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San Fernando Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in Libertador General Bernardo O Higgins

Last Updated: 2025-07-01 06:09:15 AM (Local Time)

Live AQI

157

Air Quality is

Unhealthy

pm10 : 93 µg/m³

PM2.5 : 64 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

9 °C

Last Updated: 2025-07-01 06:09:15 AM (Local Time)

Map

San Fernando

Major Air Pollutants
San Fernando

Particulate Matter(PM2.5)

64µg/m³

Particulate Matter(PM10)

93µg/m³

Carbon Monoxide(CO)

1852ppb

Sulfur Dioxide(SO2)

3ppb

Nitrogen Dioxide(NO2)

20ppb

Ozone(O3)

7ppb

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AQI Graph

Historical Air Quality Data
San Fernando

24 Hours

AQI

San Fernando

AQI

30-06-2025Time01-07-2025

Time	San Fernando
06 AM	77
07 AM	83
08 AM	77
09 AM	68
10 AM	77
11 AM	85
12 PM	90
01 PM	88
02 PM	83
03 PM	75
04 PM	57
05 PM	57
06 PM	70
07 PM	88
08 PM	89
09 PM	90
10 PM	91
11 PM	93
12 AM	91
01 AM	97
02 AM	104
03 AM	99
04 AM	96
05 AM	93
06 AM	92

Min.at 4:09 PM on 30th Jun

104

Max.at 2:09 AM on 1st Jul

Want air quality data?

AQI Trends - Annual Air Quality Changes
San Fernando, Libertador General Bernardo O Higgins, Chile

AQI

Year

AQI

AQI	AQI
Mar 2020	49
Apr 2020	63
May 2020	107
Jun 2020	108
Jul 2020	101
Aug 2020	83
Sep 2020	63
Oct 2020	44
Nov 2020	42
Dec 2020	38
Jan 2021	46
Feb 2021	44
Mar 2021	42
Apr 2021	65
May 2021	105
Jun 2021	121
Jul 2021	131
Aug 2021	110
Sep 2021	56
Oct 2021	42
Nov 2021	37
Dec 2021	41
Jan 2022	33
Feb 2022	49
Mar 2022	50
Apr 2022	56
May 2022	101
Jun 2022	118
Jul 2022	98
Aug 2022	84
Sep 2022	74
Oct 2022	42
Nov 2022	39
Dec 2022	42
Jan 2023	38
Feb 2023	82
Mar 2023	48
Apr 2023	72
May 2023	106
Jun 2023	100
Jul 2023	105
Aug 2023	79
Sep 2023	69
Oct 2023	52
Nov 2023	74
Dec 2023	49
Jan 2024	51
Feb 2024	48
Mar 2024	41
Apr 2024	67
May 2024	96
Jun 2024	69
Jul 2024	67
Aug 2024	81
Sep 2024	58
Oct 2024	38
Nov 2024	34
Dec 2024	40
Jan 2025	41
Feb 2025	48
Mar 2025	48
Apr 2025	61
May 2025	87
Jun 2025	116
Jul 2025

Annual AQI Trends

2020

70AQI

2021

70AQI

No Change

2022

63AQI

-10%

Fall

2023

73AQI

16%

Rise

2024

58AQI

-21%

Fall

2025

67AQI

16%

Rise

Overall Annual Percentage (%) change of AQI in (2020 to 2025)

No Change

Most & Least Polluted Months

Most PollutedJuly, 2021131AQI

Least PollutedJanuary, 202233AQI

* This data analysis is from year 2020 - 2025

San Fernando's Locations
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

San Fernando

Unhealthy

157

Chile's Metro Cities
Air Quality Index

Iquique

La Serena

Santiago

145

temp.6°C

hum.81%

Air Quality Calendar 2025
San Fernando

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 39	2 Jan 38	3 Jan 46	4 Jan 43
5 Jan 45	6 Jan 38	7 Jan 35	8 Jan 32	9 Jan 36	10 Jan 43	11 Jan 43
12 Jan 42	13 Jan 33	14 Jan 37	15 Jan 33	16 Jan 27	17 Jan 35	18 Jan 33
19 Jan 38	20 Jan 47	21 Jan 46	22 Jan 42	23 Jan 37	24 Jan 52	25 Jan 46
26 Jan 61	27 Jan 41	28 Jan 43	29 Jan 55	30 Jan 51	31 Jan 47	1 Feb 46

February

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Jan 61	27 Jan 41	28 Jan 43	29 Jan 55	30 Jan 51	31 Jan 47	1 Feb 46
2 Feb 43	3 Feb 34	4 Feb 41	5 Feb 34	6 Feb 38	7 Feb 53	8 Feb 61
9 Feb 70	10 Feb 54	11 Feb 72	12 Feb 63	13 Feb 58	14 Feb 48	15 Feb 38
16 Feb 40	17 Feb 41	18 Feb 50	19 Feb 55	20 Feb 50	21 Feb 44	22 Feb 48
23 Feb 38	24 Feb 34	25 Feb 42	26 Feb 51	27 Feb 57	28 Feb 35	1 Mar 29

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 38	24 Feb 34	25 Feb 42	26 Feb 51	27 Feb 57	28 Feb 35	1 Mar 29
2 Mar 28	3 Mar 29	4 Mar 40	5 Mar 39	6 Mar 32	7 Mar 30	8 Mar 32
9 Mar 39	10 Mar 41	11 Mar 53	12 Mar 55	13 Mar 58	14 Mar 51	15 Mar 47
16 Mar 49	17 Mar 50	18 Mar 53	19 Mar 53	20 Mar 52	21 Mar 53	22 Mar 51
23 Mar 65	24 Mar 62	25 Mar 55	26 Mar 66	27 Mar 60	28 Mar 61	29 Mar 62
30 Mar 33	31 Mar 46	1 Apr 52	2 Apr 59	3 Apr 53	4 Apr 59	5 Apr 56

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 33	31 Mar 46	1 Apr 52	2 Apr 59	3 Apr 53	4 Apr 59	5 Apr 56
6 Apr 53	7 Apr 53	8 Apr 65	9 Apr 75	10 Apr 55	11 Apr 46	12 Apr 58
13 Apr 64	14 Apr 53	15 Apr 53	16 Apr 57	17 Apr 60	18 Apr 62	19 Apr 71
20 Apr 69	21 Apr 82	22 Apr 80	23 Apr 77	24 Apr 52	25 Apr 47	26 Apr 62
27 Apr 61	28 Apr 58	29 Apr 66	30 Apr 67	1 May 80	2 May 72	3 May 93

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 61	28 Apr 58	29 Apr 66	30 Apr 67	1 May 80	2 May 72	3 May 93
4 May 80	5 May 75	6 May 97	7 May 101	8 May 55	9 May 58	10 May 72
11 May 85	12 May 95	13 May 107	14 May 96	15 May 113	16 May 119	17 May 94
18 May 71	19 May 65	20 May 80	21 May 78	22 May 93	23 May 133	24 May 115
25 May 116	26 May 56	27 May 46	28 May 75	29 May 105	30 May 90	31 May 93

June

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
1 Jun 112	2 Jun 119	3 Jun 148	4 Jun 133	5 Jun 140	6 Jun 122	7 Jun 139
8 Jun 133	9 Jun 153	10 Jun 154	11 Jun 142	12 Jun 73	13 Jun 87	14 Jun 110
15 Jun 64	16 Jun 38	17 Jun 83	18 Jun 90	19 Jun 105	20 Jun 132	21 Jun 118
22 Jun 103	23 Jun 68	24 Jun 115	25 Jun 103	26 Jun 122	27 Jun 140	28 Jun 134
29 Jun 155	30 Jun 144	1 Jul -	2 Jul -	3 Jul -	4 Jul -	5 Jul -

July

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Jun 155	30 Jun 144	1 Jul -	2 Jul -	3 Jul -	4 Jul -	5 Jul -
6 Jul -	7 Jul -	8 Jul -	9 Jul -	10 Jul -	11 Jul -	12 Jul -
13 Jul -	14 Jul -	15 Jul -	16 Jul -	17 Jul -	18 Jul -	19 Jul -
20 Jul -	21 Jul -	22 Jul -	23 Jul -	24 Jul -	25 Jul -	26 Jul -
27 Jul -	28 Jul -	29 Jul -	30 Jul -	31 Jul -	1 Aug -	2 Aug -

Health Advice For People Living In
San Fernando

1.4Cigarettes per day

Weekly 9.8 Cigarettes

Monthly 42.0 Cigarettes

Breathing the air in this location is as harmful as smoking 1.4 cigarettes a day.

Source:

Berkeley Earth

Solutions for Current AQI

Air PurifierTurn On
Car FilterMust
N95 MaskMust
Stay IndoorMust

Must turn on the air purifier to enjoy fresh air.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

San Fernando

Asthma
Heart Issues
Allergies
Sinus
Cold/Flu
Chronic (COPD)

High Chances of Asthma

Asthma

Risk of Asthma symptoms is High when AQI is Unhealthy (150-301)

Severe symptoms including intense wheezing, severe shortness of breath, significant chest tightness, and persistent coughing that may disrupt daily activities.

Do's :

Avoid going outside and keep windows closed to reduce exposure to pollutants.
Take prescribed medications as directed by your healthcare provider.
Maintain clean indoor air with air purifiers, especially in bedrooms and living areas.

Don'ts :

Smoke or expose yourself to secondhand smoke.
Engage in physical exertion outdoors.

Most Polluted Cities 2025
Chile

Analyze the real-time most air polluted cities in the country.

Most Polluted Cities Live Ranking 2025

World's Most PollutedCity Rankings (2024)

World's Most PollutedCountry Rankings(2024)

RankCityAQIAQI Status

Standard Value

Valdivia, Chile

Osorno, Chile

Puerto Aysen, Chile

Rancagua, Chile

La Union, Chile

Coyhaique, Chile

Punta Arenas, Chile

Lo Miranda, Chile

San Fernando, Chile

10.

Puerto Montt, Chile

Unhealthy

10xabove Standard

Last Updated: 01 Jul 2025, 10:12 AM

AQI City Rankings

Air Quality Solutions For San Fernando
Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Monitor the air quality

Air Quality Sensors

Sensors to measure the air quality

Fresh Air Machine

Clean the air you breathe

Car Cabin Filter

Purify the air in your car

N95 Mask

Shield yourself from pollution

air quality solutions for offices for San Fernando

Air Quality Solution For Offices

A complete solution for air quality monitoring, data analysis, and fresh air solutions in workplaces prioritizing employee's health and productivity.

Air Quality Solutions For Smart City

Prana Air smart city project provides air quality monitors, drones, outdoor air purifiers, and data dashboards solution to improve air quality.

air quality solutions for institutes for San Fernando

Air Quality Solutions for Schools | Institutes

Prana Air provides the air quality solutions for schools by air monitoring & fresh air machine that help the students to breather clean air.

Air Quality Solutions For Hotels

Prana Air air quality solutions are suited for hotel businesses. The occupancy of hotels is the main reasons for bad air quality.

Air Quality Solutions for Restaurants

Prana Air has the air quality solutions for restaurant, cafes, and gives you the power to know what your customers and staff breathe.

Air Quality Solutions for RMC Plants

Prana Air provides air quality monitoring solutions for RMC plants. Improve compliance, protect workers and community, and reduce emissions.

Air Quality Solutions for Fitness Center

Prana Air provides the air quality solutions of pollution monitoring and fresh air for fitness center - gym.

Air Quality Solutions for Parking Lot

A complete solution for air monitoring, data analysis, and fresh air solutions for enclosed car parking areas and car lots.

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

air quality solutions for airport for San Fernando

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets

Prana Air provides the air quality solutions for airport. Gathering of many passengers is the main reasons of bad air quality in airport.

Air Quality Solutions For Construction Sites

Prana Air offers air quality monitoring solutions for construction sites with data cloud storage, web-dashboard, mobile apps, TV display.

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

air quality solutions for bathroom for San Fernando

Air Quality Solutions For Washroom | Bathroom

Improve washroom and bathroom air quality with Prana Air air quality monitoring devices and fresh air machine. Breathe easy and stay healthy.

Air Quality Solutions for Banks

Prana Air provides air quality solutions of pollution monitoring and fresh air for banks and financial institutions.

Air Quality Solutions for Cinema

Air quality solutions for cinema halls or theatres will help the customers to get the good experience, comfort and breathe clean air.

Air Quality Solutions For Real Estates

Prana Air provides the air quality solutions of pollution monitoring and fresh air for real estates - residential and commercial.

San Fernando's AQI Data Analytics Solutions
Air quality data monitoring platforms

Mobile App

Smart TV App

Web Dashboard

API

Widgets

Mobile App

Empower Your Decisions with Reliable Data

Get it onApp Store

Get it onGoogle Play

Your area’s real-time data with detailed parameters.

Personalized health advice as per current AQI.

Analytical data to identify trends and conditions.

Connect and control your air quality devices.

Air Quality FAQs
at San Fernando

Frequently Asked Questions About Air Quality

What is the current AQI level in San Fernando?

The current real-time AQI level in San Fernando is 157 (Unhealthy). This was last updated 2025-07-01 06:09:15 AM (Local Time).

When was the best AQI level in San Fernando in the last 24 hours?

The best AQI level was 57 (Moderate) at 4:09 PM, Jun 30, 2025 (Local Time) during the last 24 hours.

When was the worst AQI level in San Fernando in the last 24 hours?

The worst AQI level was 104 (Poor) at 2:09 AM (Local Time) during the last 24 hours.

What is the current trend of AQI levels in San Fernando during last 24 hours?

The AQI levels in San Fernando have been fluctuating throughout the last 24 hours. The levels have increased by highest 104 at 2:09 AM (Local Time), lowest 57 at 4:09 PM, Jun 30, 2025 (Local Time).

What actions are recommended as per the current AQI level in San Fernando?

Current AQI levels are unhealthy for everyone. It's advised to limit outdoor activities and consider using air purifiers indoors.