Brevnov, Stredocesky Kraj, Czechia Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Brevnov, Stredocesky Kraj, Czechia
AQI Trends: Highest and Lowest
Same Day Analysis (7th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 48 of Good air quality, showing improvement over 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 7th Oct - 8th Oct 2025
Brevnov, Stredocesky Kraj, Czechia
6 AM7th Oct 2025
7 PM
5 AM8th Oct 2025
46AQI
41AQI
65AQI
48AQI
In the last 24 hours,
Brevnov's AQI reached its highest point of 65 at 12 AM during the Night, while the lowest point, undefined, was recorded at 12 PM during the Day between 7th Oct and 8th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Brevnov, Stredocesky Kraj, Czechia
17°C11/22°C
18°C12/24°C
17°C14/23°C
17°C12/23°C
16°C13/20°C
16°C12/21°C
14°C11/18°C
16°C10/23°C
15°C12/19°C
14°C11/19°C
17°C12/25°C
20°C14/26°C
21°C14/29°C
21°C15/28°C
13°C11/15°C
12°C11/14°C
12°C10/14°C
9°C7/9°C
11°C9/13°C
13°C9/19°C
13°C9/19°C
11°C7/15°C
10°C7/14°C
9°C6/12°C
8°C5/12°C
9°C6/13°C
8°C3/12°C
10°C8/12°C
11°C9/13°C
12°C10/16°C
--°C/°C
38AQI
30AQI
34AQI
31AQI
2025 Days Vs Air Quality
Brevnov, Stredocesky Kraj, Czechia
73%
203
23%
63
5%
14
Total number of days with different AQI categories in last 281 days in 2025 (84 days remaining)
Under WHO’s Safe Air Quality Limits: 73%
Health Risk Level:
Low
In 2025, 73% of 281 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Brevnov, Stredocesky Kraj, Czechia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
75AQI
31AQI
32AQI
37AQI
65AQI
72AQI
37AQI
25AQI
25AQI
28AQI
26AQI
34AQI
39AQI
67AQI
44AQI
46AQI
51AQI
75AQI
76AQI
75AQI
68AQI
81AQI
52AQI
40AQI
47AQI
49AQI
35AQI
44AQI
27AQI
53AQI
49AQI
48AQI
64AQI
82AQI
103AQI
101AQI
54AQI
62AQI
92AQI
101AQI
110AQI
112AQI
96AQI
73AQI
100AQI
64AQI
84AQI
72AQI
82AQI
101AQI
97AQI
107AQI
99AQI
147AQI
121AQI
116AQI
64AQI
40AQI
34AQI
49AQI
50AQI
62AQI
77AQI
80AQI
96AQI
124AQI
128AQI
120AQI
113AQI
63AQI
65AQI
55AQI
66AQI
55AQI
53AQI
45AQI
46AQI
60AQI
65AQI
74AQI
64AQI
63AQI
73AQI
78AQI
73AQI
45AQI
63AQI
81AQI
38AQI
27AQI
41AQI
46AQI
57AQI
54AQI
52AQI
28AQI
23AQI
34AQI
40AQI
39AQI
42AQI
46AQI
49AQI
57AQI
43AQI
52AQI
55AQI
35AQI
23AQI
40AQI
38AQI
27AQI
31AQI
27AQI
31AQI
36AQI
37AQI
44AQI
45AQI
50AQI
72AQI
50AQI
51AQI
30AQI
28AQI
30AQI
37AQI
30AQI
33AQI
32AQI
31AQI
38AQI
42AQI
42AQI
37AQI
22AQI
26AQI
18AQI
21AQI
37AQI
38AQI
34AQI
27AQI
28AQI
26AQI
27AQI
26AQI
20AQI
20AQI
18AQI
34AQI
31AQI
26AQI
36AQI
32AQI
27AQI
19AQI
17AQI
21AQI
23AQI
38AQI
41AQI
49AQI
50AQI
38AQI
43AQI
39AQI
36AQI
41AQI
50AQI
43AQI
40AQI
41AQI
42AQI
38AQI
34AQI
36AQI
34AQI
32AQI
31AQI
32AQI
32AQI
34AQI
35AQI
35AQI
34AQI
36AQI
32AQI
25AQI
27AQI
25AQI
23AQI
22AQI
24AQI
33AQI
32AQI
35AQI
29AQI
25AQI
28AQI
43AQI
48AQI
26AQI
18AQI
26AQI
33AQI
38AQI
34AQI
34AQI
30AQI
23AQI
22AQI
23AQI
24AQI
23AQI
22AQI
28AQI
23AQI
26AQI
40AQI
50AQI
60AQI
44AQI
36AQI
48AQI
59AQI
60AQI
61AQI
50AQI
29AQI
26AQI
33AQI
43AQI
33AQI
22AQI
17AQI
19AQI
27AQI
37AQI
48AQI
28AQI
23AQI
21AQI
22AQI
25AQI
22AQI
22AQI
21AQI
18AQI
21AQI
24AQI
30AQI
36AQI
26AQI
19AQI
18AQI
21AQI
17AQI
18AQI
18AQI
20AQI
25AQI
27AQI
41AQI
28AQI
19AQI
21AQI
26AQI
29AQI
32AQI
38AQI
42AQI
39AQI
52AQI
62AQI
60AQI
68AQI
45AQI
46AQI
48AQI
49AQI
87AQI
69AQI
41AQI
32AQI
35AQI
30AQI
35AQI
26AQI
54AQI
No. of days
202545AQI
Highest AQI recorded in
February87AQI
Lowest AQI recorded in
September26AQI
202447AQI
Highest AQI recorded in
January58AQI
Lowest AQI recorded in
February40AQI
202344AQI
Highest AQI recorded in
February52AQI
Lowest AQI recorded in
November33AQI
202248AQI
Highest AQI recorded in
March70AQI
Lowest AQI recorded in
September35AQI
202144AQI
Highest AQI recorded in
February52AQI
Lowest AQI recorded in
August32AQI
202043AQI
Highest AQI recorded in
December69AQI
Lowest AQI recorded in
October34AQI
Most & Least Polluted Years Over the Last 6 Years
Brevnov's annual 2025 AQI (45) shows an average percentage change of -0.5% (improved AQI) compared to previous years: 2020 (43), 2021 (44), 2022 (48), 2023 (44), 2024 (47).