Niven Lake 1, Yellowknife, Northwest Territories, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Niven Lake 1, Yellowknife, Northwest Territories, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (12th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 28 of Good air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 12th Aug - 13th Aug 2025
Niven Lake 1, Yellowknife, Northwest Territories, Canada
4 AM12th Aug 2025
10 PM
3 AM13th Aug 2025
48AQI
21AQI
34AQI
24AQI
In the last 24 hours,
Niven Lake 1's AQI reached its highest point of 48 at 5 PM during the Day, while the lowest point, 21, was recorded at 12 PM during the Day between 12th Aug and 13th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Niven Lake 1, Yellowknife, Northwest Territories, Canada
13°C7/18°C
16°C10/21°C
18°C12/23°C
19°C14/23°C
17°C12/23°C
16°C12/20°C
12°C10/14°C
10°C7/14°C
14°C8/19°C
15°C11/19°C
17°C13/21°C
16°C12/19°C
10°C9/11°C
11°C7/14°C
13°C10/16°C
14°C8/19°C
18°C12/25°C
22°C16/28°C
22°C16/28°C
18°C13/22°C
17°C13/20°C
17°C12/21°C
14°C11/18°C
13°C8/18°C
14°C9/21°C
19°C13/24°C
15°C13/17°C
15°C11/19°C
14°C11/18°C
14°C10/17°C
--°C/°C
38AQI
35AQI
36AQI
34AQI
2025 Days Vs Air Quality
Niven Lake 1, Yellowknife, Northwest Territories, Canada
94%
211
5%
11
0.8%
2
Total number of days with different AQI categories in last 225 days in 2025 (140 days remaining)
Under WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2025, 94% of 225 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Niven Lake 1, Yellowknife, Northwest Territories, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
37AQI
36AQI
52AQI
56AQI
40AQI
52AQI
50AQI
45AQI
40AQI
41AQI
32AQI
45AQI
46AQI
46AQI
28AQI
35AQI
35AQI
28AQI
28AQI
26AQI
28AQI
29AQI
29AQI
34AQI
28AQI
37AQI
29AQI
27AQI
29AQI
36AQI
41AQI
32AQI
31AQI
34AQI
32AQI
30AQI
49AQI
54AQI
44AQI
31AQI
34AQI
32AQI
35AQI
27AQI
26AQI
31AQI
41AQI
48AQI
42AQI
30AQI
35AQI
29AQI
30AQI
26AQI
21AQI
27AQI
35AQI
27AQI
24AQI
27AQI
28AQI
28AQI
32AQI
27AQI
27AQI
30AQI
24AQI
23AQI
31AQI
49AQI
26AQI
30AQI
26AQI
30AQI
34AQI
39AQI
33AQI
34AQI
37AQI
33AQI
29AQI
32AQI
32AQI
34AQI
26AQI
27AQI
30AQI
21AQI
24AQI
24AQI
20AQI
23AQI
19AQI
23AQI
18AQI
16AQI
17AQI
19AQI
33AQI
57AQI
44AQI
29AQI
32AQI
24AQI
24AQI
22AQI
20AQI
23AQI
15AQI
14AQI
16AQI
17AQI
16AQI
17AQI
17AQI
16AQI
18AQI
18AQI
19AQI
20AQI
23AQI
22AQI
18AQI
23AQI
21AQI
24AQI
19AQI
19AQI
19AQI
19AQI
17AQI
23AQI
21AQI
21AQI
24AQI
29AQI
23AQI
17AQI
26AQI
22AQI
20AQI
30AQI
19AQI
20AQI
21AQI
22AQI
19AQI
18AQI
52AQI
54AQI
109AQI
131AQI
29AQI
24AQI
18AQI
58AQI
28AQI
18AQI
17AQI
46AQI
26AQI
32AQI
30AQI
26AQI
22AQI
19AQI
24AQI
22AQI
20AQI
21AQI
21AQI
28AQI
31AQI
39AQI
34AQI
40AQI
41AQI
36AQI
39AQI
40AQI
25AQI
21AQI
34AQI
22AQI
26AQI
30AQI
43AQI
57AQI
44AQI
31AQI
32AQI
27AQI
31AQI
31AQI
34AQI
34AQI
39AQI
53AQI
58AQI
44AQI
36AQI
27AQI
27AQI
30AQI
32AQI
24AQI
24AQI
22AQI
26AQI
47AQI
42AQI
45AQI
43AQI
50AQI
37AQI
39AQI
35AQI
37AQI
30AQI
32AQI
33AQI
40AQI
25AQI
28AQI
37AQI
33AQI
30AQI
22AQI
26AQI
33AQI
35AQI
36AQI
No. of days
202531AQI
Highest AQI recorded in
January37AQI
Lowest AQI recorded in
April22AQI
202431AQI
Highest AQI recorded in
December49AQI
Lowest AQI recorded in
October18AQI
202355AQI
Highest AQI recorded in
September128AQI
Lowest AQI recorded in
December24AQI
202221AQI
Highest AQI recorded in
July31AQI
Lowest AQI recorded in
August11AQI
202116AQI
Highest AQI recorded in
July23AQI
Lowest AQI recorded in
September9AQI
202015AQI
Highest AQI recorded in
March28AQI
Lowest AQI recorded in
October11AQI
Most & Least Polluted Years Over the Last 6 Years
Niven Lake 1's annual 2025 AQI (31) shows an average percentage change of 39.8% (worsened AQI) compared to previous years: 2020 (15), 2021 (16), 2022 (21), 2023 (55), 2024 (31).