San Lazzaro, Bologna, Emilia Romagna, Italy Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
November Air Quality Analysis
San Lazzaro, Bologna, Emilia Romagna, Italy
AQI Trends: Highest and Lowest
Same Day Analysis (1st November ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 1st highest AQI at 83 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 1st Nov - 2nd Nov 2025
San Lazzaro, Bologna, Emilia Romagna, Italy
7 AM1st Nov 2025
6 PM
6 AM2nd Nov 2025
82AQI
63AQI
115AQI
78AQI
In the last 24 hours,
San Lazzaro's AQI reached its highest point of 115 at 12 AM during the Night, while the lowest point, 63, was recorded at 6 AM during the Day between 1st Nov and 2nd Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
San Lazzaro, Bologna, Emilia Romagna, Italy
13°C9/18°C
15°C9/21°C
13°C9/14°C
13°C8/19°C
15°C10/20°C
16°C11/21°C
17°C12/22°C
17°C12/22°C
17°C13/23°C
17°C13/23°C
17°C13/21°C
17°C13/20°C
15°C12/20°C
14°C10/19°C
13°C9/19°C
13°C9/19°C
13°C9/18°C
14°C11/18°C
14°C12/15°C
13°C12/15°C
15°C13/20°C
14°C10/19°C
13°C11/15°C
13°C10/17°C
11°C8/15°C
12°C8/18°C
13°C10/19°C
12°C12/13°C
13°C12/15°C
14°C11/19°C
--°C/°C
79AQI
64AQI
82AQI
68AQI
2025 Days Vs Air Quality
San Lazzaro, Bologna, Emilia Romagna, Italy
59%
181
38%
116
2%
7
0.3%
1
Total number of days with different AQI categories in last 306 days in 2025 (59 days remaining)
Under WHO’s Safe Air Quality Limits: 59%
Health Risk Level:
Considerable
In 2025, 59% of 306 days were within WHO’s safe air quality limits, and 41% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
San Lazzaro, Bologna, Emilia Romagna, Italy
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
111AQI
115AQI
115AQI
106AQI
99AQI
97AQI
91AQI
95AQI
69AQI
45AQI
44AQI
46AQI
38AQI
40AQI
47AQI
39AQI
46AQI
72AQI
67AQI
56AQI
60AQI
64AQI
59AQI
58AQI
60AQI
55AQI
55AQI
47AQI
43AQI
46AQI
47AQI
38AQI
41AQI
50AQI
52AQI
51AQI
50AQI
56AQI
62AQI
65AQI
77AQI
77AQI
63AQI
58AQI
49AQI
47AQI
53AQI
55AQI
56AQI
57AQI
58AQI
71AQI
77AQI
96AQI
127AQI
146AQI
157AQI
142AQI
74AQI
40AQI
47AQI
54AQI
45AQI
50AQI
57AQI
63AQI
59AQI
57AQI
57AQI
56AQI
51AQI
40AQI
45AQI
52AQI
33AQI
33AQI
34AQI
36AQI
43AQI
48AQI
51AQI
43AQI
44AQI
42AQI
38AQI
41AQI
36AQI
42AQI
32AQI
28AQI
31AQI
34AQI
38AQI
41AQI
43AQI
36AQI
30AQI
36AQI
38AQI
43AQI
50AQI
47AQI
51AQI
47AQI
47AQI
43AQI
40AQI
32AQI
28AQI
31AQI
28AQI
33AQI
35AQI
32AQI
21AQI
18AQI
23AQI
30AQI
34AQI
34AQI
44AQI
51AQI
48AQI
41AQI
33AQI
23AQI
25AQI
27AQI
32AQI
35AQI
38AQI
34AQI
32AQI
33AQI
37AQI
26AQI
34AQI
32AQI
35AQI
40AQI
40AQI
30AQI
20AQI
25AQI
28AQI
36AQI
36AQI
36AQI
33AQI
32AQI
37AQI
36AQI
37AQI
36AQI
42AQI
48AQI
51AQI
51AQI
51AQI
61AQI
64AQI
71AQI
72AQI
71AQI
71AQI
66AQI
61AQI
48AQI
53AQI
55AQI
59AQI
68AQI
77AQI
52AQI
56AQI
59AQI
58AQI
53AQI
52AQI
50AQI
51AQI
55AQI
52AQI
48AQI
54AQI
53AQI
54AQI
38AQI
26AQI
31AQI
36AQI
36AQI
36AQI
35AQI
35AQI
35AQI
39AQI
40AQI
31AQI
35AQI
41AQI
37AQI
27AQI
24AQI
22AQI
23AQI
23AQI
22AQI
20AQI
20AQI
20AQI
25AQI
34AQI
34AQI
36AQI
34AQI
38AQI
37AQI
33AQI
43AQI
51AQI
59AQI
57AQI
57AQI
58AQI
57AQI
55AQI
52AQI
52AQI
51AQI
51AQI
48AQI
42AQI
37AQI
33AQI
29AQI
28AQI
29AQI
36AQI
39AQI
34AQI
32AQI
23AQI
22AQI
21AQI
22AQI
21AQI
27AQI
26AQI
25AQI
29AQI
35AQI
35AQI
27AQI
24AQI
23AQI
23AQI
24AQI
25AQI
22AQI
27AQI
31AQI
42AQI
38AQI
31AQI
28AQI
20AQI
17AQI
29AQI
28AQI
39AQI
62AQI
60AQI
52AQI
60AQI
60AQI
78AQI
81AQI
63AQI
72AQI
89AQI
84AQI
82AQI
99AQI
100AQI
80AQI
86AQI
72AQI
66AQI
74AQI
88AQI
90AQI
92AQI
80AQI
93AQI
76AQI
47AQI
59AQI
76AQI
50AQI
60AQI
79AQI
81AQI
72AQI
83AQI
66AQI
72AQI
45AQI
36AQI
34AQI
56AQI
35AQI
42AQI
29AQI
76AQI
83AQI
No. of days
202549AQI
Highest AQI recorded in
November83AQI
Lowest AQI recorded in
September29AQI
202443AQI
Highest AQI recorded in
April62AQI
Lowest AQI recorded in
May28AQI
202336AQI
Highest AQI recorded in
March36AQI
Lowest AQI recorded in
March36AQI
202259AQI
Highest AQI recorded in
January82AQI
Lowest AQI recorded in
April36AQI
202151AQI
Highest AQI recorded in
December79AQI
Lowest AQI recorded in
April33AQI
202041AQI
Highest AQI recorded in
November65AQI
Lowest AQI recorded in
April30AQI
Most & Least Polluted Years Over the Last 6 Years
San Lazzaro's annual 2025 AQI (49) shows an average percentage change of 9.8% (worsened AQI) compared to previous years: 2020 (41), 2021 (51), 2022 (59), 2023 (36), 2024 (43).