Air Quality Monitor
Updated On: 3/31/2023 - 8:32 AM
This page displays current air quality data for the Mesa monitor, which is operated by the Maricopa County Air Quality Department.
All data are preliminary. View all monitors >
Current Air Quality: Mesa Updated: 3/31/2023 - 8:32 AM
Current concentrations for each available pollutant, along with a graph displaying hourly data over the past 48-hours. The colors are using the AQI color scheme to highlight periods of good or poor air quality. Values are updated hourly at 30 minutes past the hour.Ozone
Past 48-Hours
PM10
Past 48-Hours
PM2.5
Past 48-Hours
CO
Past 48-Hours
Past Seven Days
Concentration values for the past seven days for each available pollutant. While the table displays concentrations, the color corresponds to the Air Quality Index (AQI).Date
Ozone
(ppb)
Max 8-Hour Avg
Max 8-Hour Avg
PM10
(µg/m3)
24-Hour Avg
24-Hour Avg
PM2.5
(µg/m3)
24-Hour Avg
24-Hour Avg
CO
(ppm)
Max 8-Hour Avg
Max 8-Hour Avg
3/24/2023
50
13
4.3
0.2
3/25/2023
55
17
7.2
0.2
3/26/2023
54
11
5.1
0.2
3/27/2023
56
9
3.7
0.2
3/28/2023
57
11
4.8
0.4
3/29/2023
56
22
6.0
0.3
3/30/2023
51
12
2.6
0.2
Station History
The table displays the current day, month, and all-time high and low concentrations for each pollutant, along with the day on which the value occurred. If a tie occurs, the date displayed will be the most recent occurrence.Ozone
(ppb)
Max 8-Hour Avg
Max 8-Hour Avg
PM10
(µg/m3)
24-Hour Avg
24-Hour Avg
PM2.5
(µg/m3)
24-Hour Avg
24-Hour Avg
CO
(ppm)
Max 8-Hour Avg
Max 8-Hour Avg
Daily High For March 31
69
3/31/1996
3/31/1996
70
3/31/2017
3/31/2017
13.3
3/31/2017
3/31/2017
3.9
3/31/1979
3/31/1979
Daily Low For March 31
35
3/31/1990
3/31/1990
14
3/31/2022
3/31/2022
3.7
3/31/2013
3/31/2013
0.2
3/31/2005
3/31/2005
Monthly High For March
76
3/10/1989
3/10/1989
101
3/13/2014
3/13/2014
13.6
3/13/2014
3/13/2014
9.5
3/9/1979
3/9/1979
Monthly Low For March
8
3/10/1990
3/10/1990
1
3/13/2020
3/13/2020
1.1
3/21/2019
3/21/2019
0.0
3/22/2009
3/22/2009
All-Time High
99
4/29/1996
4/29/1996
257
8/2/2018
8/2/2018
83.0
1/1/2016
1/1/2016
12.0
11/7/1980
11/7/1980
All-Time Low
0
1/3/1991
1/3/1991
1
3/13/2020
3/13/2020
0.5
1/3/2013
1/3/2013
0.0
2/25/2023
2/25/2023
*Negative values can occur when concentrations are below the detectable limits of the instrument.
Period of Record By Pollutant:
Ozone - 8/11/1980
PM10 - 11/1/2012
PM2.5 - 11/1/2012
CO - 4/5/1978
Note: Gaps may exist in the period of record and is only for continous monitor data (not filter).
Period of Record By Pollutant:
Ozone - 8/11/1980
PM10 - 11/1/2012
PM2.5 - 11/1/2012
CO - 4/5/1978
Note: Gaps may exist in the period of record and is only for continous monitor data (not filter).
Exceedances This Year
A list of the number of exceedances since the start of the year for each available pollutant. Expand the pollutant to view the date and concentration of each exceedance.No exceedance days.
No exceedance days.
No exceedance days.
No exceedance days.
View past years >