Adalgisa Nery, 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
Adalgisa Nery, Iguacu, Rio de Janeiro, Brazil
AQI Trends: Highest and Lowest
Same Day Analysis (31st October ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 28 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 1st Oct - 2nd Oct 2025
Adalgisa Nery, Iguacu, Rio de Janeiro, Brazil
5 AM1st Oct 2025
5 PM
4 AM2nd Oct 2025
156AQI
73AQI
87AQI
66AQI
In the last 24 hours,
Adalgisa Nery's AQI reached its highest point of 156 at 5 AM during the Day, while the lowest point, 66, was recorded at 10 PM during the Night between 1st Oct and 2nd Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Adalgisa Nery, Iguacu, Rio de Janeiro, Brazil
21°C18/26°C
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
--°C/°C
52AQI
47AQI
54AQI
51AQI
2025 Days Vs Air Quality
Adalgisa Nery, Iguacu, Rio de Janeiro, Brazil
50%
136
47%
128
3%
9
Total number of days with different AQI categories in last 275 days in 2025 (90 days remaining)
Under WHO’s Safe Air Quality Limits: 50%
Health Risk Level:
Considerable
In 2025, 50% of 275 days were within WHO’s safe air quality limits, and 50% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Adalgisa Nery, Iguacu, Rio de Janeiro, Brazil
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
76AQI
65AQI
70AQI
70AQI
69AQI
72AQI
75AQI
78AQI
85AQI
88AQI
94AQI
103AQI
100AQI
102AQI
98AQI
101AQI
99AQI
102AQI
99AQI
99AQI
95AQI
96AQI
90AQI
89AQI
90AQI
91AQI
81AQI
77AQI
75AQI
75AQI
76AQI
77AQI
82AQI
82AQI
85AQI
86AQI
91AQI
95AQI
97AQI
98AQI
108AQI
104AQI
100AQI
98AQI
95AQI
130AQI
108AQI
101AQI
100AQI
95AQI
90AQI
86AQI
82AQI
79AQI
73AQI
73AQI
71AQI
69AQI
66AQI
66AQI
65AQI
63AQI
62AQI
63AQI
62AQI
60AQI
60AQI
60AQI
58AQI
59AQI
57AQI
55AQI
55AQI
55AQI
54AQI
52AQI
53AQI
55AQI
56AQI
57AQI
59AQI
62AQI
63AQI
61AQI
60AQI
58AQI
56AQI
56AQI
55AQI
54AQI
52AQI
51AQI
49AQI
47AQI
45AQI
44AQI
41AQI
38AQI
35AQI
34AQI
32AQI
33AQI
31AQI
30AQI
26AQI
26AQI
27AQI
26AQI
30AQI
29AQI
29AQI
29AQI
29AQI
29AQI
28AQI
28AQI
28AQI
29AQI
29AQI
28AQI
29AQI
28AQI
29AQI
28AQI
30AQI
31AQI
31AQI
30AQI
32AQI
30AQI
31AQI
28AQI
29AQI
28AQI
28AQI
28AQI
30AQI
27AQI
30AQI
27AQI
31AQI
32AQI
30AQI
30AQI
30AQI
30AQI
31AQI
32AQI
31AQI
34AQI
35AQI
38AQI
37AQI
39AQI
35AQI
37AQI
33AQI
34AQI
32AQI
32AQI
27AQI
25AQI
27AQI
25AQI
27AQI
29AQI
29AQI
35AQI
35AQI
37AQI
35AQI
34AQI
34AQI
35AQI
33AQI
33AQI
30AQI
31AQI
33AQI
35AQI
34AQI
33AQI
29AQI
28AQI
30AQI
28AQI
26AQI
23AQI
24AQI
27AQI
32AQI
34AQI
35AQI
36AQI
43AQI
60AQI
62AQI
66AQI
65AQI
64AQI
59AQI
57AQI
61AQI
60AQI
65AQI
60AQI
58AQI
59AQI
56AQI
52AQI
49AQI
49AQI
52AQI
64AQI
71AQI
66AQI
68AQI
58AQI
54AQI
57AQI
46AQI
41AQI
44AQI
46AQI
54AQI
61AQI
58AQI
54AQI
55AQI
60AQI
58AQI
60AQI
71AQI
77AQI
73AQI
66AQI
54AQI
45AQI
42AQI
50AQI
45AQI
40AQI
45AQI
44AQI
45AQI
46AQI
43AQI
57AQI
46AQI
47AQI
40AQI
54AQI
61AQI
61AQI
62AQI
53AQI
50AQI
49AQI
49AQI
48AQI
41AQI
41AQI
47AQI
48AQI
51AQI
47AQI
34AQI
23AQI
24AQI
22AQI
46AQI
73AQI
70AQI
86AQI
90AQI
58AQI
34AQI
30AQI
33AQI
46AQI
56AQI
47AQI
No. of days
202553AQI
Highest AQI recorded in
February90AQI
Lowest AQI recorded in
May30AQI
202450AQI
Highest AQI recorded in
September91AQI
Lowest AQI recorded in
March25AQI
202327AQI
Highest AQI recorded in
January28AQI
Lowest AQI recorded in
December27AQI
202225AQI
Highest AQI recorded in
December30AQI
Lowest AQI recorded in
November22AQI
Most & Least Polluted Years Over the Last 4 Years
Adalgisa Nery's annual 2025 AQI (53) shows an average percentage change of 71.08% (worsened AQI) compared to previous years: 2022 (25), 2023 (27), 2024 (50).