AQI PM2.5 PM10 CO SO2 NO2 O3

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Cheongju Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-05-31 04:39:39 AM (Local Time)

Live AQI

Air Quality is

Moderate

pm10 : 36 µg/m³

PM2.5 : 22 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

12 °C

Last Updated: 2025-05-31 04:39:39 AM (Local Time)

Map

Cheongju

Major Air Pollutants
Cheongju

Particulate Matter(PM2.5)

22µg/m³

Particulate Matter(PM10)

36µg/m³

Carbon Monoxide(CO)

341ppb

Sulfur Dioxide(SO2)

2ppb

Nitrogen Dioxide(NO2)

9ppb

Ozone(O3)

55ppb

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AQI Graph

Historical Air Quality Data
Cheongju

24 Hours

AQI

Cheongju

Want air quality data?

AQI Trends - Annual Air Quality Changes
Cheongju, Chungbuk, South Korea

AQI

Year

AQI

Annual AQI Trends

2020

63AQI

2021

67AQI

Rise

2022

68AQI

Rise

2023

66AQI

-3%

Fall

2024

58AQI

-12%

Fall

2025

68AQI

17%

Rise

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

Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedFebruary, 202395AQI

Least PollutedAugust, 202229AQI

* This data analysis is from year 2020 - 2025

Cheongju's Locations
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

Boeun Eup

Moderate

Bokdae Dong

Moderate

Cheongju

Moderate

Cheongwon Gun

Moderate

Gadeok Myeon

Moderate

Munhwa Dong

Moderate

Naedeok Dong

Moderate

Sannam Dong

Moderate

Songjeong Dong

Moderate

Yongam Dong

Moderate

South Korea's Metro Cities
Air Quality Index

Busan

Daegu

Daejeon

Gwangju

Incheon

Sejong

Seoul

Ulsan

Air Quality Calendar 2025
Cheongju

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 71	2 Jan 73	3 Jan 60	4 Jan 61
5 Jan 66	6 Jan 92	7 Jan 60	8 Jan 72	9 Jan 43	10 Jan 62	11 Jan 63
12 Jan 84	13 Jan 89	14 Jan 93	15 Jan 61	16 Jan 71	17 Jan 95	18 Jan 96
19 Jan 96	20 Jan 115	21 Jan 141	22 Jan 140	23 Jan 127	24 Jan 122	25 Jan 87
26 Jan 63	27 Jan 69	28 Jan 56	29 Jan 63	30 Jan 59	31 Jan 82	1 Feb 92

February

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Jan 63	27 Jan 69	28 Jan 56	29 Jan 63	30 Jan 59	31 Jan 82	1 Feb 92
2 Feb 91	3 Feb 65	4 Feb 57	5 Feb 51	6 Feb 53	7 Feb 51	8 Feb 48
9 Feb 58	10 Feb 61	11 Feb 83	12 Feb 82	13 Feb 54	14 Feb 80	15 Feb 60
16 Feb 103	17 Feb 55	18 Feb 65	19 Feb 51	20 Feb 57	21 Feb 56	22 Feb 60
23 Feb 59	24 Feb 57	25 Feb 57	26 Feb 75	27 Feb 64	28 Feb 78	1 Mar 105

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 59	24 Feb 57	25 Feb 57	26 Feb 75	27 Feb 64	28 Feb 78	1 Mar 105
2 Mar 82	3 Mar 58	4 Mar 48	5 Mar 43	6 Mar 70	7 Mar 83	8 Mar 79
9 Mar 88	10 Mar 89	11 Mar 102	12 Mar 93	13 Mar 95	14 Mar 81	15 Mar 52
16 Mar 68	17 Mar 60	18 Mar 72	19 Mar 76	20 Mar 86	21 Mar 90	22 Mar 98
23 Mar 99	24 Mar 101	25 Mar 124	26 Mar 81	27 Mar 89	28 Mar 69	29 Mar 50
30 Mar 49	31 Mar 57	1 Apr 71	2 Apr 71	3 Apr 77	4 Apr 80	5 Apr 65

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 49	31 Mar 57	1 Apr 71	2 Apr 71	3 Apr 77	4 Apr 80	5 Apr 65
6 Apr 65	7 Apr 63	8 Apr 73	9 Apr 64	10 Apr 73	11 Apr 76	12 Apr 61
13 Apr 58	14 Apr 43	15 Apr 52	16 Apr 60	17 Apr 63	18 Apr 77	19 Apr 52
20 Apr 58	21 Apr 40	22 Apr 40	23 Apr 31	24 Apr 56	25 Apr 56	26 Apr 48
27 Apr 40	28 Apr 49	29 Apr 59	30 Apr 54	1 May 47	2 May 50	3 May 48

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 40	28 Apr 49	29 Apr 59	30 Apr 54	1 May 47	2 May 50	3 May 48
4 May 44	5 May 46	6 May 41	7 May 50	8 May 67	9 May 45	10 May 45
11 May 63	12 May 65	13 May 68	14 May 70	15 May 52	16 May 47	17 May 44
18 May 57	19 May 57	20 May 40	21 May 41	22 May 51	23 May 55	24 May 45
25 May 43	26 May 56	27 May 65	28 May 73	29 May 74	30 May -	31 May -

Health Advice For People Living In
Cheongju

0Cigarettes per day

Weekly 0 Cigarettes

Monthly 0 Cigarettes

Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.

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

Cheongju

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

Incheon, South Korea

Pyeongtaek, South Korea

Dangjin, South Korea

Bucheon, South Korea

Anyang, South Korea

Hwasu Dong, South Korea

Goyang, South Korea

Osan, South Korea

10.

Gimpo, South Korea

Moderate

5xabove Standard

Last Updated: 30 May 2025, 08:07 PM

AQI City Rankings

Air Quality Solutions For Cheongju
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 Cheongju

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 Cheongju

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 Cheongju

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 Cheongju

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.

Cheongju'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 Cheongju

Frequently Asked Questions About Air Quality

What is the current AQI level in Cheongju?

The current real-time AQI level in Cheongju is 75 (Moderate). This was last updated 2025-05-31 04:39:39 AM (Local Time).

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

The best AQI level was 35 (Good) at 10:09 PM (Local Time) during the last 24 hours.

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

The worst AQI level was 75 (Moderate) at 4:09 AM, May 31, 2025 (Local Time) during the last 24 hours.

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

The AQI levels in Cheongju have been fluctuating throughout the last 24 hours. The levels have increased by highest 75 at 4:09 AM, May 31, 2025 (Local Time), lowest 35 at 10:09 PM (Local Time).

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

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