Ozone Monitor Stations - Arkansas

These readings represent one hour (1 hr) average ozone parts per million (ppm), as reported directly from the six ozone monitoring stations maintained by DEQ throughout the state. Automated readings are processed hourly throughout the day, starting at approximately 2 am through midnight central standard time (CST).

NOTE: This information is "raw data" as automatically collected and reported by the monitoring stations and has not been quality control checked, analyzed, or verified.

Ozone Monitor Stations - Arkansas Hourly Readings

Current Data

( Last Updated 07/02/2020 , at 09:15 AM CST )

Time
(CST)
Deer
Eagle Mountain
Fayetteville
Marion
N Little Rock
Airport
N Little Rock,
Pike Ave &
River Rd
Springdale
2 AM0.0190.0240.0160.0060.0120.0030.018
3 AM0.0180.0230.0120.0090.0090.0020.018
4 AM0.0170.0220.0090.0040.0080.0000.015
5 AM0.0170.0210.0080.0010.0080.0010.011
6 AM0.0180.0190.0050.0050.0080.0020.006
7 AM0.0190.0150.0080.0090.0090.0050.015
8 AM0.0210.0170.0200.0150.0120.0100.025
9 AM-0.999-0.9990.0260.019-0.9990.019-0.999

Yesterday's Data

( 07/01/2020 )

Time
(CST)
Deer
Eagle Mountain
Fayetteville
Marion
N Little Rock
Airport
N Little Rock,
Pike Ave &
River Rd
Springdale
2 AM0.0200.0160.0180.0120.0150.0110.021
3 AM0.0190.0160.0180.0120.0130.0100.021
4 AM0.0200.0150.0180.0120.0110.0080.021
5 AM0.0190.0150.0180.0110.0100.0080.019
6 AM0.0180.0150.0170.0100.0090.0070.018
7 AM0.0170.0140.0190.0120.0080.0050.018
8 AM0.0180.0130.0210.0160.0090.0070.024
9 AM0.0210.0140.0230.0190.0130.0110.026
10 AM0.0200.0150.0240.0220.0200.0190.026
11 AM0.0200.0140.0280.0240.0270.0240.029
12 Noon0.0220.0140.0310.0260.0260.0260.030
1 PM0.0200.0160.0310.0260.0280.0280.032
2 PM0.0180.0190.0300.0280.0280.0310.033
3 PM0.0190.0210.0280.0320.0270.0300.031
4 PM0.0210.0220.0270.0370.0330.0310.029
5 PM0.0220.0230.0270.0340.0350.0310.029
6 PM0.0210.0230.0260.0310.0330.0320.027
7 PM0.0190.0220.0250.0260.0250.0290.026
8 PM0.0190.0200.0220.0160.0220.0210.023
9 PM0.0160.0180.0160.0080.0180.0190.021
10 PM0.0190.0230.0160.0100.0180.0190.016
11 PM0.0200.0240.0160.0090.0150.0030.019
12 Midnight0.0200.0230.0180.0070.0150.0100.019

AQI Numbers

The range for the AQI is 0-500 and is related to air quality as follows:

Index
Values
O3
(8hr)
(ppm)
O3
(1hr)
(ppm)
Air
Quality
Colors
0 - 50 0.000 - 0.054 0.000 - 0.084 Good Green
51 - 100 0.055 - 0.070 0.085 - 0.124 Moderate Yellow
100 - 150 0.071 - 0.085 0.125 - 0.164 Unhealthy for
Sensitive Groups
Orange
151 - 200 0.086 - 0.105 0.165 - 0.204 Unhealthy Red
201 - 300 0.106 - 0.200 0.205 - 0.404 Very Unhealthy Purple
301 - 400 0.201 & above 0.405 - 0.604 Hazardous Maroon

Explanation of Pollutant Categories

Pollutant Sensitive Group
O3 = Ozone Children and people with asthma
ppm = parts per million (1 part pollutant in 1 million parts of air)