Chalco, Mexico, Mexico Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Chalco, Mexico, Mexico
AQI Trends: Highest and Lowest
Same Day Analysis (25th August ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 2nd highest AQI at 39 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 25th Aug - 26th Aug 2025
Chalco, Mexico, Mexico
7 AM25th Aug 2025
8 PM
6 AM26th Aug 2025
53AQI
35AQI
59AQI
36AQI
In the last 24 hours,
Chalco's AQI reached its highest point of 59 at 3 AM during the Night, while the lowest point, 35, was recorded at 7 PM during the Day between 25th Aug and 26th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Chalco, Mexico, Mexico
15°C13/19°C
16°C12/21°C
15°C10/22°C
15°C11/22°C
16°C13/21°C
16°C12/21°C
15°C11/23°C
17°C13/23°C
17°C12/23°C
16°C12/23°C
15°C12/19°C
16°C13/22°C
17°C11/23°C
17°C13/23°C
17°C13/23°C
17°C11/24°C
18°C13/24°C
18°C14/23°C
16°C13/23°C
16°C12/22°C
17°C13/22°C
16°C12/21°C
16°C13/22°C
16°C12/22°C
16°C13/21°C
16°C13/21°C
16°C13/22°C
17°C12/22°C
16°C13/23°C
16°C14/23°C
--°C/°C
42AQI
40AQI
42AQI
39AQI
2025 Days Vs Air Quality
Chalco, Mexico, Mexico
26%
61
74%
175
0.4%
1
Total number of days with different AQI categories in last 238 days in 2025 (127 days remaining)
Under WHO’s Safe Air Quality Limits: 26%
Health Risk Level:
Very high
In 2025, 26% of 238 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
Annual Air Quality Insights
Chalco, Mexico, Mexico
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
130AQI
98AQI
96AQI
79AQI
76AQI
78AQI
77AQI
75AQI
69AQI
62AQI
56AQI
52AQI
60AQI
63AQI
67AQI
68AQI
74AQI
75AQI
74AQI
64AQI
64AQI
68AQI
72AQI
77AQI
74AQI
75AQI
74AQI
77AQI
72AQI
71AQI
71AQI
70AQI
73AQI
69AQI
72AQI
74AQI
75AQI
70AQI
73AQI
73AQI
73AQI
78AQI
72AQI
63AQI
66AQI
62AQI
59AQI
51AQI
55AQI
46AQI
55AQI
51AQI
49AQI
48AQI
45AQI
48AQI
56AQI
64AQI
58AQI
62AQI
57AQI
59AQI
58AQI
59AQI
59AQI
54AQI
53AQI
53AQI
54AQI
52AQI
56AQI
64AQI
70AQI
67AQI
71AQI
78AQI
78AQI
84AQI
98AQI
84AQI
84AQI
80AQI
80AQI
84AQI
78AQI
79AQI
70AQI
71AQI
72AQI
76AQI
78AQI
80AQI
78AQI
71AQI
71AQI
70AQI
67AQI
69AQI
69AQI
65AQI
66AQI
63AQI
64AQI
66AQI
67AQI
72AQI
74AQI
80AQI
82AQI
83AQI
84AQI
84AQI
84AQI
82AQI
84AQI
82AQI
74AQI
73AQI
77AQI
80AQI
73AQI
76AQI
78AQI
78AQI
74AQI
74AQI
78AQI
76AQI
79AQI
72AQI
72AQI
70AQI
67AQI
74AQI
67AQI
69AQI
71AQI
68AQI
70AQI
70AQI
70AQI
71AQI
71AQI
69AQI
63AQI
61AQI
61AQI
53AQI
51AQI
53AQI
54AQI
57AQI
54AQI
55AQI
55AQI
55AQI
56AQI
53AQI
54AQI
52AQI
55AQI
55AQI
54AQI
46AQI
36AQI
29AQI
34AQI
33AQI
36AQI
30AQI
26AQI
22AQI
22AQI
24AQI
22AQI
31AQI
39AQI
40AQI
39AQI
35AQI
29AQI
26AQI
29AQI
30AQI
41AQI
54AQI
56AQI
49AQI
51AQI
43AQI
52AQI
52AQI
54AQI
48AQI
48AQI
49AQI
52AQI
53AQI
57AQI
56AQI
54AQI
55AQI
55AQI
54AQI
49AQI
44AQI
49AQI
42AQI
37AQI
36AQI
32AQI
35AQI
33AQI
38AQI
31AQI
42AQI
45AQI
40AQI
35AQI
42AQI
51AQI
54AQI
46AQI
39AQI
46AQI
56AQI
37AQI
45AQI
51AQI
29AQI
31AQI
35AQI
40AQI
46AQI
44AQI
38AQI
39AQI
74AQI
62AQI
69AQI
75AQI
69AQI
41AQI
47AQI
41AQI
No. of days
202560AQI
Highest AQI recorded in
April75AQI
Lowest AQI recorded in
June41AQI
202449AQI
Highest AQI recorded in
December76AQI
Lowest AQI recorded in
January4AQI
202341AQI
Highest AQI recorded in
January55AQI
Lowest AQI recorded in
December4AQI
202243AQI
Highest AQI recorded in
May58AQI
Lowest AQI recorded in
September28AQI
202142AQI
Highest AQI recorded in
December57AQI
Lowest AQI recorded in
June22AQI
202035AQI
Highest AQI recorded in
November48AQI
Lowest AQI recorded in
September22AQI
Most & Least Polluted Years Over the Last 6 Years
Chalco's annual 2025 AQI (60) shows an average percentage change of 44.3% (worsened AQI) compared to previous years: 2020 (35), 2021 (42), 2022 (43), 2023 (41), 2024 (49).