Maardu, Harjumaa, Estonia Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Maardu, Harjumaa, Estonia
AQI Trends: Highest and Lowest
Same Day Analysis (2nd July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks the most lowest AQI at 16 of Good air quality, showing improvement over 2024, 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Maardu, Harjumaa, Estonia
4 AM2nd Jul 2025
10 PM
3 AM3rd Jul 2025
17AQI
15AQI
17AQI
16AQI
In the last 24 hours,
Maardu's AQI reached its highest point of 17 at 6 AM during the Day, while the lowest point, 15, was recorded at 8 AM during the Day between 2nd Jul and 3rd Jul 2025.
Day & Night AQI Trend : Jun - Jul 2025
Maardu, Harjumaa, Estonia
12°C10/14°C
12°C9/15°C
12°C11/14°C
12°C9/15°C
13°C11/14°C
13°C10/14°C
11°C10/13°C
12°C10/14°C
11°C10/14°C
12°C11/13°C
14°C12/16°C
13°C11/16°C
14°C11/17°C
15°C11/19°C
14°C13/15°C
14°C12/16°C
13°C12/14°C
14°C11/16°C
13°C11/17°C
12°C11/14°C
13°C9/18°C
13°C11/14°C
13°C12/15°C
13°C11/16°C
14°C10/18°C
14°C12/15°C
14°C12/15°C
15°C12/17°C
15°C13/17°C
16°C13/19°C
0°C0/0°C
20AQI
19AQI
20AQI
20AQI
2025 Days Vs Air Quality
Maardu, Harjumaa, Estonia
95%
174
5%
9
Total number of days with different AQI categories in last 184 days in 2025 (181 days remaining)
Under WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2025, 95% of 184 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
Maardu, Harjumaa, Estonia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI
26AQI
24AQI
24AQI
23AQI
23AQI
25AQI
29AQI
25AQI
26AQI
21AQI
23AQI
24AQI
23AQI
22AQI
22AQI
21AQI
26AQI
23AQI
23AQI
24AQI
26AQI
26AQI
27AQI
27AQI
27AQI
25AQI
31AQI
44AQI
28AQI
24AQI
23AQI
21AQI
20AQI
28AQI
27AQI
33AQI
30AQI
32AQI
42AQI
47AQI
37AQI
33AQI
30AQI
26AQI
64AQI
70AQI
68AQI
36AQI
32AQI
34AQI
30AQI
43AQI
54AQI
64AQI
75AQI
75AQI
54AQI
54AQI
38AQI
31AQI
27AQI
27AQI
27AQI
25AQI
29AQI
45AQI
33AQI
34AQI
33AQI
31AQI
29AQI
25AQI
21AQI
19AQI
20AQI
17AQI
19AQI
20AQI
25AQI
26AQI
26AQI
31AQI
50AQI
41AQI
35AQI
31AQI
45AQI
44AQI
47AQI
48AQI
36AQI
32AQI
28AQI
24AQI
19AQI
21AQI
19AQI
21AQI
19AQI
18AQI
17AQI
20AQI
25AQI
31AQI
26AQI
25AQI
29AQI
43AQI
26AQI
22AQI
19AQI
20AQI
18AQI
18AQI
16AQI
15AQI
19AQI
17AQI
17AQI
17AQI
15AQI
14AQI
14AQI
14AQI
14AQI
15AQI
14AQI
16AQI
18AQI
17AQI
18AQI
18AQI
17AQI
16AQI
18AQI
17AQI
16AQI
19AQI
17AQI
14AQI
18AQI
18AQI
18AQI
17AQI
19AQI
19AQI
19AQI
21AQI
23AQI
19AQI
17AQI
18AQI
19AQI
20AQI
22AQI
20AQI
18AQI
18AQI
20AQI
21AQI
28AQI
30AQI
26AQI
22AQI
21AQI
21AQI
27AQI
25AQI
21AQI
18AQI
17AQI
15AQI
17AQI
20AQI
18AQI
16AQI
17AQI
18AQI
18AQI
16AQI
15AQI
16AQI
25AQI
42AQI
31AQI
24AQI
17AQI
20AQI
16AQI
No. of days
202526AQI
Highest AQI recorded in
February42AQI
Lowest AQI recorded in
July16AQI
202427AQI
Highest AQI recorded in
September33AQI
Lowest AQI recorded in
April19AQI
202325AQI
Highest AQI recorded in
June31AQI
Lowest AQI recorded in
October16AQI
202227AQI
Highest AQI recorded in
March37AQI
Lowest AQI recorded in
August17AQI
202129AQI
Highest AQI recorded in
February34AQI
Lowest AQI recorded in
September22AQI
202019AQI
Highest AQI recorded in
April28AQI
Lowest AQI recorded in
February0AQI
Most & Least Polluted Years Over the Last 6 Years
Maardu's annual 2025 AQI (26) shows an average percentage change of 5.3% (worsened AQI) compared to previous years: 2020 (19), 2021 (29), 2022 (27), 2023 (25), 2024 (27).