Most, Ustecky 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
Most, Ustecky Kraj, Czechia
AQI Trends: Highest and Lowest
Same Day Analysis (17th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 46 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: 17th Aug - 18th Aug 2025
Most, Ustecky Kraj, Czechia
5 AM17th Aug 2025
8 PM
4 AM18th Aug 2025
50AQI
32AQI
51AQI
24AQI
In the last 24 hours,
Most's AQI reached its highest point of 51 at 1 AM during the Night, while the lowest point, 24, was recorded at 4 AM during the Night between 17th Aug and 18th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Most, Ustecky Kraj, Czechia
20°C12/27°C
22°C14/30°C
18°C14/24°C
17°C11/23°C
18°C12/25°C
17°C12/23°C
19°C13/25°C
18°C13/23°C
19°C13/24°C
15°C13/17°C
16°C11/21°C
14°C9/20°C
15°C10/20°C
16°C11/23°C
16°C10/22°C
15°C11/20°C
15°C11/22°C
17°C13/25°C
15°C8/22°C
17°C9/26°C
21°C13/29°C
23°C15/32°C
20°C16/25°C
19°C11/27°C
20°C12/29°C
23°C13/33°C
26°C18/35°C
26°C19/35°C
21°C16/27°C
16°C11/22°C
--°C/°C
45AQI
34AQI
37AQI
36AQI
2025 Days Vs Air Quality
Most, Ustecky Kraj, Czechia
68%
155
25%
58
6%
13
1%
3
Total number of days with different AQI categories in last 230 days in 2025 (135 days remaining)
Under WHO’s Safe Air Quality Limits: 68%
Health Risk Level:
Moderate
In 2025, 68% of 230 days were within WHO’s safe air quality limits, and 32% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Most, Ustecky Kraj, Czechia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
73AQI
34AQI
27AQI
32AQI
61AQI
77AQI
46AQI
29AQI
41AQI
28AQI
27AQI
30AQI
39AQI
70AQI
47AQI
43AQI
60AQI
78AQI
80AQI
76AQI
78AQI
75AQI
63AQI
68AQI
82AQI
65AQI
60AQI
49AQI
28AQI
62AQI
51AQI
54AQI
55AQI
82AQI
108AQI
102AQI
47AQI
57AQI
92AQI
102AQI
118AQI
108AQI
91AQI
76AQI
95AQI
43AQI
72AQI
76AQI
86AQI
92AQI
110AQI
127AQI
106AQI
155AQI
157AQI
161AQI
94AQI
37AQI
41AQI
41AQI
46AQI
59AQI
72AQI
95AQI
111AQI
116AQI
109AQI
110AQI
116AQI
89AQI
76AQI
41AQI
70AQI
62AQI
54AQI
37AQI
46AQI
65AQI
78AQI
83AQI
66AQI
63AQI
86AQI
93AQI
72AQI
40AQI
66AQI
85AQI
30AQI
26AQI
29AQI
40AQI
52AQI
48AQI
48AQI
20AQI
20AQI
31AQI
40AQI
38AQI
40AQI
45AQI
49AQI
53AQI
40AQI
56AQI
51AQI
34AQI
19AQI
40AQI
29AQI
27AQI
26AQI
37AQI
32AQI
32AQI
33AQI
41AQI
48AQI
47AQI
59AQI
47AQI
53AQI
25AQI
26AQI
28AQI
30AQI
27AQI
33AQI
30AQI
30AQI
30AQI
40AQI
39AQI
33AQI
22AQI
21AQI
17AQI
19AQI
31AQI
34AQI
33AQI
23AQI
22AQI
29AQI
25AQI
26AQI
19AQI
17AQI
19AQI
33AQI
35AQI
27AQI
46AQI
32AQI
23AQI
18AQI
16AQI
21AQI
21AQI
46AQI
38AQI
50AQI
50AQI
37AQI
49AQI
33AQI
35AQI
45AQI
48AQI
37AQI
41AQI
37AQI
47AQI
35AQI
29AQI
36AQI
28AQI
29AQI
31AQI
26AQI
36AQI
45AQI
47AQI
39AQI
40AQI
39AQI
26AQI
22AQI
22AQI
22AQI
24AQI
23AQI
28AQI
41AQI
39AQI
35AQI
25AQI
21AQI
37AQI
45AQI
47AQI
27AQI
22AQI
29AQI
36AQI
37AQI
32AQI
28AQI
29AQI
24AQI
22AQI
24AQI
25AQI
22AQI
23AQI
27AQI
24AQI
31AQI
38AQI
48AQI
59AQI
40AQI
39AQI
49AQI
60AQI
63AQI
61AQI
46AQI
54AQI
91AQI
71AQI
38AQI
30AQI
35AQI
32AQI
40AQI
No. of days
202549AQI
Highest AQI recorded in
February91AQI
Lowest AQI recorded in
May30AQI
202449AQI
Highest AQI recorded in
March63AQI
Lowest AQI recorded in
May39AQI
202347AQI
Highest AQI recorded in
February56AQI
Lowest AQI recorded in
November31AQI
202253AQI
Highest AQI recorded in
March75AQI
Lowest AQI recorded in
August25AQI
202150AQI
Highest AQI recorded in
June61AQI
Lowest AQI recorded in
May36AQI
202049AQI
Highest AQI recorded in
December68AQI
Lowest AQI recorded in
October42AQI
Most & Least Polluted Years Over the Last 6 Years
Most's annual 2025 AQI (49) shows an average percentage change of -1.05% (improved AQI) compared to previous years: 2020 (49), 2021 (50), 2022 (53), 2023 (47), 2024 (49).