The AirNow Discussion Forum

The EPA and the AirNow Data Management Center (DMC) have introduced the AirNow Discussion Forum to the community.

Located under the Help tab or at forum.airnowtech.org, the AirNow forum is a place to ask questions and join a discussion on various AirNow topics, including

  • NowCast and AQI calculations
  • Data Analysis Tools
  • Data Delivery & Quality Control
  • Forecasting & Reporting Areas
  • EnviroFlash
  • AirNowAPI
The website is publicly available. However, an AirNow-Tech account is needed to to login and post/reply to topics.

Thank you for your attention.

Posted April 9, 2018, 14:46 (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 17, 2018 06:07 (ET) (All times are in ET)
Agency Ozone PM2.5 PM10
AB1 07/17 04:00 07/17 04:00 02/25 09:00
AIR      
AL1 07/17 04:00 07/17 04:00 10/28 13:00
AL2 07/17 05:00 07/17 05:00 07/17 05:00
AL3      
AL4 07/17 04:00 07/17 04:00  
ALG   04/04 07:00  
AR1 07/17 04:00 07/17 04:00  
AZ2 07/17 04:00 07/17 04:00 07/17 04:00
AZ3 07/17 05:00 07/17 05:00 07/17 05:00
AZ4 07/16 17:00 01/01 01:00 07/16 17:00
BAA   07/16 07:00  
BC1 07/17 04:00 07/17 04:00 07/17 04:00
BC2 07/17 04:00 07/17 04:00 07/17 04:00
BIH   07/17 04:00  
BK1      
BLW 06/21 04:00 01/01 01:00  
BPT 07/17 04:00 07/17 03:00 04/14 18:00
CA0 07/17 04:00 07/17 04:00 07/17 04:00
CA1 07/17 05:00 07/17 05:00 08/27 03:00
CA3 07/17 04:00 07/17 04:00 07/17 04:00
CA4 07/17 04:00 07/17 04:00  
CA5 07/17 05:00 07/17 04:00 07/17 04:00
CA6 07/17 04:00 07/17 04:00 07/17 04:00
CA7 07/17 04:00 07/17 04:00 07/17 04:00
CA8 07/17 04:00 07/17 05:00 07/17 04:00
CA9 07/17 05:00 07/17 05:00 07/17 05:00
CAT 07/17 04:00 07/17 04:00  
CHO 07/17 04:00    
CK1 07/17 04:00 07/17 04:00 07/17 04:00
CMB   07/17 05:00  
CN1 07/17 04:00 07/17 04:00  
CN3 07/10 10:00 07/10 10:00 07/10 10:00
CN4 07/17 04:00 07/17 04:00  
CO1 07/17 05:00 07/17 05:00 07/17 05:00
CO4      
CT1 07/17 06:07 07/17 06:05 07/17 04:00
CUR 07/17 03:00 07/17 03:00  
DC1 07/16 15:00 07/17 05:00 07/16 15:00
DE1 07/17 04:00 07/17 04:00  
DN1      
DRN   04/24 01:00  
EP1      
EPA   08/21 12:00  
FL1 07/17 04:00 07/17 04:00 07/17 04:00
FL2 07/17 05:00 07/17 05:00 06/05 13:22
FL3 07/17 04:00 07/17 04:00 07/17 04:00
FL4 07/17 04:00 07/17 04:00 07/17 04:00
FS1   07/17 06:00 08/05 04:00
GBU 07/17 04:00 07/17 05:00 07/17 04:00
GOL      
HC1   07/17 04:00  
HI1 07/17 04:00 07/17 04:00 07/17 04:00
IA1 07/17 05:00 07/17 04:00 07/17 04:00
IA2 07/17 04:00 07/17 04:00  
IA3 07/17 05:00 07/17 04:00  
ID1 07/17 04:00 07/17 04:00 07/17 04:00
IEG 07/17 05:00 07/17 05:00 07/17 05:00
IL1 07/17 04:00 07/17 04:00  
IN4 07/17 04:00 07/17 04:00 07/17 04:00
JDA   05/18 01:11  
JP1 12/30 02:00 12/30 02:00 12/30 02:00
KAZ   07/17 03:00  
KM1 07/17 05:00 07/17 05:00  
KS1 07/17 04:00 07/17 04:00 07/17 04:00
KY1 07/17 04:00 07/17 04:00  
KY2 07/17 04:00 07/17 04:00 07/17 04:00
LA1 07/17 05:00 07/17 05:00 06/01 00:00
LC1      
MA1 07/17 04:00 07/17 04:00  
ME1 07/17 04:00 07/17 04:00 07/17 04:00
MEN 07/17 05:00 07/17 05:00 07/17 05:00
MI1 07/17 05:00 07/17 05:00 07/17 05:00
MM1 07/17 05:00 07/17 05:00  
MO1 07/17 05:00 07/17 05:00 07/17 05:00
MOE      
MON 07/17 04:00 07/17 04:00 07/17 04:00
MS1 07/17 04:00 07/17 04:00  
MT1 07/17 04:00 07/17 04:00 07/17 04:00
NC1 07/17 04:00 07/17 04:00 07/17 04:00
NC2 07/17 04:00 07/17 04:00  
NC3 07/17 04:00 07/17 04:00 03/31 23:00
NCA 07/17 04:00 05/18 13:00 07/15 13:00
NE1     07/17 05:00
NE2 07/17 04:00 07/17 04:00 07/17 04:00
NE4 07/17 05:00 07/17 05:00  
NH1 07/17 04:00 07/17 04:00 07/17 04:00
NJ1 07/17 04:00 07/17 04:00  
NL1 07/17 04:00 07/17 04:00  
NM2 07/17 04:00 07/17 04:00 07/17 04:00
NOS 07/17 04:00 07/17 04:00  
NPS 07/17 04:00 07/17 06:00  
NRB   07/17 05:36 07/17 05:36
NV2 07/17 04:00 07/17 04:00 07/17 04:00
NV3 07/17 04:00 07/17 04:00 07/17 04:00
NY1 07/17 04:00 07/17 04:00 03/30 12:00
OAP 07/17 04:00    
OAQ 07/17 04:00 07/17 04:00 07/17 04:00
OAR      
OH1 07/17 04:00 07/17 04:00 07/17 04:00
OK1 07/17 05:00 07/17 05:00 07/17 05:00
OR1 07/17 04:00 07/17 04:00  
OR2 07/17 05:00 07/17 05:00  
PA1 07/17 01:00 07/17 01:00 12/31 23:00
PA3 07/17 04:00 07/17 04:00  
PIN 06/08 23:00    
PR1   07/17 04:00 07/14 01:00
QT1 07/17 04:00 07/17 04:00  
RI1 07/17 05:00 07/17 05:00  
RIY      
SC1 07/17 04:00 07/17 04:00 07/17 04:00
SD1 07/17 04:00 07/17 04:00 07/17 04:00
SFN 03/05 07:00    
SHA 07/17 03:00 07/17 03:00  
SIC      
SIS 07/17 04:00 07/17 04:00  
SK1 07/17 04:00 07/17 04:00 08/21 16:00
SLO 07/17 05:00 07/17 05:00 07/17 05:00
SMJ 08/07 09:00   08/07 09:00
SR1 07/17 05:00   07/17 05:00
SY1   07/11 13:00  
THM 07/17 05:00 07/17 05:00  
TN1 07/17 04:00 07/17 04:00  
TN2 07/16 13:00 07/16 12:00 02/19 15:58
TN3 07/17 04:00 07/17 04:00  
TN4 07/17 04:00 07/17 04:00  
TPCD 07/17 01:00 07/17 01:00 07/17 01:00
TRX 07/17 04:00 07/17 04:00 07/17 04:00
TX1 07/17 04:00 07/17 04:00 07/17 04:00
UDA      
UNR      
UT1 07/17 04:00 07/17 04:00 07/17 04:00
UTE 07/17 05:00 06/01 01:00  
UZB   07/17 03:00  
VA1 07/17 04:00 07/17 04:00  
VG1   07/17 06:05  
VT1 07/17 04:00 07/17 04:00  
WI1 07/17 03:00 07/17 03:00 07/17 03:00
WT1 07/17 04:00    
WV1      
WV2 07/16 20:00 07/16 20:00