Engenheiro Pedreira, Iguacu, Rio de Janeiro, Brazil 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
Engenheiro Pedreira, Iguacu, Rio de Janeiro, Brazil
AQI Trends: Highest and Lowest
Same Day Analysis (2nd October ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 74 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Oct - 3rd Oct 2025
Engenheiro Pedreira, Iguacu, Rio de Janeiro, Brazil
5 AM2nd Oct 2025
5 PM
4 AM3rd Oct 2025
79AQI
71AQI
74AQI
50AQI
In the last 24 hours,
Engenheiro Pedreira's AQI reached its highest point of 79 at 9 AM during the Day, while the lowest point, 50, was recorded at 12 AM during the Night between 2nd Oct and 3rd Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Engenheiro Pedreira, Iguacu, Rio de Janeiro, Brazil
21°C14/29°C
22°C14/31°C
22°C15/34°C
20°C18/25°C
20°C17/23°C
22°C17/28°C
25°C19/39°C
20°C16/27°C
21°C15/31°C
19°C15/26°C
18°C16/21°C
20°C15/28°C
21°C14/31°C
22°C15/34°C
21°C17/27°C
22°C17/31°C
24°C16/33°C
25°C19/37°C
29°C20/40°C
29°C20/41°C
20°C18/22°C
19°C17/22°C
17°C16/18°C
17°C13/23°C
18°C12/25°C
20°C11/30°C
22°C15/33°C
24°C16/34°C
23°C17/33°C
23°C17/32°C
--°C/°C
51AQI
48AQI
51AQI
51AQI
2025 Days Vs Air Quality
Engenheiro Pedreira, Iguacu, Rio de Janeiro, Brazil
59%
161
41%
114
Total number of days with different AQI categories in last 276 days in 2025 (89 days remaining)
Under WHO’s Safe Air Quality Limits: 59%
Health Risk Level:
Considerable
In 2025, 59% of 276 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
Engenheiro Pedreira, Iguacu, Rio de Janeiro, Brazil
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
50AQI
52AQI
51AQI
52AQI
52AQI
53AQI
54AQI
55AQI
56AQI
55AQI
55AQI
55AQI
55AQI
57AQI
58AQI
58AQI
57AQI
57AQI
57AQI
56AQI
56AQI
56AQI
55AQI
55AQI
55AQI
55AQI
55AQI
54AQI
55AQI
54AQI
53AQI
53AQI
53AQI
53AQI
53AQI
53AQI
53AQI
52AQI
52AQI
54AQI
54AQI
54AQI
55AQI
56AQI
56AQI
57AQI
60AQI
62AQI
63AQI
65AQI
64AQI
64AQI
64AQI
65AQI
63AQI
62AQI
60AQI
60AQI
58AQI
58AQI
57AQI
57AQI
55AQI
55AQI
55AQI
54AQI
53AQI
53AQI
51AQI
49AQI
49AQI
49AQI
48AQI
46AQI
44AQI
42AQI
41AQI
40AQI
39AQI
38AQI
40AQI
41AQI
40AQI
40AQI
40AQI
41AQI
42AQI
42AQI
44AQI
44AQI
43AQI
43AQI
44AQI
42AQI
41AQI
40AQI
39AQI
37AQI
35AQI
32AQI
31AQI
31AQI
30AQI
30AQI
28AQI
28AQI
27AQI
23AQI
25AQI
22AQI
21AQI
21AQI
23AQI
25AQI
26AQI
27AQI
28AQI
29AQI
30AQI
29AQI
30AQI
31AQI
32AQI
32AQI
33AQI
33AQI
33AQI
33AQI
33AQI
32AQI
32AQI
30AQI
30AQI
29AQI
30AQI
29AQI
32AQI
29AQI
31AQI
30AQI
32AQI
33AQI
32AQI
30AQI
32AQI
31AQI
34AQI
33AQI
32AQI
36AQI
36AQI
39AQI
39AQI
40AQI
36AQI
38AQI
33AQI
34AQI
33AQI
33AQI
28AQI
27AQI
28AQI
27AQI
28AQI
29AQI
30AQI
36AQI
38AQI
40AQI
41AQI
41AQI
40AQI
39AQI
35AQI
33AQI
32AQI
34AQI
35AQI
37AQI
38AQI
35AQI
31AQI
29AQI
32AQI
30AQI
30AQI
30AQI
30AQI
32AQI
34AQI
35AQI
37AQI
38AQI
43AQI
58AQI
60AQI
63AQI
66AQI
65AQI
62AQI
59AQI
61AQI
64AQI
65AQI
60AQI
55AQI
57AQI
54AQI
46AQI
47AQI
49AQI
50AQI
64AQI
68AQI
64AQI
67AQI
57AQI
54AQI
59AQI
46AQI
43AQI
43AQI
43AQI
51AQI
60AQI
55AQI
52AQI
55AQI
59AQI
57AQI
57AQI
69AQI
78AQI
74AQI
65AQI
54AQI
44AQI
43AQI
52AQI
45AQI
44AQI
47AQI
45AQI
44AQI
44AQI
40AQI
55AQI
46AQI
44AQI
42AQI
51AQI
62AQI
69AQI
66AQI
59AQI
53AQI
49AQI
50AQI
45AQI
40AQI
40AQI
43AQI
47AQI
50AQI
43AQI
33AQI
22AQI
24AQI
22AQI
41AQI
75AQI
93AQI
82AQI
74AQI
55AQI
58AQI
47AQI
31AQI
32AQI
35AQI
47AQI
55AQI
48AQI
78AQI
No. of days
202545AQI
Highest AQI recorded in
October78AQI
Lowest AQI recorded in
April31AQI
202449AQI
Highest AQI recorded in
September88AQI
Lowest AQI recorded in
March25AQI
202327AQI
Highest AQI recorded in
November30AQI
Lowest AQI recorded in
December26AQI
202221AQI
Highest AQI recorded in
September24AQI
Lowest AQI recorded in
November18AQI
Most & Least Polluted Years Over the Last 4 Years
Engenheiro Pedreira's annual 2025 AQI (45) shows an average percentage change of 60.1% (worsened AQI) compared to previous years: 2022 (21), 2023 (27), 2024 (49).