31 05:00  
DN1 01/31 05:00    
EP1      
EPA   08/21 12:00  
FL1 01/31 05:00 01/31 05:00 01/31 05:00
FL2 01/30 15:00 01/30 15:00  
FL3 01/31 05:00 01/31 05:00  
FL4 01/30 13:00 01/30 13:00 01/30 13:00
FS1   01/24 02:00 08/04 20:00
GA1 01/31 05:00 01/31 05:00 01/31 05:00
GBU   01/31 05:00 01/31 05:00
GOL      
HI1 01/31 05:00 01/31 05:00 01/31 05:00
IA1 01/31 05:00 01/31 05:00 01/31 05:00
IA2 11/04 10:00 01/31 05:00  
IA3 11/04 06:00 01/31 05:00  
ID1 01/31 04:00 01/31 05:00 01/31 05:00
IL1 01/31 05:00 01/31 05:00  
IN4 01/31 05:00 01/31 05:00 01/31 05:00
JP1 12/30 02:00 12/30 02:00 12/30 02:00
KS1 01/31 05:00 01/31 05:00 01/31 05:00
KY1 01/31 05:00 01/31 05:00  
KY2 01/31 05:00 01/31 05:00 01/31 05:00
LA1 01/31 05:00 01/31 05:00 12/01 00:00
LC1      
MA1 01/31 05:00 01/31 05:00  
MD1 01/31 05:00 01/31 05:00 06/30 23:00
ME1 01/31 05:00 01/31 05:00 01/31 05:00
MEN 01/31 05:00 01/31 05:00 01/31 05:00
MI1 01/31 05:00 01/31 05:00 01/31 05:00
MM1 01/31 05:00 01/31 05:00  
MN1 01/31 05:00 01/31 05:00 01/31 05:00
MO1 01/31 05:00 01/31 05:00 01/31 05:00
MON 01/31 05:00 01/31 05:00 01/31 05:00
MS1 01/31 05:00 01/31 05:00  
MT1   01/31 04:00 01/31 04:00
MX1 01/31 03:00 01/31 03:00 05/20 01:00
MXC 01/31 05:00 01/31 05:00 01/31 05:00
NC1 01/31 05:00 01/31 05:00 04/29 00:00
NC2 01/31 05:00 01/31 05:00  
NC3 01/14 15:00 01/31 05:00 11/30 23:00
NCA 01/30 23:00 01/30 23:00  
ND1 01/31 06:00 01/31 06:00 01/31 06:00
NE1   01/31 05:00  
NE2 01/31 05:00 01/31 05:00 01/31 05:00
NH1 01/31 05:00 01/31 05:00  
NJ1 01/31 00:00 01/31 00:00  
NL1 01/31 05:00 01/31 05:00  
NM1 01/31 04:00 01/31 04:00 01/31 04:00
NM2 01/31 05:00 01/31 05:00 01/31 05:00
NOS 01/31 05:00 01/31 05:00  
NPS 01/31 05:00 01/31 05:00  
NV1 01/31 05:00 01/31 05:00 01/31 05:00
NV2 01/31 05:00 01/31 05:00 01/31 05:00
NY1 01/31 05:00 01/31 05:00 01/07 13:00
OAP 01/31 06:00    
OAQ 01/31 04:00 01/31 05:00 01/31 05:00
OH1 01/31 05:00 01/31 05:00 01/31 05:00
OK1 01/31 05:00 01/31 05:00 01/31 05:00
ON1 01/31 05:00 01/31 05:00  
OR1 01/31 05:00 01/31 05:00  
OR2 10/01 16:00 01/31 05:00  
PA1 01/31 05:00 01/31 05:00 10/31 23:00
PA2 01/31 04:00 01/31 04:00  
PA3 01/31 05:00 01/31 05:00  
PIN 09/30 23:00    
PR1 01/08 09:00   01/31 05:00
QT1 01/31 05:00 01/31 05:00  
RI1 01/31 04:00 01/31 04:00  
SC1 01/30 14:00 01/30 14:00 01/30 14:00
SD1 01/31 05:00 01/31 05:00 01/31 05:00
SFN 03/05 07:00    
SHA 01/31 05:00 01/31 05:00  
SK1 01/31 05:00 01/31 05:00 01/31 05:00
SLO 01/31 05:00 01/31 05:00 01/31 05:00
SR1 01/31 05:00   01/31 05:00
THM 01/20 15:00 01/28 13:00  
TN1 01/31 04:00 01/31 05:00  
TN2 01/31 05:00 01/31 05:00  
TN3 01/31 05:00 01/31 05:00  
TN4 01/30 06:00 01/31 05:00  
TRX 01/31 05:00 01/31 05:00 01/31 05:00
TX1 01/31 05:00 01/31 05:00 01/31 05:00
UDA      
UT1 01/31 05:00 01/31 05:00 01/31 05:00
VA1 01/31 05:00 01/31 05:00  
VT1 01/31 05:00 01/31 05:00  
WA1 01/31 04:00 01/31 04:00 01/31 04:00
WI1 01/31 04:00 01/31 04:00 01/31 04:00
WT1 01/31 05:00    
WV1      
WV2   01/31 05:00  
WY1 01/31 04:00 01/31 04:00 01/30 20:00