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
Register for an AirNow-Tech Account

A comprehensive list of EPA air pollution data sources

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

No news events currently available.

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

December 14, 2019 03:23 (ET) (All times are in ET)
Agency Ozone PM2.5 PM10
AB1 12/14 01:00 12/14 01:00 02/25 09:00
AF1   12/14 02:00  
AIR      
AKC      
AL2 12/14 02:00 12/14 02:00 12/14 02:00
AL3      
AL4 12/14 01:00 12/14 01:00  
ALG   12/14 01:00  
AR1 12/14 02:00 12/14 02:00  
AZ2 12/14 02:00 12/14 02:00 12/14 02:00
AZ3 12/14 02:00 12/14 02:00 12/14 02:00
AZ4 12/14 02:00 12/14 02:00 12/14 02:00
BAA   12/03 13:00  
BC1 12/14 02:00 12/14 02:00 12/14 02:00
BC2 12/14 02:00 12/14 02:00 12/14 02:00
BI1   12/14 02:00  
BIH   12/14 03:00  
BK1      
BLW 12/14 02:00 04/01 01:00  
BPT 09/11 14:00 12/14 01:00 04/14 18:00
CA1 12/14 02:00 12/14 02:00 08/27 03:00
CA2 12/14 02:00 12/14 02:00  
CA3 12/14 02:00 12/14 02:00 12/14 02:00
CA4 12/14 02:00 12/14 02:00  
CA5 12/14 02:00 12/14 02:00 12/14 02:00
CA6 12/14 01:00 12/14 01:00 12/14 01:00
CA7 12/14 02:00 12/14 02:00 12/14 02:00
CA8 12/14 02:00 12/14 02:00 12/14 02:00
CA9 12/14 02:00 12/14 02:00 12/14 02:00
CAT 11/01 14:00 12/14 02:00  
CHD      
CHO 11/29 13:00    
CI1      
CMB   12/14 02:00  
CN1 12/14 02:00 12/14 02:00  
CN3 12/12 11:00 12/14 01:00 12/14 01:00
CN4 12/14 02:00 12/14 02:00  
CO1 12/14 02:00 12/14 02:00 12/14 02:00
CO4      
CRI   12/14 02:00  
CT1 12/14 02:00 12/14 02:00 12/14 02:00
CUR 06/24 16:00 06/24 16:00  
DC1 12/14 02:00 12/14 02:00 12/14 02:00
DE1 12/14 02:00 12/14 02:00  
DN1      
DRN   12/14 02:00  
DUS   12/14 02:00  
EP1      
EPA   08/21 12:00  
FL1 12/14 02:00 12/14 02:00 12/13 22:00
FL2 12/14 02:00 12/14 02:00 09/29 15:00
FL3 12/14 02:00 12/14 02:00 12/14 02:00
FL4 12/14 02:00 12/14 02:00 12/14 02:00
FS1 12/14 02:00 12/14 03:00 08/05 04:00
GAB   12/14 02:00  
GBU 12/14 02:00 12/14 02:00 12/14 02:00
GH1   12/10 22:00  
GN1   08/07 06:00  
GOL      
GT1   12/14 02:00  
HC1   12/14 02:00  
HI1 12/14 02:00 12/14 02:00 12/14 02:00
IA1 12/14 02:00 12/14 02:00 12/14 02:00
IA2 12/14 02:00 12/14 02:00  
IA3 11/04 09:00 12/14 02:00  
ID1 12/14 01:00 12/14 03:00 12/14 02:00
IL1 12/14 02:00 12/14 02:00  
IN4 12/14 02:00 12/14 02:00 12/14 02:00
JOR   12/14 02:00  
JP1 12/30 02:00 12/30 02:00 12/30 02:00
KAZ   12/14 01:00  
KM1 12/14 02:00 12/14 02:00  
KS1 12/14 02:00 12/14 02:00 12/14 02:00
KY2 12/14 02:00 12/14 02:00 12/14 02:00
LA1 12/14 02:00 12/14 02:00 02/01 00:00
LAO   12/14 02:00  
LC1      
MA1 12/14 01:00 12/14 01:00  
MAD   12/14 02:00  
MD1 12/14 02:00 12/14 02:00  
ME1 12/14 02:00 12/14 02:00 12/14 02:00
MEN 12/14 02:00 12/14 02:00 12/14 02:00
ML1   12/12 17:00  
MLD   10/01 14:00  
MM1 12/14 02:00 12/14 02:00  
MMR 12/13 16:00 12/14 02:00  
MO1 12/14 00:00 12/14 00:00 12/14 00:00
MOE      
MON 12/14 01:00 12/14 02:00 12/14 01:00
MT1 12/14 02:00 12/14 02:00 12/14 02:00
NC2 12/14 02:00 12/14 02:00  
NCA 12/14 02:00 12/14 02:00 12/14 02:00
NE1      
NE2 12/14 02:00 12/14 02:00 12/14 02:00
NEA      
NH1 12/14 02:00 12/14 02:00 12/14 02:00
NJ1 12/14 02:00 12/14 02:00  
NL1 12/14 01:00 12/14 01:00  
NM2 12/14 02:00 12/14 02:00 12/14 02:00
NOS 12/14 00:00 12/14 01:00  
NPS 12/14 02:00 12/14 02:00  
NRB   12/14 02:02 12/14 02:02
NV2 12/14 02:00 12/14 02:00 12/14 02:00
NV3 12/14 02:00 12/14 02:00 12/14 02:00
OAP 12/14 02:00    
OAQ 12/09 22:00 12/09 22:00 12/09 22:00
OAR      
OD1   06/06 12:00  
OH1 12/14 02:00 12/14 02:00 12/14 02:00
OK1 12/14 02:00 12/14 02:00 12/14 02:00
OR1 12/14 02:00 12/14 02:00  
OR2 10/01 15:00 12/14 02:00  
PA3 12/14 02:00 12/14 02:00  
PIN      
PK1   12/14 02:00  
PK2   12/14 02:00  
PK3   12/14 02:00  
PK4   12/14 02:00  
RI1 12/14 02:00 12/14 02:00  
RIY   07/08 06:00  
SC1 12/13 22:00 12/13 22:00 12/13 22:00
SD1 12/14 02:00 12/14 02:00 12/14 02:00
SFN 03/05 07:00    
SHA 12/14 02:00 12/14 02:00  
SIC      
SIS 12/14 02:00 12/14 02:00  
SK1 12/13 17:00 12/13 17:00 08/21 16:00
SLO 12/14 02:00 12/14 02:00 12/14 02:00
SMJ 08/07 09:00   08/07 09:00
SR1 12/14 02:00   12/14 02:00
SU1   12/14 00:00  
SY1   12/14 02:00  
THM 12/14 02:00 12/14 03:00  
TKM      
TN1 11/01 12:00 12/14 01:00  
TN2 12/14 01:00 12/14 01:00 01/01 00:00
TN3 12/14 02:00 12/14 02:00 11/01 00:00
TPCD 12/14 01:00 12/14 01:00 12/14 01:00
TRX 12/14 02:00 12/14 02:00 12/14 02:00
TX1 12/14 02:00 12/14 02:00 12/14 02:00
UDA      
UNR      
UT1 12/14 02:00 12/14 02:00 12/14 02:00
UTE 12/14 02:00 06/01 01:00  
UZB 12/14 02:00 12/14 02:00  
VA1 12/14 02:00 12/14 02:00  
VG1   01/23 19:24  
VT1 12/14 02:00 12/14 02:00 12/14 02:00
WI1 12/14 02:00 12/14 02:00 12/14 02:00
WT1 12/14 02:00    
WV1      
WV2 12/13 20:00 11/13 11:00