Air Quality Monitor

Updated On: 3/31/2023 - 9:31 AM
This page displays current air quality data for the Hayden monitor, which is operated by the Arizona Department of Environmental Quality. All data are preliminary.

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Current Air Quality: Hayden 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.

PM10

14 µg/m3

Past 48-Hours

SO2

-0.6 ppb

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
PM10
(µg/m3)
24-Hour Avg
SO2
(ppb)
Max 1-Hour
3/24/2023
9
-0
3/25/2023
17
-0
3/26/2023
15
-0
3/27/2023
11
0
3/28/2023
15
-0
3/29/2023
16
-0
3/30/2023
14
-0

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.
PM10
(µg/m3)
24-Hour Avg
SO2
(ppb)
Max 1-Hour
Daily High For March 31
126
3/31/2017
982.2
3/31/1976
Daily Low For March 31
12
3/31/2020
0.0
3/31/2021
Monthly High For March
308
3/29/2022
2960.0
3/8/1972
Monthly Low For March
2
3/13/2021
-0.4
3/30/2023
All-Time High
407
4/8/2013
10240.0
10/7/1971
All-Time Low
0
1/16/2023
-0.7
8/22/2022
*Negative values can occur when concentrations are below the detectable limits of the instrument.
Period of Record By Pollutant:
PM10 - 12/23/2005
SO2 - 1/17/1969
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.
Date
Concentration (µg/m3)
2/14/2023
243
No exceedance days.
View past years >

Historical Data

Access historical data from the monitor. Historical Data >