Notice regarding new AirNow sites

Dear AirNow-Tech users,

Due to a large number of new international sites coming into AirNow and the increasing possibility of duplicate 9 digit site ID’s, we have prepended the 3 digit country code (840 for the U.S.) to all new sites coming into the system as of June 2018. If your agency is adding new sites, a 12 digit site code in your site list is the expected behavior.

Sites that existed prior to June 2018 had back-end adjustments made to ensure they are kept separate from international sites with the same 9 digit code.

Please send any questions or concerns to AirNowInfo@sonomatech.com.

Thank you, AirNow Data Management Center

Posted April 3, 2020, 09:10 (PT)

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

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

July 07, 2020 13:01 (ET) (All times are in ET)
Agency Ozone PM2.5 PM10
AB1 07/07 11:00 07/07 11:00 02/25 09:00
AF1   07/07 12:00  
AIR      
AKC      
AL2 07/07 11:00 07/07 11:00 07/07 11:00
AL3      
AL4 07/07 11:00 07/07 11:00  
ALG   07/07 10:00  
AR1 07/07 11:00 07/07 11:00  
AZ2 07/07 11:00 07/07 11:00 07/07 11:00
AZ3 07/07 09:00 07/07 09:00 07/07 09:00
AZ4 07/07 11:00 07/07 11:00 07/07 11:00
BAA   06/07 22:00  
BC1 07/07 11:00 07/07 11:00 04/07 15:00
BC2 07/07 11:00 07/07 11:00 07/07 11:00
BI1   07/07 11:00  
BIH   07/07 12:00  
BK1      
BLW 07/07 11:00 04/01 01:00  
BPT 09/11 14:00 01/13 13:00 04/14 18:00
CA1 07/07 11:00 07/07 11:00 08/27 03:00
CA2 07/07 11:00 07/07 11:00  
CA3 07/07 11:00 07/07 11:00 07/07 11:00
CA4 07/07 11:00 07/07 11:00  
CA5 07/07 11:00 07/07 11:00 07/07 11:00
CA6 07/07 11:00 07/07 11:00 07/07 11:00
CA8 07/07 11:00 07/07 12:00 07/07 11:00
CA9 07/07 11:00 07/07 11:00 07/07 11:00
CAT 07/07 11:00 07/07 11:00  
CHD   07/07 10:00  
CHO 11/29 13:00    
CI1   07/07 11:00  
CMB   07/07 02:00  
CN1 07/07 11:00 07/07 11:00  
CN3 07/07 11:00 07/07 11:00 07/07 11:00
CN4 07/07 11:00 07/07 11:00  
CO1 07/07 11:00 07/07 11:00 07/07 11:00
CO4      
CRI   07/04 11:00  
CT1 07/07 11:00 07/07 11:00 07/07 11:00
CUR 07/07 10:00 07/07 10:00  
DC1 07/07 11:00 07/07 12:58 07/07 11:00
DE1 07/07 11:00 07/07 11:00  
DN1      
DRN   07/07 11:00  
DUS   07/07 11:00  
EP1      
EPA   08/21 12:00  
FL1 07/07 11:00 07/07 11:00 07/07 11:00
FL2 07/07 11:00 07/07 11:00 07/07 10:00
FL3 07/07 11:00 07/07 11:00 07/07 11:00
FL4 07/07 11:00 07/07 11:00 07/07 11:00
FS1 07/07 11:00 07/07 13:00 08/05 04:00
GAB   03/27 03:00  
GBU 07/07 11:00 07/07 11:00 07/07 11:00
GH1   07/07 11:00  
GN1   07/07 11:00  
GOL      
GT1   07/07 11:00  
HC1   07/07 11:00  
HI1 07/07 11:00 07/07 11:00 07/07 11:00
IA2 07/07 11:00 07/07 11:00  
IA3 07/07 11:00 07/07 11:00  
ID1 07/07 11:00 07/07 12:00 07/07 11:00
IL1 07/07 11:00 07/07 11:00  
IN4 07/07 11:00 07/07 11:00 07/07 11:00
JDA   07/07 10:00  
JOR   07/07 11:00  
JP1 12/30 02:00 12/30 02:00 12/30 02:00
KAZ   07/07 10:00  
KM1 07/07 12:00 07/07 12:00  
KS1 07/07 11:00 07/07 11:00 07/07 11:00
KY1 07/07 11:00 07/07 11:00  
KY2 07/07 11:00 07/07 11:00 07/07 11:00
KZ1   07/07 04:00  
LA1 07/07 11:00 07/07 11:00 02/01 00:00
LAO   07/07 11:00  
LC1      
MA1 07/07 11:00 07/07 11:00  
MAD   07/07 11:00  
MD1 07/07 10:00 07/07 10:00 07/07 10:00
ME1 07/07 11:00 07/07 11:00 07/07 11:00
MEN 07/07 11:00 07/07 11:00 07/07 11:00
ML1   07/07 11:00  
MLD   10/01 14:00  
MM1 07/07 11:00 07/07 11:00  
MMR 07/07 12:00 07/07 12:00  
MO1 07/07 11:00 07/07 11:00 07/07 11:00
MOE      
MON 07/07 10:00 07/07 10:00 07/07 10:00
MT1 07/07 11:00 07/07 11:00 07/07 11:00
MY1   03/03 14:00  
NC2 07/07 11:00 07/07 11:00 07/07 11:00
NCA 07/07 11:00 07/07 11:00 07/07 11:00
NE2 07/07 11:00 07/07 11:00 07/07 11:00
NEA   07/07 12:00  
NH1 07/07 11:00 07/07 11:00 07/07 11:00
NI1      
NI2      
NJ1 07/07 11:00 07/07 11:00  
NL1 07/07 11:00 07/07 11:00  
NM2 07/07 11:00 07/07 11:00 07/07 11:00
NOS 07/07 11:00 07/07 11:00  
NPS 07/07 11:00 07/07 12:00  
NRB   12/31 18:26 12/31 18:26
NV2 07/07 11:00 07/07 11:00 07/07 11:00
NV3 07/07 11:00 07/07 11:00 07/07 11:00
OAP 07/07 12:00    
OAQ 07/07 11:00 07/07 11:00 07/07 11:00
OAR      
OD1   06/06 12:00  
OH1 07/07 11:00 07/07 11:00 07/07 11:00
OR1 07/07 11:00 07/07 11:00  
OR2 07/07 11:00 07/07 11:00  
PA3 07/07 11:00 07/07 11:00  
PIN      
PK1   07/07 11:00  
PK2   07/01 10:00  
PK3   07/07 11:00  
PK4   07/06 13:00  
RI1 07/07 11:00 07/07 11:00  
RIY   06/23 09:00  
SC1 07/07 11:00 07/07 11:00 07/07 11:00
SFN 03/05 07:00    
SHA 07/07 11:00 07/07 11:00  
SIC      
SIS 07/07 11:00 07/07 11:00  
SK1 07/07 11:00 07/07 11:00 08/21 16:00
SLO 07/07 11:00 07/07 11:00 07/07 11:00
SMJ 07/07 11:00   07/07 11:00
SR1 07/07 11:00   07/07 11:00
SU1   07/07 11:00  
SY1   07/07 11:00  
THM 07/07 11:00 07/07 11:00  
TKM      
TN1 07/07 11:00 07/07 11:00  
TN2 07/07 11:00 03/02 23:00 01/01 00:00
TN3 07/07 11:00 07/07 11:00 11/01 00:00
TPCD 07/07 11:00 07/07 11:00 07/07 11:00
TX1 07/07 11:00 07/07 11:00 07/07 11:00
UDA      
UNR      
UTE 07/07 12:00 06/01 01:00  
UZB 07/07 11:00 07/07 11:00  
VA1 07/07 11:00 07/07 11:00  
VG1   01/23 19:24  
VT1 07/07 11:00 07/07 11:00 07/07 11:00
WI1 07/07 11:00 07/07 11:00 07/07 11:00
WT1 07/07 11:00    
WV2 07/07 11:00 07/07 04:00