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

Register with AirNow API for an automatic feed of AirNow air quality data

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

June 18, 2019 06:09 (ET) (All times are in ET)
Agency Ozone PM2.5 PM10
AB1 06/18 04:00 06/18 04:00 02/25 09:00
AF1   03/15 08:00  
AIR      
AKC      
AL1 06/18 04:00 06/18 04:00 03/01 09:00
AL2 06/18 05:00 06/18 05:00 06/18 05:00
AL3      
AL4 06/18 04:00 06/18 04:00  
ALG   06/18 00:00  
AR1 06/18 04:00 06/18 04:00  
AZ2 06/18 04:00 06/18 04:00 06/18 04:00
AZ3 06/18 05:00 06/18 05:00 06/18 05:00
AZ4 06/18 04:00 06/18 04:00 06/18 04:00
BAA   06/18 03:00  
BC1 06/18 04:00 06/18 04:00 06/18 04:00
BC2 06/18 04:00 06/18 04:00 06/18 04:00
BI1   06/18 04:00  
BIH   06/11 09:00  
BK1      
BLW 06/18 04:00 04/01 01:00  
BPT 06/18 05:00 06/18 04:00 04/14 18:00
CA0 06/18 04:00 06/18 04:00 06/18 04:00
CA1 06/18 05:00 06/18 05:00 08/27 03:00
CA2 06/18 04:00 06/18 04:00  
CA3 06/18 04:00 06/18 04:00 06/18 04:00
CA4 06/18 04:00 06/18 04:00  
CA5 06/18 05:00 06/18 05:00 06/18 05:00
CA6 06/18 04:00 06/18 04:00 06/18 04:00
CA7 06/18 04:00 06/18 04:00 06/18 04:00
CA8 06/18 04:00 06/18 06:00 06/18 04:00
CA9 06/18 05:00 06/18 05:00 06/18 05:00
CAT 06/18 04:00 06/18 04:00  
CHO 06/18 04:00    
CK1 06/18 04:00 06/18 04:00 06/18 04:00
CMB   06/18 05:00  
CN1 06/18 04:00 06/18 04:00  
CN3 06/18 04:00 06/18 04:00 06/18 04:00
CN4 06/18 04:00 06/18 04:00  
CO1 06/18 05:00 06/18 05:00 06/18 05:00
CO4      
CRI   05/06 12:00  
CT1 06/18 04:00 06/18 04:00 06/18 04:00
CUR 06/18 03:00 06/18 03:00  
DC1 06/18 04:00 06/18 06:07 06/17 13:00
DE1 06/18 04:00 06/18 04:00  
DN1      
DRN   06/18 04:00  
DUS   06/18 09:00  
EP1      
EPA   08/21 12:00  
FL1 06/18 04:00 06/18 04:00 06/18 04:00
FL2 06/18 05:00 06/18 05:00 09/29 15:00
FL3 06/18 04:00 06/18 04:00 06/18 04:00
FL4 06/18 04:00 06/18 04:00 06/18 04:00
FS1 06/18 04:00 06/18 06:00 08/05 04:00
GBU 06/18 04:00 06/18 04:00 06/18 04:00
GOL      
GT1      
HC1   06/14 20:00  
HI1 06/18 04:00 06/18 04:00 06/18 04:00
IA1 06/18 04:00 06/18 04:00 06/18 04:00
IA2 06/18 04:00 06/18 04:00  
IA3 06/18 05:00 06/18 05:00  
ID1 06/18 04:00 06/18 05:00 06/18 04:00
IEG 06/18 05:00 06/18 05:00 06/18 05:00
IL1 06/18 04:00 06/18 04:00  
IN4 06/18 04:00 06/18 04:00 06/18 04:00
JDA   05/18 01:11  
JOR   06/18 04:00  
JP1 12/30 02:00 12/30 02:00 12/30 02:00
KAZ   06/18 03:00  
KM1 06/18 05:00 06/18 05:00  
KS1 06/18 05:00 06/18 05:00 06/18 05:00
KY2 06/18 04:00 06/18 04:00 06/18 04:00
LA1 06/18 05:00 06/18 05:00 02/01 00:00
LAO   06/18 04:00  
LC1      
MA1 06/18 04:00 06/18 04:00  
MAD   06/11 12:00  
MD1 06/17 13:00 06/17 13:00  
ME1 06/18 04:00 06/18 04:00 06/18 04:00
MEN 06/18 05:00 06/18 05:00 06/18 05:00
MI1 06/18 05:00 06/18 05:00 06/18 05:00
ML1      
MM1 06/18 05:00 06/18 05:00  
MMR   06/18 05:00  
MO1 06/18 05:00 06/18 05:00 06/18 05:00
MOE      
MON 06/18 04:00 06/18 04:00 06/18 04:00
MS1 06/18 05:00 06/18 04:00  
MT1 06/18 04:00 06/18 04:00 06/18 04:00
NC2 06/18 04:00 06/18 04:00  
NCA 06/18 04:00 06/11 12:00 06/18 04:00
NE1      
NE2 06/18 04:00 06/18 04:00 06/18 04:00
NEA      
NH1 06/18 04:00 06/18 04:00 06/18 04:00
NJ1 06/18 04:00 06/18 04:00  
NL1 06/18 04:00 06/18 04:00  
NM2 06/18 04:00 06/18 04:00 06/18 04:00
NOS 06/18 04:00 06/18 04:00  
NPS 06/18 04:00 06/18 05:00  
NRB   06/18 05:02 06/18 05:02
NV2 06/18 04:00 06/18 04:00 06/18 04:00
NV3 06/18 04:00 06/18 04:00 06/18 04:00
OAP 06/18 05:00    
OAQ 06/18 03:00 06/18 05:00 06/18 05:00
OAR      
OD1   06/06 12:00  
OH1 06/18 04:00 06/18 04:00 06/18 04:00
OK1 06/18 05:00 06/18 05:00 06/18 05:00
OR1 06/18 05:00 06/18 05:00  
OR2 06/18 05:00 06/18 05:00  
PA1 06/18 05:00 06/18 05:00 06/30 23:00
PA3 06/18 04:00 06/18 04:00  
PIN      
PK1   06/18 04:00  
PK2   06/18 04:00  
PK3   06/18 04:00  
PK4   06/17 22:00  
PR1 06/18 04:00 06/18 04:00 06/18 04:00
RI1 06/18 05:00 06/18 05:00  
RIY   06/17 19:00  
SC1 06/18 04:00 06/18 04:00 06/18 04:00
SD1 06/17 12:00 06/18 04:00 06/17 12:00
SFN 03/05 07:00    
SHA 06/18 04:00 06/18 04:00  
SIC      
SIS 06/18 04:00 06/18 04:00  
SK1 06/18 04:00 06/18 04:00 08/21 16:00
SLO 06/18 05:00 06/18 05:00 06/18 05:00
SMJ 08/07 09:00   08/07 09:00
SR1 06/18 05:00   06/18 05:00
SY1   06/18 04:00  
THM 06/18 04:00 06/18 06:00  
TKM      
TN1 06/18 04:00 06/18 04:00  
TN2 06/18 04:00 06/18 03:00 01/01 00:00
TN3 06/18 04:00 06/18 04:00 11/01 00:00
TN4 06/18 04:00 06/18 04:00  
TPCD 06/18 04:00 06/18 04:00 06/18 04:00
TRX 06/18 05:00 06/18 05:00 06/18 05:00
TX1 06/18 04:00 06/18 04:00 06/18 04:00
UDA      
UNR      
UT1 06/18 04:00 06/18 04:00 06/18 04:00
UTE 06/18 05:00 06/01 01:00  
UZB 06/18 04:00 06/18 04:00  
VA1 06/18 04:00 06/18 04:00  
VG1   01/23 19:24  
VT1 06/18 04:00 06/18 04:00 06/18 04:00
WI1 06/18 04:00 06/18 04:00 06/18 04:00
WT1 06/18 04:00    
WV1      
WV2 06/18 05:00 06/04 13:00