AQI PM2.5 PM10 CO SO2 NO2 O3

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Hosan Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in Chungnam

Last Updated: 2025-06-02 07:09:56 AM (Local Time)

Live AQI

Air Quality is

Moderate

pm10 : 44 µg/m³

PM2.5 : 27 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

18 °C

Last Updated: 2025-06-02 07:09:56 AM (Local Time)

Map

Hosan

Major Air Pollutants
Hosan

Particulate Matter(PM2.5)

27µg/m³

Particulate Matter(PM10)

44µg/m³

Carbon Monoxide(CO)

334ppb

Sulfur Dioxide(SO2)

3ppb

Nitrogen Dioxide(NO2)

8ppb

Ozone(O3)

52ppb

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AQI Graph

Historical Air Quality Data
Hosan

24 Hours

AQI

Hosan

Want air quality data?

AQI Trends - Annual Air Quality Changes
Hosan, Chungnam, South Korea

AQI

Year

AQI

Annual AQI Trends

2020

61AQI

2021

68AQI

11%

Rise

2022

68AQI

No Change

2023

67AQI

-1%

Fall

2024

60AQI

-10%

Fall

2025

67AQI

12%

Rise

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

Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedMarch, 202194AQI

Least PollutedJuly, 202440AQI

* This data analysis is from year 2020 - 2025

Hosan's Locations
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

Nonsansi Nonsan

Moderate

Seongdong myeon

Moderate

Tancheon Myeon

Moderate

Yeonmu Eup

Moderate

Yeosan myeon

Moderate

Yongdong Myeon

Moderate

South Korea's Metro Cities
Air Quality Index

Busan

Daegu

Daejeon

Gwangju

Incheon

Sejong

Seoul

Ulsan

Air Quality Calendar 2025
Hosan

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 70	2 Jan 64	3 Jan 57	4 Jan 61
5 Jan 61	6 Jan 75	7 Jan 57	8 Jan 65	9 Jan 42	10 Jan 58	11 Jan 62
12 Jan 72	13 Jan 83	14 Jan 87	15 Jan 61	16 Jan 66	17 Jan 81	18 Jan 83
19 Jan 90	20 Jan 110	21 Jan 136	22 Jan 140	23 Jan 118	24 Jan 112	25 Jan 77
26 Jan 61	27 Jan 63	28 Jan 46	29 Jan 50	30 Jan 59	31 Jan 75	1 Feb 82

February

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Jan 61	27 Jan 63	28 Jan 46	29 Jan 50	30 Jan 59	31 Jan 75	1 Feb 82
2 Feb 91	3 Feb 58	4 Feb 51	5 Feb 49	6 Feb 50	7 Feb 48	8 Feb 43
9 Feb 51	10 Feb 60	11 Feb 66	12 Feb 62	13 Feb 48	14 Feb 71	15 Feb 55
16 Feb 102	17 Feb 50	18 Feb 58	19 Feb 46	20 Feb 51	21 Feb 49	22 Feb 57
23 Feb 50	24 Feb 51	25 Feb 53	26 Feb 68	27 Feb 65	28 Feb 67	1 Mar 88

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 50	24 Feb 51	25 Feb 53	26 Feb 68	27 Feb 65	28 Feb 67	1 Mar 88
2 Mar 70	3 Mar 52	4 Mar 45	5 Mar 37	6 Mar 64	7 Mar 76	8 Mar 77
9 Mar 88	10 Mar 87	11 Mar 90	12 Mar 88	13 Mar 78	14 Mar 76	15 Mar 47
16 Mar 66	17 Mar 62	18 Mar 73	19 Mar 82	20 Mar 92	21 Mar 98	22 Mar 107
23 Mar 115	24 Mar 107	25 Mar 127	26 Mar 89	27 Mar 84	28 Mar 62	29 Mar 50
30 Mar 51	31 Mar 63	1 Apr 72	2 Apr 80	3 Apr 81	4 Apr 81	5 Apr 69

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 51	31 Mar 63	1 Apr 72	2 Apr 80	3 Apr 81	4 Apr 81	5 Apr 69
6 Apr 66	7 Apr 67	8 Apr 73	9 Apr 68	10 Apr 76	11 Apr 84	12 Apr 63
13 Apr 60	14 Apr 42	15 Apr 55	16 Apr 60	17 Apr 66	18 Apr 77	19 Apr 51
20 Apr 65	21 Apr 54	22 Apr 44	23 Apr 48	24 Apr 60	25 Apr 62	26 Apr 51
27 Apr 44	28 Apr 55	29 Apr 64	30 Apr 60	1 May 55	2 May 51	3 May 49

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 44	28 Apr 55	29 Apr 64	30 Apr 60	1 May 55	2 May 51	3 May 49
4 May 48	5 May 49	6 May 48	7 May 51	8 May 62	9 May 44	10 May 52
11 May 65	12 May 68	13 May 73	14 May 73	15 May 55	16 May 48	17 May 49
18 May 59	19 May 58	20 May 43	21 May 46	22 May 51	23 May 58	24 May 49
25 May 46	26 May 64	27 May 73	28 May 76	29 May 79	30 May 80	31 May -

June

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

Health Advice For People Living In
Hosan

1.3Cigarettes per day

Weekly 9.1 Cigarettes

Monthly 39.0 Cigarettes

Breathing the air in this location is as harmful as smoking 1.3 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.

Prevent Health Problems: Understand Your Risks

Hosan

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

Mid. Chances of Asthma

Asthma

Risk of Asthma symptoms is Mid. when AQI is Moderate (50-150)

Moderate symptoms including frequent wheezing, noticeable shortness of breath, chest tightness, and persistent cough.

Do's :

Limit outdoor activities when AQI is poor.
Clean indoor air with an air purifier to reduce exposure.
Soothe the respiratory tract with herbal teas or warm water to help alleviate symptoms.

Don'ts :

Exercise outdoors without a mask.
Stay in smoky areas with strong fumes.

Most Polluted Cities 2025
South Korea

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

Tangjin, South Korea

Goyang, South Korea

Bucheon, South Korea

Gimpo, South Korea

Incheon, South Korea

Dangjin, South Korea

Ansan, South Korea

Hwasu Dong, South Korea

Iksan, South Korea

10.

Pyeongtaek, South Korea

Moderate

6xabove Standard

Last Updated: 01 Jun 2025, 11:08 PM

AQI City Rankings

Air Quality Solutions For Hosan
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 Hosan

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 Hosan

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 Hosan

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 Hosan

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.

Hosan'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

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 Hosan

Frequently Asked Questions About Air Quality

What is the current AQI level in Hosan?

The current real-time AQI level in Hosan is 85 (Moderate). This was last updated 2025-06-02 07:09:56 AM (Local Time).

When was the best AQI level in Hosan in the last 24 hours?

The best AQI level was 72 (Moderate) at 7:09 PM (Local Time) during the last 24 hours.

When was the worst AQI level in Hosan in the last 24 hours?

The worst AQI level was 116 (Poor) at 10:09 AM (Local Time) during the last 24 hours.

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

The AQI levels in Hosan have been fluctuating throughout the last 24 hours. The levels have increased by highest 116 at 10:09 AM (Local Time), lowest 72 at 7:09 PM (Local Time).

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

Current AQI levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.