HC.Andersens Boulevard, Copenhagen, Hovedstaden, 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
HC.Andersens Boulevard, Copenhagen, Hovedstaden, Denmark
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 46 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 7th Oct - 8th Oct 2025
HC.Andersens Boulevard, Copenhagen, Hovedstaden, Denmark
6 AM7th Oct 2025
7 PM
5 AM8th Oct 2025
50AQI
38AQI
56AQI
43AQI
In the last 24 hours,
HC.Andersens Boulevard's AQI reached its highest point of 56 at 1 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
HC.Andersens Boulevard, Copenhagen, Hovedstaden, Denmark
18°C15/20°C
19°C17/21°C
19°C18/21°C
17°C15/20°C
16°C15/18°C
16°C15/18°C
16°C14/17°C
16°C14/19°C
16°C14/18°C
15°C14/18°C
17°C14/20°C
17°C15/20°C
19°C16/22°C
17°C13/20°C
13°C12/14°C
13°C11/15°C
12°C10/15°C
13°C10/16°C
14°C12/15°C
14°C13/16°C
14°C12/16°C
13°C12/15°C
12°C11/14°C
12°C10/14°C
12°C10/14°C
12°C11/13°C
11°C9/13°C
13°C11/15°C
13°C12/15°C
13°C12/14°C
--°C/°C
34AQI
28AQI
32AQI
30AQI
2025 Days Vs Air Quality
HC.Andersens Boulevard, Copenhagen, Hovedstaden, Denmark
84%
236
15%
42
0.7%
2
Total number of days with different AQI categories in last 281 days in 2025 (84 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2025, 84% 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
HC.Andersens Boulevard, Copenhagen, Hovedstaden, Denmark
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
43AQI
29AQI
29AQI
32AQI
32AQI
28AQI
32AQI
34AQI
42AQI
32AQI
25AQI
27AQI
28AQI
46AQI
45AQI
37AQI
53AQI
43AQI
35AQI
37AQI
70AQI
65AQI
56AQI
41AQI
38AQI
40AQI
28AQI
46AQI
50AQI
43AQI
43AQI
44AQI
52AQI
63AQI
92AQI
65AQI
41AQI
31AQI
59AQI
67AQI
58AQI
48AQI
58AQI
57AQI
35AQI
36AQI
27AQI
31AQI
42AQI
63AQI
56AQI
81AQI
83AQI
64AQI
50AQI
46AQI
62AQI
52AQI
44AQI
40AQI
41AQI
41AQI
37AQI
57AQI
83AQI
102AQI
107AQI
98AQI
83AQI
71AQI
50AQI
53AQI
41AQI
33AQI
26AQI
30AQI
33AQI
47AQI
68AQI
60AQI
52AQI
63AQI
72AQI
87AQI
34AQI
50AQI
67AQI
59AQI
37AQI
32AQI
32AQI
34AQI
36AQI
38AQI
22AQI
22AQI
28AQI
28AQI
41AQI
32AQI
38AQI
40AQI
51AQI
59AQI
56AQI
57AQI
56AQI
45AQI
29AQI
48AQI
39AQI
53AQI
38AQI
35AQI
30AQI
25AQI
26AQI
34AQI
33AQI
31AQI
43AQI
36AQI
22AQI
18AQI
20AQI
23AQI
25AQI
27AQI
30AQI
32AQI
22AQI
26AQI
31AQI
35AQI
24AQI
23AQI
22AQI
21AQI
23AQI
27AQI
42AQI
24AQI
18AQI
22AQI
29AQI
29AQI
27AQI
21AQI
24AQI
23AQI
20AQI
30AQI
31AQI
28AQI
36AQI
27AQI
21AQI
20AQI
21AQI
23AQI
49AQI
36AQI
31AQI
24AQI
25AQI
37AQI
29AQI
32AQI
36AQI
27AQI
28AQI
27AQI
27AQI
41AQI
30AQI
24AQI
28AQI
27AQI
31AQI
31AQI
31AQI
34AQI
43AQI
30AQI
23AQI
24AQI
25AQI
21AQI
20AQI
21AQI
23AQI
26AQI
25AQI
26AQI
32AQI
36AQI
24AQI
30AQI
35AQI
38AQI
44AQI
42AQI
47AQI
24AQI
28AQI
49AQI
35AQI
40AQI
28AQI
25AQI
26AQI
22AQI
22AQI
24AQI
23AQI
24AQI
30AQI
28AQI
28AQI
38AQI
29AQI
35AQI
30AQI
32AQI
34AQI
43AQI
52AQI
41AQI
27AQI
23AQI
25AQI
19AQI
18AQI
19AQI
16AQI
19AQI
21AQI
22AQI
26AQI
37AQI
45AQI
45AQI
42AQI
33AQI
34AQI
27AQI
25AQI
29AQI
23AQI
26AQI
24AQI
39AQI
55AQI
43AQI
29AQI
22AQI
21AQI
24AQI
25AQI
24AQI
21AQI
28AQI
38AQI
42AQI
26AQI
24AQI
21AQI
26AQI
24AQI
15AQI
10AQI
21AQI
29AQI
35AQI
45AQI
42AQI
41AQI
38AQI
35AQI
46AQI
40AQI
54AQI
57AQI
38AQI
26AQI
30AQI
31AQI
30AQI
28AQI
40AQI
No. of days
202537AQI
Highest AQI recorded in
March57AQI
Lowest AQI recorded in
May26AQI
202437AQI
Highest AQI recorded in
March52AQI
Lowest AQI recorded in
January22AQI
202335AQI
Highest AQI recorded in
May43AQI
Lowest AQI recorded in
December25AQI
202237AQI
Highest AQI recorded in
March50AQI
Lowest AQI recorded in
August29AQI
202137AQI
Highest AQI recorded in
February48AQI
Lowest AQI recorded in
January29AQI
202036AQI
Highest AQI recorded in
December43AQI
Lowest AQI recorded in
October30AQI
Most & Least Polluted Years Over the Last 6 Years
HC.Andersens Boulevard's annual 2025 AQI (37) shows an average percentage change of 1.2% (worsened AQI) compared to previous years: 2020 (36), 2021 (37), 2022 (37), 2023 (35), 2024 (37).