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 August 13, 2018, 15:20 (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

November 21, 2018 11:02 (ET) (All times are in ET)
Agency Ozone PM2.5 PM10
AB1 11/21 09:00 11/21 09:00 02/25 09:00
AIR      
AL1 11/21 09:00 11/21 09:00 03/01 09:00
AL2 11/21 09:00 11/21 09:00 11/21 09:00
AL3      
AL4 11/21 09:00 11/21 09:00  
ALG   04/04 07:00  
AR1 11/21 09:00 11/21 09:00  
AZ2 11/21 09:00 11/21 09:00 11/21 09:00
AZ3 11/21 09:00 11/21 09:00 11/21 09:00
AZ4 11/21 09:00 01/01 01:00 11/21 09:00
BAA   07/20 07:00  
BC1 11/21 09:00 11/21 09:00 11/21 09:00
BC2 11/21 09:00 11/21 09:00 11/21 09:00
BIH   11/21 09:00  
BK1      
BLW 11/21 09:00 04/01 01:00  
BPT 11/21 09:00 11/21 08:00 04/14 18:00
CA0 11/21 09:00 11/21 09:00 11/21 09:00
CA1 11/21 09:00 11/21 09:00 08/27 03:00
CA2 11/21 09:00 11/21 09:00  
CA3 11/21 09:00 11/21 09:00 11/21 09:00
CA4 11/21 09:00 11/21 09:00  
CA5 11/21 09:00 11/21 09:00 11/21 09:00
CA6 11/21 09:00 11/21 09:00 11/21 09:00
CA7 11/21 09:00 11/21 09:00 11/21 09:00
CA8 11/21 09:00 11/21 10:00 11/21 09:00
CA9 11/21 09:00 11/21 09:00 11/21 09:00
CAT 11/14 10:00 11/21 09:00  
CHO 11/21 01:00    
CK1 11/21 09:00 11/21 09:00 11/21 09:00
CMB   11/21 10:00  
CN1 11/21 09:00 11/21 09:00  
CN3 11/16 11:00 11/16 11:00 11/16 11:00
CN4 11/21 09:00 11/21 09:00  
CO1 11/21 09:00 11/21 09:00 11/21 09:00
CO4      
CT1 11/21 09:00 11/21 09:00 11/21 09:00
CUR 11/21 08:00 11/21 08:00  
DC1 11/21 09:00 11/21 09:00 11/21 09:00
DE1 11/21 09:00 11/21 09:00  
DN1      
DRN   04/24 01:00  
EP1      
EPA   08/21 12:00  
FL1 11/21 09:00 11/21 09:00 11/21 09:00
FL2 11/20 08:00 11/20 08:00 09/29 15:00
FL3 11/21 09:00 11/21 09:00 11/21 09:00
FL4 11/21 09:00 11/21 09:00 11/21 09:00
FS1 11/21 10:00 11/21 10:00 08/05 04:00
GBU 11/21 09:00 11/21 09:00 11/21 09:00
GOL      
HC1   11/21 08:00  
HI1 11/21 09:00 11/21 09:00 11/21 09:00
IA1 11/21 09:00 11/21 09:00 11/21 09:00
IA2 11/21 09:00 11/21 09:00  
IA3 11/01 12:00 11/21 09:00  
ID1 11/21 09:00 11/21 10:00 11/21 09:00
IEG 11/21 10:00 11/21 10:00 11/21 10:00
IL1 11/21 09:00 11/21 09:00  
IN4 11/21 09:00 11/21 09:00 11/21 09:00
IRQ      
JDA   05/18 01:11  
JP1 12/30 02:00 12/30 02:00 12/30 02:00
KAZ   11/21 08:00  
KM1 11/21 10:00 11/21 10:00  
KS1 11/21 09:00 11/21 09:00 11/21 09:00
KY1 11/21 09:00 11/21 09:00  
KY2 11/21 09:00 11/21 09:00 11/21 09:00
LA1 11/21 09:00 11/21 09:00 09/01 00:00
LC1      
MA1 11/21 09:00 11/21 09:00  
ME1 11/21 09:00 11/21 09:00 11/21 09:00
MEN 11/21 09:00 11/21 09:00 11/21 09:00
MI1 11/21 09:00 11/21 09:00 11/21 09:00
MM1 11/21 09:00 11/21 09:00  
MO1 11/21 08:00 11/21 08:00 11/21 08:00
MOE      
MON 11/21 08:00 11/21 09:00 11/21 08:00
MS1 11/21 09:00 11/21 09:00  
MT1 11/21 09:00 11/21 09:00 11/21 09:00
NC1 11/21 09:00 11/21 09:00 11/21 09:00
NC2 11/21 09:00 11/21 09:00  
NCA 11/21 09:00 11/21 09:00 11/20 08:00
NE1     11/21 09:00
NE2 11/21 09:00 11/21 09:00 11/21 09:00
NE4 11/21 09:00 11/21 09:00  
NH1 11/21 09:00 11/21 09:00 11/21 09:00
NJ1 11/21 09:00 11/21 09:00  
NL1 11/21 09:00 11/21 09:00  
NM2 11/21 09:00 11/21 09:00 11/21 09:00
NOS 11/21 08:00 11/21 10:00  
NPS 11/21 09:00 11/21 10:00  
NRB   11/21 10:13 11/21 10:13
NV2 11/21 09:00 11/21 09:00 11/21 09:00
NV3 11/21 09:00 11/21 09:00 11/21 09:00
NY1 11/21 09:00 11/21 09:00 11/21 09:00
OAP 11/21 10:00    
OAQ 11/21 09:00 11/21 09:00 11/21 09:00
OAR      
OH1 11/21 09:00 11/21 09:00 11/21 09:00
OK1 11/21 09:00 11/21 09:00 11/21 09:00
OR1 11/21 08:00 11/21 08:00  
OR2 10/01 17:00 11/21 09:00  
PA1 11/21 09:00 11/21 09:00 12/31 23:00
PA3 11/21 09:00 11/21 09:00  
PIN      
PR1 11/21 09:00 11/21 09:00 11/21 09:00
RI1 11/21 09:00 11/21 09:00  
RIY      
SC1 11/21 09:00 11/21 09:00 11/21 09:00
SD1 11/21 09:00 11/21 09:00 11/21 09:00
SFN 03/05 07:00    
SHA 11/21 09:00 11/21 09:00  
SIC      
SIS 11/21 09:00 11/21 09:00  
SK1 11/21 09:00 11/21 09:00 08/21 16:00
SLO 11/21 09:00 11/21 09:00 11/21 09:00
SMJ 08/07 09:00   08/07 09:00
SR1 11/21 09:00   11/21 09:00
SY1   11/21 09:00  
THM 11/21 10:00 11/21 10:00  
TN1 11/21 09:00 11/21 09:00  
TN2 11/21 09:00 11/21 08:00 07/01 00:00
TN3 11/21 09:00 11/21 09:00  
TN4   11/21 09:00  
TPCD 11/21 09:00 11/21 09:00 11/21 09:00
TRX 11/21 09:00 11/21 09:00 11/21 09:00
TX1 11/21 09:00 11/21 09:00 11/21 09:00
UDA      
UNR      
UT1 11/21 09:00 11/21 09:00 11/21 09:00
UTE 11/21 09:00 06/01 01:00  
UZB   11/21 08:00  
VA1 11/21 09:00 11/21 09:00  
VG1   11/21 11:00  
VT1 11/21 09:00 11/21 09:00 11/21 02:00
WI1 11/21 08:00 11/21 08:00 11/21 08:00
WT1 11/21 09:00    
WV1      
WV2 11/21 09:00 11/21 04:00