Ostrava Poruba, Hlucin, Moravskoslezsky Kraj, Czechia 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
Ostrava Poruba, Hlucin, Moravskoslezsky Kraj, Czechia
AQI Trends: Highest and Lowest
Same Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 24 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Ostrava Poruba, Hlucin, Moravskoslezsky Kraj, Czechia
5 AM2nd Aug 2025
8 PM
4 AM3rd Aug 2025
29AQI
18AQI
40AQI
25AQI
In the last 24 hours,
Ostrava Poruba's AQI reached its highest point of 40 at 4 AM during the Night, while the lowest point, 18, was recorded at 12 PM during the Day between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Ostrava Poruba, Hlucin, Moravskoslezsky Kraj, Czechia
17°C14/22°C
19°C12/26°C
23°C16/30°C
17°C14/18°C
15°C12/20°C
14°C12/18°C
16°C13/21°C
15°C12/20°C
16°C12/20°C
20°C15/27°C
21°C15/27°C
21°C16/27°C
18°C14/23°C
16°C12/21°C
16°C13/21°C
19°C13/24°C
22°C15/29°C
24°C17/31°C
20°C15/25°C
20°C14/26°C
21°C15/27°C
20°C17/24°C
19°C17/23°C
17°C16/18°C
17°C15/20°C
17°C12/21°C
17°C12/23°C
17°C12/23°C
18°C13/23°C
20°C14/25°C
--°C/°C
29AQI
29AQI
29AQI
29AQI
2025 Days Vs Air Quality
Ostrava Poruba, Hlucin, Moravskoslezsky Kraj, Czechia
63%
135
30%
64
6%
12
1%
3
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Under WHO’s Safe Air Quality Limits: 63%
Health Risk Level:
Moderate
In 2025, 63% of 215 days were within WHO’s safe air quality limits, and 37% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Ostrava Poruba, Hlucin, Moravskoslezsky Kraj, Czechia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
74AQI
57AQI
44AQI
36AQI
91AQI
42AQI
47AQI
34AQI
32AQI
25AQI
24AQI
25AQI
38AQI
65AQI
67AQI
55AQI
52AQI
72AQI
71AQI
52AQI
61AQI
83AQI
63AQI
64AQI
52AQI
61AQI
50AQI
47AQI
28AQI
48AQI
52AQI
54AQI
74AQI
76AQI
104AQI
95AQI
76AQI
117AQI
116AQI
153AQI
153AQI
151AQI
136AQI
85AQI
98AQI
88AQI
87AQI
121AQI
108AQI
99AQI
108AQI
83AQI
74AQI
92AQI
126AQI
106AQI
130AQI
115AQI
71AQI
63AQI
56AQI
73AQI
80AQI
72AQI
73AQI
71AQI
89AQI
105AQI
78AQI
55AQI
45AQI
38AQI
55AQI
56AQI
69AQI
49AQI
48AQI
60AQI
60AQI
69AQI
86AQI
52AQI
62AQI
80AQI
96AQI
63AQI
76AQI
97AQI
86AQI
32AQI
69AQI
70AQI
52AQI
54AQI
47AQI
29AQI
25AQI
33AQI
38AQI
25AQI
49AQI
52AQI
55AQI
43AQI
37AQI
35AQI
45AQI
24AQI
17AQI
24AQI
34AQI
40AQI
34AQI
60AQI
51AQI
39AQI
36AQI
37AQI
38AQI
35AQI
37AQI
36AQI
42AQI
33AQI
26AQI
37AQI
41AQI
24AQI
34AQI
35AQI
35AQI
38AQI
45AQI
40AQI
26AQI
18AQI
19AQI
17AQI
16AQI
24AQI
33AQI
31AQI
18AQI
22AQI
25AQI
26AQI
26AQI
27AQI
17AQI
23AQI
32AQI
29AQI
32AQI
35AQI
33AQI
27AQI
22AQI
18AQI
20AQI
19AQI
27AQI
35AQI
36AQI
31AQI
37AQI
45AQI
44AQI
35AQI
40AQI
48AQI
35AQI
29AQI
27AQI
35AQI
32AQI
30AQI
29AQI
30AQI
27AQI
28AQI
26AQI
26AQI
26AQI
33AQI
32AQI
30AQI
33AQI
34AQI
33AQI
26AQI
21AQI
21AQI
22AQI
26AQI
29AQI
33AQI
34AQI
28AQI
29AQI
28AQI
33AQI
42AQI
23AQI
17AQI
23AQI
29AQI
50AQI
42AQI
29AQI
24AQI
21AQI
24AQI
26AQI
24AQI
52AQI
103AQI
68AQI
41AQI
29AQI
31AQI
29AQI
25AQI
No. of days
202550AQI
Highest AQI recorded in
February103AQI
Lowest AQI recorded in
August25AQI
202454AQI
Highest AQI recorded in
March70AQI
Lowest AQI recorded in
July43AQI
202352AQI
Highest AQI recorded in
March70AQI
Lowest AQI recorded in
July33AQI
202262AQI
Highest AQI recorded in
March96AQI
Lowest AQI recorded in
August34AQI
202155AQI
Highest AQI recorded in
December86AQI
Lowest AQI recorded in
August35AQI
202051AQI
Highest AQI recorded in
December118AQI
Lowest AQI recorded in
July35AQI
Most & Least Polluted Years Over the Last 6 Years
Ostrava Poruba's annual 2025 AQI (50) shows an average percentage change of -9.09% (improved AQI) compared to previous years: 2020 (51), 2021 (55), 2022 (62), 2023 (52), 2024 (54).