Risa, Roskilde, Sj Lland, Denmark 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
Risa, Roskilde, Sj Lland, Denmark
AQI Trends: Highest and Lowest
Same Day Analysis (1st October):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 53 of Moderate air quality on the same day.
Day & Night AQI Trend: 30th Sep - 1st Oct 2026
Risa, Roskilde, Sj Lland, Denmark
6 AM30th Sep 2026
7 PM
5 AM1st Oct 2026
90AQI
29AQI
66AQI
33AQI
In the last 24 hours,
Risa's AQI reached its highest point of 90 at 8 AM during the Day, while the lowest point, 29, was recorded at 4 PM during the Day between 30th Sep and 1st Oct 2026.
Day & Night AQI Trend : Sep - Oct 2026
Risa, Roskilde, Sj Lland, Denmark
16°C13/18°C
16°C14/20°C
15°C14/17°C
15°C14/18°C
16°C14/18°C
18°C14/21°C
17°C15/20°C
16°C13/19°C
14°C12/17°C
15°C11/19°C
16°C13/19°C
16°C14/19°C
14°C11/17°C
16°C13/20°C
16°C13/18°C
14°C12/17°C
15°C12/18°C
15°C14/17°C
15°C13/17°C
13°C12/15°C
14°C11/17°C
14°C12/16°C
14°C12/17°C
14°C12/17°C
14°C12/17°C
14°C12/16°C
16°C14/18°C
16°C15/17°C
16°C15/16°C
16°C14/17°C
35AQI
30AQI
35AQI
31AQI
2026 Days Vs Air Quality
Risa, Roskilde, Sj Lland, Denmark
90%
244
9%
24
1%
3
Total number of days with different AQI categories in last 274 days in 2026 (91 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2026, 90% of 274 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Risa, Roskilde, Sj Lland, Denmark
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
23AQI (US)
11AQI (US)
12AQI (US)
15AQI (US)
29AQI (US)
69AQI (US)
50AQI (US)
51AQI (US)
23AQI (US)
10AQI (US)
22AQI (US)
40AQI (US)
41AQI (US)
27AQI (US)
28AQI (US)
52AQI (US)
59AQI (US)
64AQI (US)
78AQI (US)
72AQI (US)
65AQI (US)
63AQI (US)
32AQI (US)
24AQI (US)
64AQI (US)
16AQI (US)
25AQI (US)
19AQI (US)
28AQI (US)
44AQI (US)
41AQI (US)
39AQI (US)
26AQI (US)
39AQI (US)
36AQI (US)
49AQI (US)
45AQI (US)
27AQI (US)
32AQI (US)
50AQI (US)
74AQI (US)
62AQI (US)
22AQI (US)
15AQI (US)
21AQI (US)
13AQI (US)
25AQI (US)
43AQI (US)
28AQI (US)
25AQI (US)
32AQI (US)
24AQI (US)
20AQI (US)
21AQI (US)
32AQI (US)
33AQI (US)
34AQI (US)
47AQI (US)
43AQI (US)
17AQI (US)
25AQI (US)
13AQI (US)
18AQI (US)
32AQI (US)
28AQI (US)
80AQI (US)
112AQI (US)
101AQI (US)
109AQI (US)
65AQI (US)
22AQI (US)
17AQI (US)
15AQI (US)
27AQI (US)
16AQI (US)
25AQI (US)
14AQI (US)
52AQI (US)
33AQI (US)
27AQI (US)
38AQI (US)
57AQI (US)
81AQI (US)
36AQI (US)
14AQI (US)
20AQI (US)
31AQI (US)
22AQI (US)
21AQI (US)
18AQI (US)
12AQI (US)
27AQI (US)
15AQI (US)
22AQI (US)
41AQI (US)
13AQI (US)
19AQI (US)
20AQI (US)
19AQI (US)
25AQI (US)
35AQI (US)
51AQI (US)
41AQI (US)
16AQI (US)
46AQI (US)
32AQI (US)
35AQI (US)
46AQI (US)
20AQI (US)
23AQI (US)
17AQI (US)
14AQI (US)
12AQI (US)
18AQI (US)
25AQI (US)
35AQI (US)
48AQI (US)
55AQI (US)
29AQI (US)
21AQI (US)
55AQI (US)
30AQI (US)
14AQI (US)
13AQI (US)
14AQI (US)
14AQI (US)
20AQI (US)
22AQI (US)
21AQI (US)
23AQI (US)
12AQI (US)
23AQI (US)
36AQI (US)
40AQI (US)
34AQI (US)
34AQI (US)
33AQI (US)
35AQI (US)
33AQI (US)
38AQI (US)
51AQI (US)
43AQI (US)
34AQI (US)
20AQI (US)
19AQI (US)
21AQI (US)
18AQI (US)
15AQI (US)
25AQI (US)
28AQI (US)
20AQI (US)
18AQI (US)
14AQI (US)
18AQI (US)
12AQI (US)
18AQI (US)
14AQI (US)
19AQI (US)
18AQI (US)
17AQI (US)
16AQI (US)
20AQI (US)
10AQI (US)
18AQI (US)
22AQI (US)
21AQI (US)
22AQI (US)
29AQI (US)
16AQI (US)
20AQI (US)
18AQI (US)
36AQI (US)
20AQI (US)
18AQI (US)
26AQI (US)
30AQI (US)
13AQI (US)
20AQI (US)
17AQI (US)
15AQI (US)
19AQI (US)
14AQI (US)
11AQI (US)
14AQI (US)
11AQI (US)
17AQI (US)
14AQI (US)
12AQI (US)
14AQI (US)
14AQI (US)
17AQI (US)
21AQI (US)
18AQI (US)
16AQI (US)
28AQI (US)
47AQI (US)
32AQI (US)
18AQI (US)
22AQI (US)
25AQI (US)
24AQI (US)
25AQI (US)
27AQI (US)
33AQI (US)
27AQI (US)
29AQI (US)
24AQI (US)
40AQI (US)
37AQI (US)
25AQI (US)
27AQI (US)
33AQI (US)
31AQI (US)
34AQI (US)
29AQI (US)
26AQI (US)
26AQI (US)
26AQI (US)
29AQI (US)
28AQI (US)
28AQI (US)
33AQI (US)
31AQI (US)
29AQI (US)
31AQI (US)
19AQI (US)
20AQI (US)
24AQI (US)
20AQI (US)
23AQI (US)
21AQI (US)
19AQI (US)
22AQI (US)
21AQI (US)
28AQI (US)
29AQI (US)
45AQI (US)
38AQI (US)
24AQI (US)
25AQI (US)
26AQI (US)
24AQI (US)
19AQI (US)
25AQI (US)
25AQI (US)
26AQI (US)
26AQI (US)
33AQI (US)
25AQI (US)
25AQI (US)
30AQI (US)
24AQI (US)
26AQI (US)
34AQI (US)
30AQI (US)
31AQI (US)
23AQI (US)
30AQI (US)
41AQI (US)
38AQI (US)
36AQI (US)
40AQI (US)
30AQI (US)
27AQI (US)
27AQI (US)
33AQI (US)
31AQI (US)
40AQI (US)
62AQI (US)
52AQI (US)
53AQI (US)
39AQI (US)
34AQI (US)
38AQI (US)
28AQI (US)
27AQI (US)
20AQI (US)
22AQI (US)
27AQI (US)
31AQI (US)
53AQI (US)
No. of days
202630AQI (US)
Highest AQI (US) recorded in
October53AQI (US)
Lowest AQI (US) recorded in
June20AQI (US)
202533AQI (US)
Highest AQI (US) recorded in
March52AQI (US)
Lowest AQI (US) recorded in
May20AQI (US)
202427AQI (US)
Highest AQI (US) recorded in
May32AQI (US)
Lowest AQI (US) recorded in
February23AQI (US)
202326AQI (US)
Highest AQI (US) recorded in
May33AQI (US)
Lowest AQI (US) recorded in
November19AQI (US)
202225AQI (US)
Highest AQI (US) recorded in
April30AQI (US)
Lowest AQI (US) recorded in
December18AQI (US)
202125AQI (US)
Highest AQI (US) recorded in
April32AQI (US)
Lowest AQI (US) recorded in
January18AQI (US)
202025AQI (US)
Highest AQI (US) recorded in
March31AQI (US)
Lowest AQI (US) recorded in
December17AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Risa's annual 2026 AQI (US) (30) shows an average percentage change of 12.9% (worsened AQI (US)) compared to previous years: 2020 (25), 2021 (25), 2022 (25), 2023 (26), 2024 (27), 2025 (33).