Coroa Grande, 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
Coroa Grande, 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 73 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
Coroa Grande, Iguacu, Rio de Janeiro, Brazil
5 AM2nd Oct 2025
5 PM
4 AM3rd Oct 2025
77AQI
71AQI
76AQI
49AQI
In the last 24 hours,
Coroa Grande's AQI reached its highest point of 77 at 7 AM during the Day, while the lowest point, 49, was recorded at 11 PM during the Night between 2nd Oct and 3rd Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Coroa Grande, Iguacu, Rio de Janeiro, Brazil
21°C16/27°C
22°C16/30°C
21°C16/29°C
20°C18/23°C
19°C18/23°C
21°C18/26°C
25°C19/36°C
20°C16/24°C
20°C16/27°C
19°C16/24°C
19°C17/21°C
19°C16/25°C
20°C16/27°C
21°C16/29°C
20°C17/25°C
21°C17/27°C
23°C17/30°C
24°C20/31°C
27°C21/36°C
27°C20/37°C
20°C19/22°C
19°C16/21°C
17°C16/18°C
17°C15/21°C
18°C13/23°C
20°C12/28°C
21°C16/29°C
22°C16/29°C
21°C18/28°C
21°C17/28°C
--°C/°C
50AQI
47AQI
52AQI
50AQI
2025 Days Vs Air Quality
Coroa Grande, Iguacu, Rio de Janeiro, Brazil
49%
135
46%
126
5%
14
Total number of days with different AQI categories in last 276 days in 2025 (89 days remaining)
Under WHO’s Safe Air Quality Limits: 49%
Health Risk Level:
Significant
In 2025, 49% of 276 days were within WHO’s safe air quality limits, and 51% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Coroa Grande, Iguacu, Rio de Janeiro, Brazil
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
97AQI
69AQI
73AQI
76AQI
75AQI
87AQI
88AQI
89AQI
93AQI
92AQI
97AQI
105AQI
103AQI
103AQI
100AQI
102AQI
101AQI
101AQI
98AQI
100AQI
95AQI
96AQI
90AQI
88AQI
88AQI
89AQI
80AQI
76AQI
73AQI
74AQI
76AQI
77AQI
82AQI
81AQI
84AQI
86AQI
93AQI
95AQI
98AQI
97AQI
108AQI
106AQI
102AQI
98AQI
95AQI
131AQI
108AQI
103AQI
101AQI
94AQI
90AQI
86AQI
82AQI
78AQI
75AQI
72AQI
70AQI
69AQI
66AQI
67AQI
65AQI
66AQI
65AQI
68AQI
70AQI
62AQI
66AQI
63AQI
64AQI
66AQI
73AQI
98AQI
67AQI
86AQI
70AQI
74AQI
71AQI
78AQI
89AQI
95AQI
101AQI
90AQI
83AQI
77AQI
70AQI
65AQI
62AQI
59AQI
57AQI
55AQI
54AQI
54AQI
52AQI
48AQI
46AQI
44AQI
41AQI
33AQI
32AQI
32AQI
31AQI
32AQI
31AQI
30AQI
26AQI
26AQI
24AQI
25AQI
29AQI
28AQI
29AQI
29AQI
30AQI
29AQI
29AQI
29AQI
29AQI
30AQI
30AQI
30AQI
29AQI
29AQI
29AQI
29AQI
31AQI
31AQI
32AQI
31AQI
32AQI
30AQI
30AQI
28AQI
28AQI
27AQI
27AQI
28AQI
29AQI
27AQI
30AQI
28AQI
31AQI
32AQI
30AQI
28AQI
28AQI
30AQI
31AQI
33AQI
31AQI
35AQI
35AQI
39AQI
38AQI
40AQI
36AQI
37AQI
33AQI
34AQI
33AQI
32AQI
29AQI
25AQI
27AQI
27AQI
28AQI
30AQI
29AQI
34AQI
35AQI
36AQI
35AQI
34AQI
33AQI
33AQI
32AQI
31AQI
28AQI
31AQI
35AQI
42AQI
39AQI
35AQI
29AQI
28AQI
31AQI
28AQI
26AQI
23AQI
24AQI
27AQI
32AQI
34AQI
35AQI
34AQI
42AQI
58AQI
61AQI
63AQI
63AQI
62AQI
57AQI
55AQI
58AQI
57AQI
60AQI
60AQI
56AQI
56AQI
55AQI
51AQI
48AQI
48AQI
51AQI
62AQI
69AQI
66AQI
67AQI
58AQI
54AQI
57AQI
45AQI
40AQI
42AQI
45AQI
54AQI
60AQI
57AQI
53AQI
56AQI
59AQI
58AQI
59AQI
70AQI
76AQI
73AQI
65AQI
55AQI
45AQI
42AQI
50AQI
44AQI
38AQI
44AQI
43AQI
44AQI
45AQI
43AQI
57AQI
44AQI
45AQI
40AQI
54AQI
59AQI
60AQI
61AQI
54AQI
50AQI
48AQI
49AQI
56AQI
40AQI
40AQI
47AQI
47AQI
49AQI
46AQI
32AQI
23AQI
25AQI
22AQI
44AQI
71AQI
71AQI
82AQI
73AQI
89AQI
90AQI
72AQI
34AQI
30AQI
33AQI
45AQI
55AQI
47AQI
78AQI
No. of days
202555AQI
Highest AQI recorded in
February90AQI
Lowest AQI recorded in
May30AQI
202450AQI
Highest AQI recorded in
September86AQI
Lowest AQI recorded in
March25AQI
202327AQI
Highest AQI recorded in
November30AQI
Lowest AQI recorded in
January26AQI
202224AQI
Highest AQI recorded in
September40AQI
Lowest AQI recorded in
November20AQI
Most & Least Polluted Years Over the Last 4 Years
Coroa Grande's annual 2025 AQI (55) shows an average percentage change of 82.8% (worsened AQI) compared to previous years: 2022 (24), 2023 (27), 2024 (50).