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 December 13, 2018, 08:56 (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

January 21, 2019 00:13 (ET) (All times are in ET)
Agency Ozone PM2.5 PM10
AB1 01/20 22:00 01/20 22:00 02/25 09:00
AIR      
AL1 01/20 22:00 01/20 22:00 03/01 09:00
AL2 01/20 22:00 01/02 10:00 01/20 22:00
AL3      
AL4 01/20 21:00 01/20 21:00  
ALG   04/04 07:00  
AR1 01/20 22:00 01/20 22:00  
AZ2 01/20 22:00 01/20 22:00 01/20 23:00
AZ3 01/20 23:00 01/20 23:00 01/20 23:00
AZ4 01/20 23:00 01/01 01:00 01/20 23:00
BAA   07/20 07:00  
BC1 01/20 22:00 01/20 22:00 01/20 22:00
BC2 01/20 23:00 01/20 23:00 01/20 23:00
BIH   01/20 23:00  
BK1      
BLW 01/20 22:00 04/01 01:00  
BPT 01/20 23:00 01/20 22:00 04/14 18:00
CA0 01/20 23:00 01/20 23:00 01/20 23:00
CA1 01/20 23:00 01/20 23:00 08/27 03:00
CA2 01/20 22:00 01/20 22:00  
CA3 01/20 22:00 01/20 22:00 01/20 22:00
CA4 01/20 23:00 01/20 23:00  
CA5 01/20 23:00 01/20 23:00 01/20 23:00
CA6 01/20 22:00 01/20 22:00 01/20 22:00
CA7 01/20 23:00 01/20 23:00 01/20 23:00
CA8 01/20 22:00 01/20 23:00 01/20 22:00
CA9 01/20 23:00 01/20 23:00 01/20 23:00
CAT 11/14 10:00 01/20 22:00  
CHO 12/06 08:00    
CK1 01/20 23:00 01/20 23:00 01/20 23:00
CMB   01/20 23:00  
CN1 01/20 22:00 01/20 22:00  
CN3 01/18 13:00 01/18 13:00 01/18 13:00
CN4 01/20 22:00 01/20 22:00  
CO1 01/20 23:00 01/20 23:00 01/20 23:00
CO4      
CT1 01/20 22:00 01/20 22:00 01/20 22:00
CUR 01/20 22:00 01/20 22:00  
DC1 01/20 21:00 01/20 21:00 01/20 21:00
DE1 01/20 23:00 01/20 23:00  
DN1      
DRN   04/24 01:00  
EP1      
EPA   08/21 12:00  
FL1 01/20 22:00 01/20 22:00 01/20 22:00
FL2 01/20 23:00 01/20 23:00 09/29 15:00
FL3 01/20 22:00 01/20 22:00 01/20 22:00
FL4 01/20 23:00 01/20 23:00 01/20 23:00
FS1 01/20 23:00 01/20 23:00 08/05 04:00
GBU 01/20 23:00 01/20 23:00 01/20 23:00
GOL      
HC1   01/20 22:00  
HI1 01/20 22:00 01/20 22:00 01/20 22:00
IA1 01/20 23:00 01/20 23:00 01/20 23:00
IA2 01/20 23:00 01/20 23:00  
IA3 11/01 12:00 01/20 23:00  
ID1 01/20 22:00 01/20 23:00 01/20 22:00
IEG 01/20 23:00 01/20 23:00 01/20 23:00
IL1 01/20 22:00 01/20 22:00  
IN4 01/20 22:00 01/20 22:00 01/20 22:00
IRQ      
JDA   05/18 01:11  
JP1 12/30 02:00 12/30 02:00 12/30 02:00
KAZ   01/20 22:00  
KM1 01/20 23:00 01/20 23:00  
KS1 01/20 23:00 01/20 23:00 01/20 23:00
KY2 01/20 23:00 01/20 23:00 01/20 23:00
LA1 01/20 13:00 01/20 13:00 12/01 00:00
LC1      
MA1 01/20 22:00 01/20 22:00  
MD1 01/20 23:00 01/20 23:00  
ME1 01/20 22:00 01/20 22:00 01/20 20:00
MEN 01/20 23:00 01/20 23:00 01/20 23:00
MI1 01/20 23:00 01/20 23:00 01/20 23:00
MM1 01/20 23:00 01/20 23:00  
MMR   01/11 08:00  
MO1 01/20 22:00 01/20 22:00 01/20 22:00
MOE      
MON 01/20 22:00 01/20 22:00 01/20 22:00
MS1 01/20 23:00 01/20 23:00  
MT1 01/20 22:00 01/20 22:00 01/20 22:00
NC2 01/20 23:00 01/20 23:00  
NCA 01/20 23:00 01/08 02:00 01/20 05:00
NE1      
NE2 01/20 22:00 01/20 22:00 01/20 22:00
NE4 01/20 23:00 01/20 23:00  
NH1 01/20 23:00 01/20 23:00 01/20 23:00
NJ1 01/20 22:00 01/20 22:00  
NL1 01/20 22:00 01/20 22:00  
NM2 01/20 23:00 01/20 23:00 01/20 23:00
NOS 01/20 21:00 01/20 23:00  
NPS 01/20 22:00 01/20 22:00  
NRB   01/20 23:14 01/20 23:14
NV2 01/20 23:00 01/20 23:00 01/20 23:00
NV3 01/20 22:00 01/20 22:00 01/20 22:00
NY1 01/20 22:00 01/20 22:00 01/20 22:00
OAP 01/20 00:00    
OAQ 01/12 22:00 01/12 22:00 01/12 22:00
OAR      
OH1 01/20 23:00 01/20 23:00 01/20 23:00
OK1 01/20 23:00 01/20 23:00 01/20 23:00
OR1 01/20 23:00 01/20 23:00  
OR2 10/01 17:00 01/20 23:00  
PA1 01/20 23:00 01/20 23:00 06/30 23:00
PA3 01/20 23:00 01/20 23:00  
PIN      
PR1 01/20 22:00 01/20 22:00 01/20 22:00
RI1 01/20 23:00 01/20 23:00  
RIY      
SC1 01/20 22:00 01/20 22:00 01/20 22:00
SD1 01/20 22:00 01/20 22:00 01/20 22:00
SFN 03/05 07:00    
SHA 01/20 23:00 01/20 23:00  
SIC      
SIS 01/20 23:00 01/20 23:00  
SK1 01/20 22:00 01/20 22:00 08/21 16:00
SLO 01/20 23:00 01/20 23:00 01/20 23:00
SMJ 08/07 09:00   08/07 09:00
SR1 01/17 10:00   01/17 10:00
SY1   01/20 23:00  
THM 01/21 00:00 01/21 00:00  
TN1 01/20 22:00 01/20 22:00  
TN2 01/20 23:00 01/20 22:00 10/01 00:00
TN3 01/20 22:00 01/20 22:00  
TN4   01/20 22:00  
TPCD 01/20 22:00 01/20 22:00 01/20 22:00
TRX 01/20 23:00 01/20 23:00 01/20 23:00
TX1 01/20 22:00 01/20 22:00 01/20 22:00
UDA      
UNR      
UT1 01/20 22:00 01/20 22:00 01/20 22:00
UTE 01/20 23:00 06/01 01:00  
UZB 01/20 22:00 01/20 22:00  
VA1 01/20 23:00 01/20 23:00  
VG1   01/21 00:12  
VT1 01/20 23:00 01/20 23:00 11/29 04:00
WI1 01/20 22:00 01/20 22:00 01/20 22:00
WT1 01/20 22:00    
WV1      
WV2 01/20 20:00 01/20 04:00