Air Quality Monitor

Updated On: 3/31/2023 - 8:32 AM
This page displays current air quality data for the Orange Grove monitor, which is operated by the Pima County Department of Environmental Quality. All data are preliminary.

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Current Air Quality: Orange Grove 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.

PM10

31 µg/m3

Past 48-Hours

PM2.5

6 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
PM10
(µg/m3)
24-Hour Avg
PM2.5
(µg/m3)
24-Hour Avg
3/24/2023
12
2.8
3/25/2023
23
6.7
3/26/2023
16
4.7
3/27/2023
17
3.8
3/28/2023
23
3.6
3/29/2023
20
3.0
3/30/2023
13
1.4

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
PM2.5
(µg/m3)
24-Hour Avg
Daily High For March 31
33
3/31/2021
5.7
3/31/2021
Daily Low For March 31
21
3/31/2022
1.6
3/31/2020
Monthly High For March
50
3/3/2021
9.3
3/29/2018
Monthly Low For March
4
3/13/2021
-0.8*
3/10/2020
All-Time High
182
10/12/2021
41.2
1/1/2018
All-Time Low
0
10/13/2018
-1.6*
7/31/2022
*Negative values can occur when concentrations are below the detectable limits of the instrument.
Period of Record By Pollutant:
PM10 - 7/1/2017
PM2.5 - 7/1/2017
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.
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Historical Data

Access historical data from the monitor. Historical Data >