Niederzier, Elsdorf, North Rhine Westphalia, Germany 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
Niederzier, Elsdorf, North Rhine Westphalia, Germany
AQI Trends: Highest and Lowest
Same Day Analysis (18th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 64 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 18th Oct - 19th Oct 2025
Niederzier, Elsdorf, North Rhine Westphalia, Germany
7 AM18th Oct 2025
7 PM
6 AM19th Oct 2025
AQI
AQI
61AQI
37AQI
In the last 24 hours,
Niederzier's AQI reached its highest point of 61 at 7 AM during the Night, while the lowest point, undefined, was recorded at 6 AM during the Night between 18th Oct and 19th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Niederzier, Elsdorf, North Rhine Westphalia, Germany
19°C13/28°C
21°C16/28°C
15°C10/16°C
11°C8/15°C
12°C7/16°C
12°C8/16°C
8°C7/9°C
12°C8/16°C
13°C9/18°C
14°C8/19°C
14°C12/18°C
12°C9/17°C
10°C6/16°C
10°C5/16°C
12°C6/16°C
13°C10/17°C
11°C9/13°C
11°C9/14°C
15°C12/19°C
14°C11/15°C
13°C9/16°C
13°C9/18°C
13°C9/15°C
13°C8/16°C
14°C12/16°C
11°C7/14°C
12°C11/13°C
11°C10/14°C
10°C8/13°C
--°C/°C
--°C/°C
43AQI
43AQI
46AQI
42AQI
2025 Days Vs Air Quality
Niederzier, Elsdorf, North Rhine Westphalia, Germany
73%
211
26%
77
1%
3
Total number of days with different AQI categories in last 291 days in 2025 (74 days remaining)
Under WHO’s Safe Air Quality Limits: 73%
Health Risk Level:
Low
In 2025, 73% of 291 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
Niederzier, Elsdorf, North Rhine Westphalia, Germany
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
27AQI
25AQI
29AQI
40AQI
40AQI
27AQI
26AQI
23AQI
22AQI
36AQI
61AQI
74AQI
67AQI
63AQI
68AQI
48AQI
52AQI
57AQI
67AQI
81AQI
74AQI
67AQI
55AQI
29AQI
24AQI
28AQI
28AQI
28AQI
24AQI
24AQI
37AQI
50AQI
56AQI
67AQI
79AQI
69AQI
66AQI
56AQI
69AQI
85AQI
116AQI
94AQI
53AQI
86AQI
130AQI
118AQI
56AQI
57AQI
65AQI
67AQI
74AQI
59AQI
52AQI
32AQI
25AQI
26AQI
33AQI
26AQI
30AQI
49AQI
68AQI
63AQI
65AQI
70AQI
69AQI
57AQI
62AQI
77AQI
84AQI
99AQI
68AQI
51AQI
48AQI
47AQI
60AQI
47AQI
30AQI
41AQI
56AQI
59AQI
40AQI
27AQI
35AQI
92AQI
85AQI
56AQI
71AQI
60AQI
36AQI
30AQI
32AQI
34AQI
48AQI
53AQI
56AQI
32AQI
21AQI
30AQI
51AQI
48AQI
55AQI
61AQI
40AQI
50AQI
42AQI
28AQI
27AQI
22AQI
37AQI
52AQI
29AQI
24AQI
28AQI
33AQI
59AQI
62AQI
36AQI
32AQI
47AQI
50AQI
50AQI
45AQI
63AQI
46AQI
21AQI
23AQI
31AQI
33AQI
23AQI
24AQI
26AQI
20AQI
27AQI
40AQI
40AQI
30AQI
37AQI
39AQI
42AQI
33AQI
35AQI
35AQI
24AQI
21AQI
19AQI
20AQI
23AQI
14AQI
20AQI
21AQI
31AQI
31AQI
33AQI
30AQI
40AQI
19AQI
17AQI
15AQI
17AQI
22AQI
47AQI
46AQI
42AQI
49AQI
56AQI
48AQI
32AQI
31AQI
36AQI
41AQI
35AQI
33AQI
32AQI
35AQI
27AQI
24AQI
24AQI
22AQI
20AQI
19AQI
22AQI
28AQI
39AQI
41AQI
29AQI
23AQI
20AQI
18AQI
19AQI
20AQI
23AQI
23AQI
22AQI
25AQI
32AQI
32AQI
26AQI
23AQI
25AQI
31AQI
33AQI
20AQI
16AQI
16AQI
21AQI
34AQI
31AQI
38AQI
27AQI
27AQI
27AQI
25AQI
23AQI
21AQI
20AQI
22AQI
22AQI
24AQI
26AQI
26AQI
31AQI
33AQI
41AQI
44AQI
54AQI
58AQI
58AQI
54AQI
40AQI
25AQI
27AQI
33AQI
34AQI
23AQI
22AQI
21AQI
22AQI
28AQI
33AQI
35AQI
23AQI
18AQI
17AQI
16AQI
17AQI
17AQI
17AQI
18AQI
19AQI
20AQI
24AQI
25AQI
24AQI
20AQI
17AQI
17AQI
16AQI
15AQI
19AQI
19AQI
18AQI
22AQI
28AQI
29AQI
18AQI
19AQI
17AQI
17AQI
19AQI
28AQI
27AQI
51AQI
62AQI
74AQI
50AQI
41AQI
36AQI
39AQI
47AQI
49AQI
55AQI
57AQI
58AQI
76AQI
73AQI
49AQI
55AQI
55AQI
54AQI
57AQI
64AQI
44AQI
64AQI
58AQI
41AQI
31AQI
32AQI
26AQI
31AQI
23AQI
55AQI
No. of days
202540AQI
Highest AQI recorded in
February64AQI
Lowest AQI recorded in
September23AQI
202435AQI
Highest AQI recorded in
January45AQI
Lowest AQI recorded in
February26AQI
202338AQI
Highest AQI recorded in
February56AQI
Lowest AQI recorded in
November29AQI
202243AQI
Highest AQI recorded in
March67AQI
Lowest AQI recorded in
February33AQI
202139AQI
Highest AQI recorded in
June67AQI
Lowest AQI recorded in
January25AQI
202040AQI
Highest AQI recorded in
August52AQI
Lowest AQI recorded in
December21AQI
Most & Least Polluted Years Over the Last 6 Years
Niederzier's annual 2025 AQI (40) shows an average percentage change of 1.5% (worsened AQI) compared to previous years: 2020 (40), 2021 (39), 2022 (43), 2023 (38), 2024 (35).