Alta, Linz, Oberosterreich, Austria 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
Alta, Linz, Oberosterreich, Austria
AQI Trends: Highest and Lowest
Same Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 23 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Alta, Linz, Oberosterreich, Austria
5 AM2nd Aug 2025
8 PM
4 AM3rd Aug 2025
48AQI
20AQI
25AQI
20AQI
In the last 24 hours,
Alta's AQI reached its highest point of 48 at 11 AM during the Day, while the lowest point, 20, was recorded at 4 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Alta, Linz, Oberosterreich, Austria
19°C14/23°C
20°C12/28°C
20°C14/29°C
17°C15/23°C
13°C11/15°C
14°C10/20°C
14°C9/18°C
15°C9/20°C
17°C11/24°C
19°C11/27°C
18°C13/25°C
19°C14/26°C
16°C13/21°C
15°C12/21°C
17°C13/24°C
20°C12/27°C
22°C14/30°C
17°C11/20°C
18°C11/25°C
19°C12/25°C
18°C14/22°C
18°C13/24°C
18°C16/20°C
16°C13/20°C
16°C12/19°C
15°C10/18°C
15°C9/22°C
16°C10/21°C
16°C11/23°C
14°C10/21°C
--°C/°C
33AQI
27AQI
30AQI
27AQI
2025 Days Vs Air Quality
Alta, Linz, Oberosterreich, Austria
70%
151
28%
60
2%
4
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Under WHO’s Safe Air Quality Limits: 70%
Health Risk Level:
Low
In 2025, 70% of 215 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
Alta, Linz, Oberosterreich, Austria
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
104AQI
105AQI
36AQI
42AQI
58AQI
72AQI
60AQI
52AQI
52AQI
26AQI
44AQI
45AQI
41AQI
48AQI
71AQI
58AQI
48AQI
58AQI
58AQI
60AQI
66AQI
68AQI
59AQI
67AQI
58AQI
64AQI
58AQI
38AQI
40AQI
46AQI
53AQI
29AQI
53AQI
71AQI
88AQI
82AQI
65AQI
59AQI
80AQI
85AQI
76AQI
65AQI
77AQI
76AQI
64AQI
59AQI
43AQI
64AQI
71AQI
64AQI
72AQI
80AQI
84AQI
118AQI
102AQI
70AQI
49AQI
42AQI
41AQI
54AQI
53AQI
51AQI
53AQI
63AQI
76AQI
71AQI
69AQI
70AQI
58AQI
63AQI
51AQI
43AQI
47AQI
34AQI
52AQI
39AQI
25AQI
41AQI
54AQI
54AQI
60AQI
50AQI
48AQI
50AQI
58AQI
39AQI
57AQI
66AQI
50AQI
26AQI
36AQI
57AQI
50AQI
36AQI
39AQI
16AQI
20AQI
26AQI
37AQI
49AQI
46AQI
30AQI
47AQI
47AQI
20AQI
26AQI
40AQI
40AQI
32AQI
25AQI
25AQI
22AQI
26AQI
25AQI
26AQI
26AQI
25AQI
31AQI
32AQI
34AQI
34AQI
35AQI
45AQI
27AQI
21AQI
25AQI
36AQI
36AQI
32AQI
25AQI
25AQI
24AQI
31AQI
33AQI
36AQI
21AQI
31AQI
26AQI
26AQI
24AQI
34AQI
34AQI
28AQI
27AQI
25AQI
29AQI
28AQI
24AQI
17AQI
24AQI
27AQI
30AQI
29AQI
31AQI
30AQI
20AQI
21AQI
18AQI
26AQI
29AQI
47AQI
56AQI
40AQI
41AQI
28AQI
38AQI
35AQI
37AQI
37AQI
50AQI
29AQI
26AQI
23AQI
39AQI
32AQI
31AQI
35AQI
33AQI
26AQI
27AQI
31AQI
25AQI
29AQI
34AQI
43AQI
40AQI
38AQI
30AQI
22AQI
25AQI
27AQI
26AQI
23AQI
27AQI
29AQI
26AQI
39AQI
25AQI
30AQI
27AQI
33AQI
36AQI
24AQI
20AQI
25AQI
36AQI
43AQI
37AQI
25AQI
28AQI
28AQI
26AQI
24AQI
25AQI
23AQI
57AQI
69AQI
52AQI
33AQI
29AQI
33AQI
30AQI
24AQI
No. of days
202543AQI
Highest AQI recorded in
February69AQI
Lowest AQI recorded in
August24AQI
202438AQI
Highest AQI recorded in
January60AQI
Lowest AQI recorded in
May25AQI
202339AQI
Highest AQI recorded in
December53AQI
Lowest AQI recorded in
November29AQI
202244AQI
Highest AQI recorded in
December62AQI
Lowest AQI recorded in
August27AQI
202143AQI
Highest AQI recorded in
February58AQI
Lowest AQI recorded in
May23AQI
202040AQI
Highest AQI recorded in
November57AQI
Lowest AQI recorded in
June29AQI
Most & Least Polluted Years Over the Last 6 Years
Alta's annual 2025 AQI (43) shows an average percentage change of 4.8% (worsened AQI) compared to previous years: 2020 (40), 2021 (43), 2022 (44), 2023 (39), 2024 (38).