North West University Vaal Campus, Vanderbijlpark, Gauteng, South Africa 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
North West University Vaal Campus, Vanderbijlpark, Gauteng, South Africa
AQI Trends: Highest and Lowest
Same Day Analysis (20th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 64 of Moderate air quality, showing improvement over 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Aug - 22nd Aug 2025
North West University Vaal Campus, Vanderbijlpark, Gauteng, South Africa
6 AM21st Aug 2025
5 PM
5 AM22nd Aug 2025
AQI
AQI
78AQI
56AQI
In the last 24 hours,
North West University Vaal Campus's AQI reached its highest point of 78 at 9 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 21st Aug and 22nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
North West University Vaal Campus, Vanderbijlpark, Gauteng, South Africa
12°C7/17°C
13°C8/18°C
13°C9/19°C
13°C9/20°C
10°C4/17°C
10°C4/16°C
10°C5/16°C
11°C5/18°C
13°C7/22°C
10°C4/17°C
11°C4/19°C
12°C6/19°C
13°C7/22°C
13°C7/21°C
13°C6/20°C
10°C5/15°C
12°C7/18°C
14°C9/20°C
14°C10/21°C
13°C6/20°C
15°C9/21°C
15°C10/21°C
16°C9/23°C
17°C12/22°C
16°C13/22°C
16°C10/22°C
16°C10/22°C
18°C12/25°C
18°C12/26°C
--°C/°C
--°C/°C
75AQI
63AQI
70AQI
64AQI
2025 Days Vs Air Quality
North West University Vaal Campus, Vanderbijlpark, Gauteng, South Africa
21%
48
79%
184
Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)
Under WHO’s Safe Air Quality Limits: 21%
Health Risk Level:
Very high
In 2025, 21% of 233 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
Annual Air Quality Insights
North West University Vaal Campus, Vanderbijlpark, Gauteng, South Africa
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
94AQI
87AQI
83AQI
77AQI
77AQI
77AQI
80AQI
78AQI
77AQI
70AQI
65AQI
63AQI
63AQI
74AQI
67AQI
72AQI
70AQI
75AQI
74AQI
70AQI
67AQI
66AQI
66AQI
69AQI
67AQI
65AQI
62AQI
60AQI
62AQI
66AQI
67AQI
66AQI
69AQI
69AQI
71AQI
76AQI
74AQI
75AQI
80AQI
80AQI
83AQI
82AQI
80AQI
70AQI
54AQI
69AQI
45AQI
42AQI
38AQI
37AQI
31AQI
28AQI
36AQI
38AQI
28AQI
29AQI
25AQI
27AQI
29AQI
28AQI
20AQI
16AQI
14AQI
11AQI
12AQI
14AQI
12AQI
17AQI
15AQI
14AQI
13AQI
18AQI
22AQI
25AQI
26AQI
29AQI
32AQI
33AQI
38AQI
46AQI
52AQI
55AQI
57AQI
58AQI
60AQI
58AQI
54AQI
54AQI
55AQI
51AQI
45AQI
45AQI
53AQI
46AQI
36AQI
36AQI
43AQI
49AQI
48AQI
46AQI
48AQI
47AQI
51AQI
53AQI
55AQI
52AQI
52AQI
51AQI
51AQI
54AQI
52AQI
53AQI
51AQI
49AQI
50AQI
55AQI
52AQI
52AQI
53AQI
54AQI
55AQI
49AQI
54AQI
54AQI
60AQI
63AQI
67AQI
67AQI
69AQI
74AQI
71AQI
65AQI
67AQI
67AQI
69AQI
72AQI
69AQI
69AQI
77AQI
75AQI
64AQI
65AQI
63AQI
65AQI
75AQI
79AQI
77AQI
78AQI
86AQI
82AQI
79AQI
79AQI
75AQI
85AQI
80AQI
78AQI
80AQI
88AQI
87AQI
78AQI
71AQI
71AQI
73AQI
74AQI
84AQI
79AQI
79AQI
75AQI
75AQI
75AQI
72AQI
70AQI
69AQI
69AQI
71AQI
69AQI
65AQI
60AQI
62AQI
62AQI
62AQI
64AQI
76AQI
75AQI
68AQI
74AQI
76AQI
71AQI
72AQI
74AQI
74AQI
80AQI
83AQI
81AQI
77AQI
73AQI
81AQI
94AQI
97AQI
85AQI
70AQI
67AQI
65AQI
66AQI
71AQI
69AQI
64AQI
62AQI
54AQI
59AQI
65AQI
67AQI
60AQI
65AQI
68AQI
76AQI
73AQI
75AQI
62AQI
65AQI
70AQI
72AQI
64AQI
65AQI
67AQI
76AQI
83AQI
80AQI
65AQI
58AQI
57AQI
64AQI
71AQI
55AQI
33AQI
49AQI
69AQI
74AQI
73AQI
68AQI
No. of days
202561AQI
Highest AQI recorded in
June74AQI
Lowest AQI recorded in
March33AQI
202428AQI
Highest AQI recorded in
December80AQI
Lowest AQI recorded in
April3AQI
202359AQI
Highest AQI recorded in
August88AQI
Lowest AQI recorded in
December37AQI
202266AQI
Highest AQI recorded in
August92AQI
Lowest AQI recorded in
January42AQI
202168AQI
Highest AQI recorded in
July98AQI
Lowest AQI recorded in
January13AQI
202078AQI
Highest AQI recorded in
July104AQI
Lowest AQI recorded in
December22AQI
Most & Least Polluted Years Over the Last 6 Years
North West University Vaal Campus's annual 2025 AQI (61) shows an average percentage change of 16.2% (worsened AQI) compared to previous years: 2020 (78), 2021 (68), 2022 (66), 2023 (59), 2024 (28).