Air Quality Monitor

Updated On: 3/31/2023 - 9:31 AM
This page displays current air quality data for the Glendale monitor, which is operated by the Maricopa County Air Quality Department. All data are preliminary.

View all monitors >

Current Air Quality: Glendale Updated: 3/31/2023 - 9:31 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

25 ppb

Past 48-Hours

PM10

22 µg/m3

Past 48-Hours

PM2.5

5.2 µg/m3

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
PM10
(µg/m3)
24-Hour Avg
PM2.5
(µg/m3)
24-Hour Avg
3/24/2023
49
11
3.6
3/25/2023
3/26/2023
52
5
1.5
3/27/2023
54
7
2.7
3/28/2023
56
12
4.0
3/29/2023
53
18
6.1
3/30/2023
51
13
1.9

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
PM10
(µg/m3)
24-Hour Avg
PM2.5
(µg/m3)
24-Hour Avg
Daily High For March 31
61
3/31/1996
54
3/31/2017
8.9
3/31/2017
Daily Low For March 31
0
3/31/1979
13
3/31/2020
3.4
3/31/2016
Monthly High For March
76
3/23/1981
85
3/26/2014
13.3
3/28/2012
Monthly Low For March
0
3/21/1996
1
3/12/2019
-0.1*
3/1/2023
All-Time High
108
8/11/1980
337
6/27/2012
113.9
1/1/2016
All-Time Low
0
3/21/1996
1
12/27/2019
-0.2*
2/17/2021
*Negative values can occur when concentrations are below the detectable limits of the instrument.
Period of Record By Pollutant:
Ozone - 10/10/1974
PM10 - 9/25/2009
PM2.5 - 6/1/2011
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.
Date
Concentration (µg/m3)
1/1/2023
67
View past years >

Historical Data

Access historical data from the monitor. Historical Data >