La Union, Los Rios, Chile Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
March Air Quality Analysis
La Union, Los Rios, Chile
AQI Trends: Highest and Lowest
Same Day Analysis (4th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 41 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Mar - 4th Mar 2026
La Union, Los Rios, Chile
7 AM3rd Mar 2026
8 PM
6 AM4th Mar 2026
50AQI
39AQI
56AQI
34AQI
In the last 24 hours,
La Union's AQI reached its highest point of 56 at 10 PM during the Night, while the lowest point, 34, was recorded at 5 AM during the Night between 3rd Mar and 4th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
La Union, Los Rios, Chile
17°C11/23°C
14°C9/20°C
13°C5/22°C
13°C4/21°C
16°C7/28°C
17°C9/27°C
17°C9/26°C
11°C7/15°C
10°C5/15°C
13°C4/22°C
17°C7/27°C
16°C10/23°C
14°C5/25°C
14°C5/23°C
16°C9/21°C
13°C5/22°C
14°C5/24°C
19°C12/30°C
18°C9/30°C
17°C8/27°C
17°C11/25°C
14°C5/24°C
14°C3/28°C
14°C5/26°C
15°C9/20°C
16°C14/17°C
16°C10/20°C
12°C8/20°C
12°C7/17°C
11°C4/19°C
67AQI
37AQI
59AQI
37AQI
2026 Days Vs Air Quality
La Union, Los Rios, Chile
89%
56
11%
7
Total number of days with different AQI categories in last 64 days in 2026 (301 days remaining)
Under WHO’s Safe Air Quality Limits: 89%
Health Risk Level:
Low
In 2026, 89% of 64 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
La Union, Los Rios, Chile
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
24AQI (US)
27AQI (US)
22AQI (US)
25AQI (US)
26AQI (US)
21AQI (US)
29AQI (US)
33AQI (US)
27AQI (US)
17AQI (US)
17AQI (US)
18AQI (US)
32AQI (US)
16AQI (US)
20AQI (US)
27AQI (US)
28AQI (US)
27AQI (US)
26AQI (US)
21AQI (US)
22AQI (US)
52AQI (US)
53AQI (US)
46AQI (US)
49AQI (US)
46AQI (US)
41AQI (US)
45AQI (US)
47AQI (US)
50AQI (US)
44AQI (US)
46AQI (US)
54AQI (US)
51AQI (US)
52AQI (US)
50AQI (US)
43AQI (US)
41AQI (US)
47AQI (US)
48AQI (US)
43AQI (US)
46AQI (US)
46AQI (US)
54AQI (US)
54AQI (US)
44AQI (US)
44AQI (US)
46AQI (US)
47AQI (US)
49AQI (US)
44AQI (US)
40AQI (US)
34AQI (US)
39AQI (US)
43AQI (US)
43AQI (US)
34AQI (US)
33AQI (US)
33AQI (US)
40AQI (US)
49AQI (US)
43AQI (US)
41AQI (US)
32AQI (US)
45AQI (US)
43AQI (US)
No. of days
202638AQI (US)
Highest AQI (US) recorded in
February45AQI (US)
Lowest AQI (US) recorded in
January32AQI (US)
202559AQI (US)
Highest AQI (US) recorded in
June105AQI (US)
Lowest AQI (US) recorded in
December27AQI (US)
202453AQI (US)
Highest AQI (US) recorded in
May116AQI (US)
Lowest AQI (US) recorded in
January14AQI (US)
202355AQI (US)
Highest AQI (US) recorded in
August89AQI (US)
Lowest AQI (US) recorded in
January17AQI (US)
202264AQI (US)
Highest AQI (US) recorded in
August128AQI (US)
Lowest AQI (US) recorded in
December17AQI (US)
202171AQI (US)
Highest AQI (US) recorded in
July141AQI (US)
Lowest AQI (US) recorded in
January20AQI (US)
202081AQI (US)
Highest AQI (US) recorded in
August124AQI (US)
Lowest AQI (US) recorded in
December24AQI (US)
Most & Least Polluted Years Over the Last 7 Years
La Union's annual 2026 AQI (US) (38) shows an average percentage change of -39.09% (improved AQI (US)) compared to previous years: 2020 (81), 2021 (71), 2022 (64), 2023 (55), 2024 (53), 2025 (59).