Air Quality Monitor

This page displays current air quality data for the Alamo Lake monitor, which is operated by the Arizona Department of Environmental Quality. All data are preliminary.

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Current Air Quality: Alamo Lake

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

46 ppb

Past 48-Hours


PM10

2 µg/m3

Past 48-Hours


PM2.5

N/A

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
PM10
PM2.5
1/26/2023
45
3
1.2
1/27/2023
41
2
-0.2
1/28/2023
42
5
1.7
1/29/2023
47
6
1.2
1/30/2023
43
8
0.4
1/31/2023
41
11
1.6
2/1/2023
45
5
0.3

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
PM10
PM2.5
Daily High For February 2
47
2/2/2018
22
2/2/2022
5.5
2/2/2018
Daily Low For February 2
29
2/2/2021
3
2/2/2015
-0.2*
2/2/2016
Monthly High For February
55
2/28/2016
90
2/15/2022
11.9
2/21/2022
Monthly Low For February
27
2/29/2012
1
2/11/2014
-3.2*
2/17/2016
All-Time High
83
6/3/2008
328
7/11/2021
48.9
7/11/2021
All-Time Low
21
11/3/2011
0
1/25/2017
-6.1*
8/1/2016

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.
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Historical Data

Access historical data from the monitor. Historical Data >