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

July 23, 2014 06:46 (ET) (All times are in ET)
Agency Ozone PM2.5 PM10
AB1 07/23 05:00 07/23 05:00 07/23 05:00
AIR      
AK1 07/23 05:00 07/23 05:00 07/23 05:00
AL1 07/23 05:00 07/23 05:00 10/28 13:00
AL2 07/23 05:00 07/23 05:00 07/23 05:00
AL3      
AL4 07/19 11:00 07/19 11:00  
AR1 07/23 05:00 07/23 05:00  
AZ1 07/23 05:00 07/23 05:00 07/23 05:00
AZ2 07/23 05:00 07/23 05:00 07/23 05:00
AZ3 07/23 05:00 07/23 05:00 07/23 05:00
AZ4 07/23 05:00   04/01 01:00
BC1 07/23 05:00 07/23 05:00 07/23 05:00
BC2 07/23 05:00 07/23 05:00 07/23 05:00
BLW 07/23 05:00 02/07 21:25  
CA0 07/23 05:00   07/23 05:00
CA1 07/23 05:00 07/23 05:00 07/23 05:00
CA2 07/23 05:00 07/23 05:00  
CA3 07/23 05:00 07/23 05:00 07/23 05:00
CA4 07/23 05:00 07/23 05:00  
CA5 07/23 05:00 07/23 05:00  
CA6 07/23 05:00 07/23 05:00 07/23 05:00
CA7 07/23 05:00   07/22 09:00
CA8 07/23 05:00 07/23 05:00 07/23 05:00
CA9 07/23 05:00 07/23 05:00 07/23 05:00
CHO      
CK1 07/23 05:00 07/23 05:00 07/23 05:00
CN1 07/23 05:00 07/23 05:00  
CN2 07/23 05:00 07/23 03:00  
CN3 07/23 05:00 07/23 05:00 07/23 05:00
CN4 07/23 05:00 07/23 05:00  
CO1 07/23 05:00 07/23 05:00 07/23 05:00
CT1 07/23 05:00 07/23 05:00 07/23 04:00
DC1 07/23 04:00 07/23 04:00 07/23 04:00
DE1 07/23 05:00 07/23 05:00  
DN1 07/23 06:00    
EP1      
EPA   08/21 12:00  
FL1 07/23 04:00 07/23 04:00 07/23 04:00
FL2 07/22 15:00 07/22 15:00  
FL3 07/23 05:00 07/23 05:00  
FL4 07/23 05:00 07/23 05:00 07/23 05:00
FS1   07/23 05:00 08/04 20:00
GA1 07/23 05:00 07/23 05:00 07/23 05:00
GBU   07/23 05:00 07/23 05:00
GOL      
HI1 07/23 05:00 07/23 05:00 07/23 05:00
IA1 07/23 05:00 07/23 05:00 07/23 05:00
IA2 07/23 05:00 07/23 05:00  
IA3 07/23 05:00 07/23 05:00  
ID1 07/23 05:00 07/23 05:00 07/23 05:00
IL1 07/23 05:00 07/23 05:00 01/06 11:12
IN4 07/23 05:00 07/23 05:00 07/23 05:00
JP1 12/30 02:00 12/30 02:00 12/30 02:00
KS1 07/23 05:00 07/23 05:00 07/23 05:00
KY1 07/23 05:00 07/23 05:00  
KY2 07/23 05:00 07/23 05:00 07/23 05:00
LA1 07/23 05:00 07/23 05:00 06/01 00:00
LC1      
MA1 07/23 05:00 07/23 05:00  
MD1 07/23 05:00 07/23 05:00 11/24 15:50
ME1 07/23 05:00 07/23 05:00 07/23 05:00
MEN 07/23 05:00 07/23 05:00 07/23 05:00
MI1 07/23 05:00 07/23 05:00 07/23 05:00
MM1 07/23 05:00 07/23 05:00  
MN1 07/23 05:00 07/23 05:00 07/23 05:00
MO1 07/23 05:00 07/23 05:00 07/23 05:00
MON 07/23 05:00 07/23 05:00 07/23 05:00
MS1 07/23 05:00 07/23 05:00  
MT1   07/23 04:00 02/01 01:00
MX1 07/23 03:00 07/23 03:00 05/20 01:00
MXC 07/23 06:00 07/23 06:00 07/23 06:00
NC1 07/23 05:00 07/23 05:00 04/29 00:00
NC2 07/23 05:00 07/23 05:00  
NC3 07/23 05:00 07/23 05:00 03/31 23:00
NCA 07/23 05:00 07/23 04:00  
ND1 07/23 06:00 07/23 06:00 07/23 06:00
NE1 07/23 05:00 07/23 05:00  
NE2 07/23 05:00 07/23 05:00 07/23 05:00
NH1 07/23 05:00 07/23 05:00  
NJ1 07/23 05:00 07/23 05:00  
NL1 07/23 05:00 07/23 05:00  
NM1 07/23 05:00 07/23 05:00 07/23 05:00
NM2 07/23 05:00 07/23 05:00 07/23 05:00
NOS 07/23 05:00 07/23 04:00  
NPS 07/23 05:00 07/23 05:00  
NV1 07/23 05:00 07/23 05:00 07/23 05:00
NV2 07/23 05:00 07/23 05:00 07/23 05:00
NY1 07/23 05:00 07/23 05:00 01/07 13:00
OAP 07/23 05:00    
OAQ 07/23 04:00 07/23 05:00 07/23 05:00
OH1 07/23 04:00 07/23 04:00 07/23 04:00
OK1 07/23 05:00 07/23 05:00 07/23 05:00
ON1 07/23 05:00 07/23 05:00  
OR1 07/23 05:00 07/23 05:00  
OR2 07/23 05:00 07/23 05:00  
PA1 07/23 05:00 07/23 05:00 03/31 23:00
PA2 07/23 05:00 07/23 05:00  
PA3 07/23 05:00 07/23 05:00  
PIN 07/23 05:00    
PR1     07/23 04:00
QT1 07/23 05:00 07/23 05:00  
RI1 07/23 05:00 07/23 05:00  
SC1 07/23 05:00 07/23 05:00 07/23 05:00
SD1 07/23 05:00 07/23 05:00 04/01 01:00
SFN 03/05 07:00    
SHA 07/23 05:00 07/23 05:00  
SK1 07/23 05:00 07/23 05:00 03/06 10:00
SLO 07/23 05:00 07/23 05:00 07/23 05:00
SR1 07/23 05:00   07/23 05:00
THM 07/23 05:00 07/23 05:00  
TN1 07/23 04:00 07/23 05:00  
TN2 07/23 05:00 07/15 09:00  
TN3 07/23 05:00 07/23 05:00  
TN4 07/23 05:00 07/23 05:00  
TRX 07/23 05:00 07/23 05:00 07/23 05:00
TX1 07/23 05:00 07/23 05:00 07/23 05:00
UDA      
UT1 07/23 05:00 07/23 05:00 07/23 05:00
VA1 07/23 05:00 07/23 05:00  
VT1 07/23 05:00 07/23 05:00  
WA1 07/23 04:00 07/23 04:00 07/23 04:00
WI1 07/23 05:00 07/23 05:00 07/23 05:00
WT1 07/23 05:00    
WV1      
WV2 07/23 05:00 07/23 05:00  
WY1 07/23 06:00 07/23 05:00 07/23 05:00