Monthly System Maintenance 7:30 pm EDT to 2:30 am EDT Tuesday, June 27 into Wednesday, June 28, 2017

The AirNow Data Management Center will be performing routine system maintenance from 7:30 pm EDT to 2:30 am EDT on Tuesday, June 27 into Wednesday, June 28. During this time, AirNow-Tech will not be accessible. Data feeds and products will not update or be delayed until maintenance is completed.

Thank you,

EPA and the AirNow Data Management Center

Posted June 21, 2017, 10:44 (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

June 27, 2017 22:29 (ET) (All times are in ET)
Agency Ozone PM2.5 PM10
AB1 06/27 20:00 06/27 20:00 02/25 09:00
AIR      
AK1 06/27 21:00 06/27 21:00 06/27 21:00
AL1 06/27 21:00 06/27 21:00 10/28 13:00
AL2 06/27 21:00 06/27 21:00 06/27 21:00
AL3      
AL4 06/27 21:00 06/27 21:00  
AR1 06/27 21:00 06/27 21:00  
AZ1 06/27 20:00 06/27 21:00 06/27 21:00
AZ2 06/27 21:00 06/27 21:00 06/27 21:00
AZ3 06/27 21:00 06/27 21:00 06/27 21:00
AZ4 06/27 21:00   06/27 21:00
BC1 06/27 21:00 06/27 21:00 06/27 21:00
BC2 06/27 21:00 06/27 21:00 06/27 21:00
BLW 06/27 21:00 10/01 01:00  
CA0 06/27 21:00 06/27 21:00 06/27 21:00
CA1 06/27 21:00 06/27 21:00 08/27 03:00
CA2 06/27 21:00 06/27 21:00  
CA3 06/27 21:00 06/27 21:00 06/27 21:00
CA4 06/27 21:00 06/27 21:00  
CA5 06/27 21:00 06/27 21:00 06/27 21:00
CA6 06/27 20:00 06/27 20:00 06/27 20:00
CA7 06/27 21:00 06/27 21:00 06/27 21:00
CA8 06/27 21:00 06/27 21:00 06/27 21:00
CA9 06/27 21:00 06/27 21:00 06/27 21:00
CAT 06/27 16:00 06/06 14:00  
CHO 06/27 15:00    
CK1 06/27 21:00 06/27 21:00 06/27 21:00
CMB      
CN1 06/27 21:00 06/27 21:00  
CN2 06/27 22:00    
CN3 06/27 21:00 06/27 21:00 06/27 21:00
CN4 06/27 20:00 06/27 20:00  
CO1 06/27 21:00 06/27 21:00 06/27 21:00
CO4      
CT1 06/27 21:00 06/27 21:00 06/27 21:00
DC1 06/27 21:00 06/27 22:28 05/17 13:00
DE1 06/27 21:00 06/27 21:00  
DN1 06/19 08:00    
EP1      
EPA   08/21 12:00  
FL2 06/27 21:00 06/27 21:00  
FL3 06/27 21:00 06/27 21:00 06/27 21:00
FL4 06/27 21:00 06/27 21:00 06/27 21:00
FS1   06/27 22:00 08/04 20:00
GBU 06/27 21:00 06/27 21:00 06/27 21:00
GOL      
HI1 06/27 21:00 06/27 21:00 06/27 21:00
IA1 06/27 21:00 06/27 21:00 06/27 21:00
IA2 06/27 21:00 06/27 21:00  
IA3 06/27 21:00 06/27 21:00  
ID1 06/27 21:00 06/27 21:00 06/27 21:00
IEG 06/27 21:00 06/27 21:00 06/27 21:00
IL1 06/27 21:00 06/27 21:00  
IN4 06/27 21:00 06/27 21:00 06/27 21:00
JP1 12/30 02:00 12/30 02:00 12/30 02:00
KM1 06/27 21:00 06/27 21:00  
KS1 06/27 21:00 06/27 21:00 06/27 21:00
KY1 06/27 21:00 06/27 21:00  
LA1 06/27 21:00 06/27 21:00 06/27 21:00
LC1      
MA1 06/27 21:00 06/27 21:00  
MD1 06/27 21:00 06/27 21:00  
ME1 06/27 21:00 06/27 21:00 06/27 21:00
MEN 06/27 21:00 06/27 21:00 06/27 21:00
MI1 06/27 21:00 06/27 21:00 06/27 21:00
MM1 06/27 21:00 06/27 21:00  
MO1 06/27 21:00 06/27 21:00 06/27 21:00
MOE      
MON 06/27 20:00 06/27 20:00 06/27 20:00
MS1 06/27 21:00 06/27 21:00  
MT1 06/27 21:00 06/27 21:00 06/27 21:00
MX1 10/27 03:00 06/27 20:00 03/31 10:00
NC1 06/27 21:00 06/27 21:00 06/27 21:00
NC3 06/27 21:00 06/27 21:00 11/30 23:00
NCA 06/27 21:00 06/27 20:00  
NE1 06/27 21:00 06/27 21:00 06/27 19:00
NE2 06/27 21:00 06/27 21:00 06/27 21:00
NH1 06/27 21:00 06/27 21:00 06/27 21:00
NJ1 06/27 21:00 06/27 21:00  
NL1 06/27 21:00 06/27 21:00  
NM1 06/27 21:00 06/27 21:00 06/27 21:00
NM2 06/27 21:00 06/27 21:00 06/27 21:00
NOS 06/27 21:00 06/27 21:00  
NPS 06/27 21:00 06/27 22:00  
NV1 06/27 21:00 06/27 21:00 06/27 21:00
NV2 06/27 21:00 06/27 21:00 06/27 21:00
NV3 06/27 21:00 06/27 21:00  
NY1 06/27 21:00 06/27 21:00 06/27 21:00
OAP 06/27 21:00    
OAQ 06/27 21:00 06/27 21:00 06/27 21:00
OAR      
OH1 06/27 21:00 06/27 21:00 06/27 21:00
OK1 06/27 21:00 06/27 21:00 06/27 21:00
OR1 06/27 20:00 06/27 20:00  
OR2 06/27 21:00 06/27 21:00  
PA1 06/27 21:00 06/27 21:00 12/31 18:00
PA3 06/27 21:00 06/27 21:00  
PIN 06/08 23:00    
PR1 06/27 21:00 05/25 12:00 06/27 21:00
QT1 06/27 21:00 06/27 21:00  
RI1 06/27 21:00 06/27 21:00  
SC1 06/27 21:00 06/27 21:00 06/27 21:00
SD1 06/27 14:00 06/27 20:00 06/27 14:00
SFN 03/05 07:00    
SHA 06/27 21:00 06/27 21:00  
SIC      
SK1 06/27 21:00 06/27 21:00 08/21 16:00
SLO 06/27 21:00 06/27 21:00 06/27 21:00
SMJ 06/16 12:00   06/16 12:00
SR1 06/27 21:00   06/27 21:00
THM 09/01 10:00 02/10 16:00  
TN1 06/27 21:00 06/27 22:00  
TN2 06/27 21:00 06/27 20:00  
TN3 06/27 21:00 06/27 21:00  
TN4 06/27 21:00 06/27 21:00  
TPCD 01/30 19:00   01/30 19:00
TRX 06/27 21:00 06/27 21:00 06/27 21:00
TX1 06/27 21:00 06/27 21:00 06/27 21:00
UDA      
UNR      
UT1 06/27 21:00 06/27 21:00 04/26 13:00
UTE 06/27 21:00 06/01 01:00  
UTS 06/27 21:00 06/27 21:00  
VA1 06/27 21:00 06/27 21:00  
VG1   05/02 13:14  
VT1 06/27 21:00 06/27 21:00  
WI1 06/27 20:00 06/27 20:00 06/27 20:00
WT1 06/27 21:00    
WV1      
WV2 06/27 20:00 06/27 20:00