ACA

This is a data Summary dashboard for March 2026 ACA Monitorings

Monitored Data

Map

March 2026 ACA Data Summary Table

Readings above the AAAQO and AAAQG
Alberta Capital Airshed
SO₂
hour
172ppb
SO₂
day
48ppb
SO₂
month
11ppb
H₂S
hour
10ppb
H₂S
day
3ppb
TRS
30min
5ppb
NO₂
hour
159ppb
O₃
hour
76ppb
PM2.5
hour
80µg/m³
PM2.5
day
29µg/m³
CO
hour
13ppm
CO
8-hour
5ppm
March 2026
0 0 0 0 0 4 0 0 0 0 0 0
March 2025
0 0 0 0 0 3 0 0 0 0 0 0
Parameter ACA Edmonton East
N = 745
1
ACA Edmonton Lendrum
N = 745
1
ACA Edmonton McCauley
N = 745
1
ACA Enoch
N = 745
1
ACA OMorrow
N = 745
1
ACA Poachers Landing
N = 745
1
ACA St.Albert
N = 745
1
ACA Woodcroft
N = 745
1
Ardrossan
N = 743
1
Sherwood Park
N = 743
1
SO2 0.8 (93.6%) 0.6 (94.5%)

0.1 (95.2%)
0.4 (94.1%) 0.3 (95.2%) 0.7 (95.7%) 1.4 (96.9%)
NO 3.3 (94.8%) 2.6 (94.5%) 3.4 (94.8%) 1.6 (91.9%)

2.9 (93.8%) 3.4 (95.2%) 1.6 (99.2%) 2.1 (98.9%)
NO2 12.0 (94.8%) 10.4 (94.5%) 12.6 (94.8%) 6.4 (91.9%)

10.7 (93.8%) 12.2 (95.2%) 6.3 (99.2%) 8.0 (94.8%)
NOX 15.2 (94.8%) 13.0 (94.5%) 15.9 (94.8%) 8.0 (91.9%)

13.5 (93.8%) 15.6 (95.2%) 8.0 (99.2%) 10.2 (94.8%)
O3 23.7 (95.0%) 26.2 (94.5%) 25.7 (94.8%) 28.7 (91.9%)

26.9 (92.5%) 24.7 (95.2%) 29.1 (95.6%) 28.9 (99.3%)
PM2.5 6.1 (99.9%) 5.8 (100.0%) 8.4 (99.6%) 4.8 (98.9%) 4.3 (99.9%)
5.1 (99.9%) 9.0 (99.5%) 3.4 (99.9%) 5.5 (100.0%)
RH 78.8 (99.9%) 75.2 (100.0%) 67.2 (100.0%) 70.0 (99.1%) 70.6 (100.0%)
78.0 (99.2%) 68.8 (100.0%)

ET -4.2 (99.9%) -4.2 (100.0%) -4.1 (100.0%) -5.0 (99.1%) -8.3 (100.0%)
-5.1 (99.1%) -4.5 (100.0%) -5.0 (99.9%) -4.6 (100.0%)
BP



945.6 (100.0%) 949.4 (100.0%)



H2S 0.3 (95.0%)






0.1 (95.2%) 0.0 (99.3%)
TRS



0.3 (95.2%) 0.5 (95.0%)



THC 2.2 (85.5%)







2.0 (99.5%)
CH4 2.0 (85.5%)








NMHC 0.1 (85.5%)








CO 0.2 (94.8%)
0.2 (94.8%)






1 Mean (% Valid data)

March 2026 ACA AQHI Summary

AQHI Category ACA Edmonton East
N = 704
1
ACA Edmonton Lendrum
N = 704
1
ACA Edmonton McCauley
N = 705
1
ACA Enoch
N = 684
1
ACA St.Albert
N = 688
1
ACA Woodcroft
N = 709
1
Ardrossan
N = 713
1
Sherwood Park
N = 709
1
AQHI







    1-3 Low 670 (95%) 683 (97%) 632 (90%) 673 (98%) 655 (95%) 648 (91%) 713 (100%) 695 (98%)
    4-6 Moderate 34 (4.8%) 21 (3.0%) 73 (10%) 11 (1.6%) 33 (4.8%) 60 (8.5%)
14 (2.0%)
    7-10 High




1 (0.1%)

    Very High 10+







1 Count (% of total data)

Calendar Plots

Edmonton Woodcroft

AQHI

NO2

SO2

O3

PM2.5

St. Albert

AQHI

NO2

SO2

O3

PM2.5

Edmonton McCauley

AQHI

NO2

O3

PM2.5

CO

Edmonton Lendrum

AQHI

NO2

O3

PM2.5

SO2

Edmonton East

AQHI

NO2

O3

PM2.5

SO2

CO

THC

O’Morrow 1

SO2

TRS

PM2.5

Poachers Landing 2

TRS

Enoch

AQHI

NO2

O3

PM2.5

Nitrogen Dioxide (ppb)

Monthly plots

Readings above AAAQO

Readings above hourly AAAQO, Nitrogen Dioxide > 159ppb
[1] "No readings above hourly AAAQO"

Ozone (ppb)

Monthly plots

Readings above AAAQO

Readings above hourly AAAQO, Ozone > 76ppb
[1] "No readings above hourly AAAQO"

Particulate Matter (PM2.5)

Monthly plots

Readings above AAAQG and AAAQO

Readings above hourly AAAQG, PM2.5 > 80µg/m³
[1] "No readings above hourly AAAQG"
Readings above daily AAAQO, PM2.5 > 29µg/m³
[1] "No readings above daily AAAQO"

Sulphur Dioxide (ppb)

Monthly plots

Readings above AAAQO

Readings above hourly AAAQO, Sulphur Dioxide > 172ppb
[1] "No readings above hourly AAAQO"
Readings above daily AAAQO, Sulphur Dioxide > 48ppb
[1] "No readings above daily AAAQO"
Readings above monthly AAAQO, Sulphur Dioxide > 11ppb
[1] "No readings above monthly AAAQO"

Hydrogen Sulphide (ppb)

Monthly plots

Readings above AAAQO

Readings above hourly AAAQO, Hydrogen Sulphide > 10ppb
[1] "No readings above hourly AAAQO"
Readings above daily AAAQO, Hydrogen Sulphide > 3ppb
[1] "No readings above daily AAAQO"

Total Reduced Sulphur (ppb)

Monthly plots

Readings above AAAQO and AAAQG

Readings above 30min AAAQG, TRS > 5ppb
date OM wind speed OM wind direction PL wind speed PL wind direction site TRS
2026-03-17 10:30:00 9.4 236 9.5 238 ACA Poachers Landing 9.2
2026-03-17 11:00:00 10.5 233 10.7 240 ACA Poachers Landing 5.5
2026-03-17 11:30:00 10.7 229 11.3 241 ACA Poachers Landing 5.4
2026-03-19 04:30:00 11.4 241 8.4 233 ACA Poachers Landing 6.5
Readings above hourly AAAQO, using Hydrogen Sulphide > 10ppb for TRS
[1] "No readings above hourly AAAQO"
Readings above daily AAAQO, Hydrogen Sulphide > 3ppb for TRS
[1] "No readings above daily AAAQO"

Carbon Monoxide (ppm)

Monthly plots

Readings above AAAQO

Readings above hourly AAAQO, Carbon Monoxide > 13ppm
[1] "No readings above hourly AAAQO"
Readings above 8hr AAAQO, Carbon Monoxide > 5ppm
[1] "No readings above daily AAAQO"

Total Hydrocarbons (ppm)

Meterology

Temperature

Relative Humidity

Precipitation

Barometric Pressure

Wind Roses March 2026