Center Station, Calama, Antofagasta, Chile Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Center Station, Calama, Antofagasta, Chile
AQI Trends: Highest and Lowest
Same Day Analysis (15th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 61 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 15th Sep - 16th Sep 2025
Center Station, Calama, Antofagasta, Chile
6 AM15th Sep 2025
6 PM
5 AM16th Sep 2025
65AQI
54AQI
64AQI
48AQI
In the last 24 hours,
Center Station's AQI reached its highest point of 65 at 12 PM during the Day, while the lowest point, 48, was recorded at 6 AM during the Night between 15th Sep and 16th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Center Station, Calama, Antofagasta, Chile
12°C8/18°C
10°C4/16°C
9°C1/17°C
13°C6/21°C
12°C7/20°C
10°C5/17°C
10°C5/17°C
9°C3/16°C
12°C4/21°C
14°C7/22°C
14°C7/22°C
15°C8/24°C
13°C8/20°C
11°C5/18°C
11°C5/19°C
13°C7/22°C
14°C8/22°C
14°C8/20°C
14°C8/22°C
16°C10/23°C
16°C11/22°C
14°C9/19°C
13°C6/19°C
17°C10/28°C
17°C10/27°C
18°C11/27°C
17°C12/25°C
17°C10/25°C
18°C13/25°C
17°C10/26°C
--°C/°C
58AQI
55AQI
63AQI
57AQI
2025 Days Vs Air Quality
Center Station, Calama, Antofagasta, Chile
78%
200
22%
58
Total number of days with different AQI categories in last 259 days in 2025 (106 days remaining)
Under WHO’s Safe Air Quality Limits: 78%
Health Risk Level:
Low
In 2025, 78% of 259 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Center Station, Calama, Antofagasta, Chile
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
59AQI
38AQI
46AQI
67AQI
68AQI
37AQI
40AQI
53AQI
42AQI
43AQI
40AQI
37AQI
41AQI
44AQI
34AQI
47AQI
43AQI
44AQI
41AQI
39AQI
32AQI
40AQI
52AQI
43AQI
47AQI
44AQI
42AQI
62AQI
77AQI
40AQI
46AQI
50AQI
53AQI
56AQI
37AQI
34AQI
35AQI
38AQI
39AQI
42AQI
56AQI
58AQI
56AQI
36AQI
38AQI
50AQI
39AQI
38AQI
40AQI
31AQI
44AQI
35AQI
26AQI
19AQI
22AQI
33AQI
37AQI
48AQI
43AQI
42AQI
34AQI
22AQI
19AQI
24AQI
23AQI
20AQI
23AQI
26AQI
24AQI
25AQI
27AQI
38AQI
37AQI
32AQI
34AQI
40AQI
43AQI
47AQI
37AQI
37AQI
37AQI
36AQI
36AQI
34AQI
39AQI
35AQI
42AQI
39AQI
35AQI
37AQI
33AQI
39AQI
40AQI
38AQI
36AQI
32AQI
34AQI
33AQI
36AQI
29AQI
37AQI
33AQI
33AQI
33AQI
32AQI
36AQI
41AQI
31AQI
35AQI
35AQI
40AQI
38AQI
34AQI
29AQI
33AQI
36AQI
39AQI
35AQI
36AQI
35AQI
36AQI
38AQI
44AQI
44AQI
37AQI
39AQI
41AQI
39AQI
37AQI
34AQI
35AQI
40AQI
38AQI
38AQI
37AQI
41AQI
41AQI
33AQI
37AQI
40AQI
42AQI
43AQI
45AQI
39AQI
33AQI
41AQI
39AQI
49AQI
46AQI
52AQI
43AQI
41AQI
44AQI
43AQI
42AQI
35AQI
47AQI
33AQI
42AQI
41AQI
48AQI
41AQI
40AQI
44AQI
37AQI
38AQI
43AQI
45AQI
48AQI
46AQI
57AQI
36AQI
35AQI
48AQI
38AQI
45AQI
31AQI
38AQI
40AQI
43AQI
40AQI
49AQI
45AQI
55AQI
44AQI
46AQI
50AQI
48AQI
44AQI
46AQI
44AQI
48AQI
56AQI
50AQI
52AQI
57AQI
61AQI
67AQI
72AQI
64AQI
52AQI
62AQI
63AQI
70AQI
64AQI
47AQI
48AQI
49AQI
47AQI
35AQI
49AQI
41AQI
46AQI
65AQI
53AQI
55AQI
62AQI
46AQI
50AQI
47AQI
40AQI
48AQI
49AQI
51AQI
58AQI
69AQI
56AQI
49AQI
58AQI
56AQI
55AQI
63AQI
62AQI
59AQI
62AQI
66AQI
60AQI
57AQI
48AQI
40AQI
50AQI
53AQI
52AQI
50AQI
54AQI
48AQI
37AQI
76AQI
64AQI
61AQI
50AQI
61AQI
62AQI
76AQI
83AQI
67AQI
63AQI
61AQI
46AQI
40AQI
33AQI
35AQI
40AQI
42AQI
52AQI
54AQI
61AQI
No. of days
202544AQI
Highest AQI recorded in
September61AQI
Lowest AQI recorded in
March33AQI
202434AQI
Highest AQI recorded in
February42AQI
Lowest AQI recorded in
April30AQI
202333AQI
Highest AQI recorded in
August38AQI
Lowest AQI recorded in
March28AQI
202228AQI
Highest AQI recorded in
February38AQI
Lowest AQI recorded in
April24AQI
202123AQI
Highest AQI recorded in
July27AQI
Lowest AQI recorded in
March19AQI
202030AQI
Highest AQI recorded in
August39AQI
Lowest AQI recorded in
April24AQI
Most & Least Polluted Years Over the Last 6 Years
Center Station's annual 2025 AQI (44) shows an average percentage change of 51.8% (worsened AQI) compared to previous years: 2020 (30), 2021 (23), 2022 (28), 2023 (33), 2024 (34).