Reggio Emilia, Emilia Romagna, Italy Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Reggio Emilia, Emilia Romagna, Italy
AQI Trends: Highest and Lowest
Same Day Analysis (28th September ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 36 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 28th Sep - 29th Sep 2025
Reggio Emilia, Emilia Romagna, Italy
6 AM28th Sep 2025
7 PM
5 AM29th Sep 2025
67AQI
10AQI
68AQI
43AQI
In the last 24 hours,
Reggio Emilia's AQI reached its highest point of 68 at 6 AM during the Night, while the lowest point, 10, was recorded at 4 PM during the Day between 28th Sep and 29th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Reggio Emilia, Emilia Romagna, Italy
19°C17/22°C
21°C16/27°C
22°C17/29°C
21°C17/26°C
21°C16/27°C
22°C17/28°C
22°C17/28°C
21°C15/28°C
22°C16/28°C
21°C17/25°C
22°C18/27°C
20°C18/23°C
21°C16/27°C
21°C16/27°C
20°C17/26°C
21°C16/26°C
22°C17/28°C
22°C18/28°C
20°C18/25°C
22°C17/28°C
23°C17/29°C
24°C18/30°C
23°C19/30°C
20°C18/25°C
19°C17/24°C
19°C13/24°C
15°C12/20°C
15°C12/20°C
15°C12/20°C
15°C11/21°C
--°C/°C
33AQI
25AQI
31AQI
27AQI
2025 Days Vs Air Quality
Reggio Emilia, Emilia Romagna, Italy
76%
205
22%
60
2%
6
Total number of days with different AQI categories in last 272 days in 2025 (93 days remaining)
Under WHO’s Safe Air Quality Limits: 76%
Health Risk Level:
Low
In 2025, 76% of 272 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
Reggio Emilia, Emilia Romagna, Italy
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
83AQI
80AQI
98AQI
122AQI
116AQI
94AQI
79AQI
67AQI
55AQI
45AQI
43AQI
41AQI
41AQI
43AQI
46AQI
47AQI
50AQI
77AQI
66AQI
60AQI
61AQI
62AQI
54AQI
56AQI
60AQI
49AQI
52AQI
47AQI
44AQI
49AQI
47AQI
39AQI
41AQI
47AQI
49AQI
50AQI
51AQI
54AQI
60AQI
57AQI
72AQI
70AQI
59AQI
53AQI
44AQI
44AQI
48AQI
48AQI
50AQI
51AQI
51AQI
58AQI
62AQI
85AQI
115AQI
135AQI
139AQI
126AQI
66AQI
37AQI
44AQI
45AQI
41AQI
44AQI
45AQI
50AQI
48AQI
47AQI
46AQI
46AQI
41AQI
34AQI
41AQI
46AQI
34AQI
35AQI
37AQI
40AQI
43AQI
48AQI
48AQI
44AQI
46AQI
43AQI
40AQI
42AQI
37AQI
39AQI
32AQI
29AQI
33AQI
36AQI
36AQI
41AQI
40AQI
34AQI
29AQI
37AQI
37AQI
43AQI
46AQI
43AQI
46AQI
42AQI
41AQI
36AQI
30AQI
25AQI
24AQI
26AQI
24AQI
28AQI
28AQI
28AQI
21AQI
22AQI
23AQI
28AQI
29AQI
30AQI
42AQI
50AQI
45AQI
37AQI
31AQI
24AQI
26AQI
32AQI
32AQI
35AQI
40AQI
34AQI
37AQI
35AQI
36AQI
26AQI
29AQI
28AQI
33AQI
42AQI
43AQI
28AQI
22AQI
26AQI
33AQI
37AQI
37AQI
40AQI
33AQI
34AQI
39AQI
39AQI
34AQI
33AQI
40AQI
42AQI
46AQI
47AQI
52AQI
60AQI
62AQI
68AQI
68AQI
69AQI
68AQI
61AQI
55AQI
46AQI
52AQI
55AQI
60AQI
59AQI
57AQI
52AQI
52AQI
56AQI
56AQI
47AQI
46AQI
47AQI
48AQI
48AQI
44AQI
44AQI
50AQI
48AQI
52AQI
36AQI
27AQI
25AQI
31AQI
35AQI
30AQI
37AQI
37AQI
42AQI
47AQI
39AQI
30AQI
35AQI
44AQI
37AQI
27AQI
31AQI
24AQI
24AQI
28AQI
25AQI
21AQI
23AQI
22AQI
25AQI
34AQI
34AQI
34AQI
34AQI
35AQI
36AQI
30AQI
42AQI
54AQI
62AQI
56AQI
57AQI
57AQI
57AQI
55AQI
52AQI
53AQI
51AQI
51AQI
47AQI
42AQI
35AQI
31AQI
29AQI
28AQI
30AQI
35AQI
35AQI
29AQI
27AQI
21AQI
21AQI
21AQI
21AQI
24AQI
27AQI
26AQI
24AQI
29AQI
32AQI
32AQI
25AQI
23AQI
23AQI
22AQI
23AQI
23AQI
22AQI
28AQI
36AQI
45AQI
43AQI
40AQI
35AQI
21AQI
23AQI
38AQI
36AQI
36AQI
62AQI
65AQI
42AQI
33AQI
34AQI
53AQI
34AQI
41AQI
29AQI
No. of days
202544AQI
Highest AQI recorded in
February65AQI
Lowest AQI recorded in
September29AQI
202439AQI
Highest AQI recorded in
February90AQI
Lowest AQI recorded in
May26AQI
202365AQI
Highest AQI recorded in
December77AQI
Lowest AQI recorded in
March40AQI
202263AQI
Highest AQI recorded in
January86AQI
Lowest AQI recorded in
April43AQI
202159AQI
Highest AQI recorded in
December88AQI
Lowest AQI recorded in
May38AQI
202056AQI
Highest AQI recorded in
November85AQI
Lowest AQI recorded in
June42AQI
Most & Least Polluted Years Over the Last 6 Years
Reggio Emilia's annual 2025 AQI (44) shows an average percentage change of -19.7% (improved AQI) compared to previous years: 2020 (56), 2021 (59), 2022 (63), 2023 (65), 2024 (39).