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Ansan Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-06-01 02:55:07 AM (Local Time)

location image
Live AQI
90
Air Quality is
Moderate
pm10 :  49 µg/m³
PM2.5 :  30 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level in Ansan
mist

17 °C

Mist
Humidity
Humidity77 %
Wind Speed
Wind Speed5 km/h
UV Index
UV Index0
Last Updated: 2025-06-01 02:55:07 AM (Local Time)
Map

Ansan

Major Air Pollutants

Ansan

PM2.5's Icon

Particulate Matter(PM2.5)

30µg/m³

PM10's Icon

Particulate Matter(PM10)

49µg/m³

CO's Icon

Carbon Monoxide(CO)

367ppb

SO2's Icon

Sulfur Dioxide(SO2)

3ppb

NO2's Icon

Nitrogen Dioxide(NO2)

18ppb

O3's Icon

Ozone(O3)

47ppb

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AQI Graph

Historical Air Quality Data

Ansan

24 Hours
AQI
Ansan

Want air quality data?

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Ansan, Gyeonggi, South Korea

AQI
Year
.
AQI

Annual AQI Trends

2020
61AQI
2021
69AQI
13%
Rise
2022
68AQI
-1%
Fall
2023
68AQI
0%
No Change
2024
62AQI
-9%
Fall
2025
70AQI
13%
Rise
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
3%
Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedMarch, 202199AQI
Least PollutedAugust, 202234AQI

* This data analysis is from year 2020 - 2025

Ansan's Locations

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Ansan
Moderate
87
28
46
21
60
Baegot dong
Moderate
96
34
54
21
64
Bono
Moderate
87
28
48
22
60
Bugs Dong
Moderate
90
30
48
22
60
Gojan Dong
Moderate
82
25
40
21
60
Hosu Dong
Moderate
82
26
45
22
60
Janghyeon Dong
Moderate
91
31
51
22
60
Jeongwang Dong
Moderate
96
33
54
21
64
Jungangro1
Moderate
82
26
40
21
60
Saesol Dong
Moderate
90
30
48
21
60
Seohaean ro
Moderate
94
32
51
21
63
Siheung
Moderate
90
30
51
22
60
Sihwa
Moderate
96
33
54
21
64
Wongok
Moderate
93
32
50
22
60
Wonsi Dong
Moderate
93
31
49
21
60

South Korea's Metro Cities

Air Quality Index

Busan City AQI

Busan

56

temp.14°C
hum.77%
Daegu City AQI

Daegu

63

temp.14°C
hum.72%
Daejeon City AQI

Daejeon

68

temp.14°C
hum.82%
Gwangju City AQI

Gwangju

78

temp.14°C
hum.88%
Incheon City AQI

Incheon

94

temp.15°C
hum.94%
Sejong City AQI

Sejong

69

temp.14°C
hum.82%
Seoul City AQI

Seoul

79

temp.15°C
hum.100%
Ulsan City AQI

Ulsan

54

temp.14°C
hum.77%

Air Quality Calendar 2025

Ansan

2025
AQI
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jan
73
2 Jan
54
3 Jan
57
4 Jan
59
5 Jan
67
6 Jan
94
7 Jan
52
8 Jan
66
9 Jan
42
10 Jan
49
11 Jan
56
12 Jan
75
13 Jan
88
14 Jan
100
15 Jan
53
16 Jan
77
17 Jan
74
18 Jan
80
19 Jan
81
20 Jan
130
21 Jan
133
22 Jan
150
23 Jan
115
24 Jan
110
25 Jan
70
26 Jan
56
27 Jan
66
28 Jan
57
29 Jan
58
30 Jan
48
31 Jan
70
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Feb
80
2 Feb
89
3 Feb
52
4 Feb
51
5 Feb
42
6 Feb
53
7 Feb
45
8 Feb
39
9 Feb
44
10 Feb
53
11 Feb
70
12 Feb
78
13 Feb
53
14 Feb
91
15 Feb
58
16 Feb
112
17 Feb
49
18 Feb
61
19 Feb
45
20 Feb
54
21 Feb
52
22 Feb
56
23 Feb
52
24 Feb
55
25 Feb
55
26 Feb
69
27 Feb
61
28 Feb
85
March
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Mar
102
2 Mar
82
3 Mar
56
4 Mar
46
5 Mar
36
6 Mar
78
7 Mar
94
8 Mar
89
9 Mar
101
10 Mar
121
11 Mar
111
12 Mar
108
13 Mar
100
14 Mar
79
15 Mar
61
16 Mar
73
17 Mar
66
18 Mar
74
19 Mar
81
20 Mar
92
21 Mar
102
22 Mar
109
23 Mar
114
24 Mar
114
25 Mar
128
26 Mar
95
27 Mar
93
28 Mar
59
29 Mar
48
30 Mar
43
31 Mar
61
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Apr
76
2 Apr
86
3 Apr
87
4 Apr
84
5 Apr
72
6 Apr
66
7 Apr
74
8 Apr
79
9 Apr
76
10 Apr
84
11 Apr
94
12 Apr
69
13 Apr
65
14 Apr
47
15 Apr
58
16 Apr
63
17 Apr
70
18 Apr
79
19 Apr
50
20 Apr
66
21 Apr
55
22 Apr
47
23 Apr
35
24 Apr
66
25 Apr
60
26 Apr
55
27 Apr
42
28 Apr
60
29 Apr
70
30 Apr
59
May
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 May
62
2 May
50
3 May
49
4 May
47
5 May
54
6 May
42
7 May
56
8 May
63
9 May
52
10 May
62
11 May
72
12 May
75
13 May
76
14 May
73
15 May
66
16 May
57
17 May
51
18 May
57
19 May
62
20 May
40
21 May
50
22 May
52
23 May
66
24 May
50
25 May
50
26 May
69
27 May
83
28 May
89
29 May
83
30 May
91
31 May
-
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

Health Advice For People Living In

Ansan

1.4Cigarettes per day

Cigarette
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 Purifier
    Air PurifierTurn On
  • Car Filter
    Car FilterMust
  • N95 Mask
    N95 MaskMust
  • Stay Indoor
    Stay IndoorMust

Must turn on the air purifier to enjoy fresh air.

Prevent Health Problems: Understand Your Risks

Ansan

  • asthma due to air pollution in AnsanAsthma
  • heart due to air pollution in AnsanHeart Issues
  • allergy due to air pollution in AnsanAllergies
  • sinus due to air pollution in AnsanSinus
  • flu due to air pollution in AnsanCold/Flu
  • copd due to air pollution in AnsanChronic (COPD)
asthma due to air pollution in Ansan

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

Follow

1.

Tangjin, South Korea

96
Moderate
6xabove Standard

2.

Incheon, South Korea

94
Moderate
6xabove Standard

3.

Bucheon, South Korea

90
Moderate
6xabove Standard

4.

Ansan, South Korea

90
Moderate
6xabove Standard

5.

Pyeongtaek, South Korea

90
Moderate
6xabove Standard

6.

Hwasu Dong, South Korea

89
Moderate
6xabove Standard

7.

Iksan, South Korea

88
Moderate
6xabove Standard

8.

Dangjin, South Korea

88
Moderate
6xabove Standard

9.

Gimpo, South Korea

86
Moderate
6xabove Standard

10.

Kimje, South Korea

86
Moderate
6xabove Standard

Last Updated: 31 May 2025, 06:29 PM

AQI City Rankings

Air Quality Solutions For Ansan

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

Air Quality Monitor

Monitor the air quality
Air Quality Sensors

Air Quality Sensors

Sensors to measure the air quality
Fresh Air Machine

Fresh Air Machine

Clean the air you breathe
Car Cabin Filter

Car Cabin Filter

Purify the air in your car
N95 Mask

N95 Mask

Shield yourself from pollution
air quality solutions for offices for Ansan

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 for Ansan

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 Ansan

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 for Ansan

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 for Ansan

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 for Ansan

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 for Ansan

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 for Ansan

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 for Ansan

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 Ansan

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 for Ansan

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 for Ansan

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 Ansan

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 for Ansan

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 for Ansan

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 for Ansan

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.

Ansan's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
Smart TV AppSmart TV App
Web DashboardWeb Dashboard
APIAPI
WidgetsWidgets
aqi air quality app for Ansan
Mobile App

Empower Your Decisions with Reliable Data

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

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

Personalized health advice as per current AQI.

Personalized health advice as per current AQI.

Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.

Connect and control your air quality devices.

Connect and control your air quality devices.

Air Quality FAQs

at Ansan

Frequently Asked Questions About Air Quality

What is the current AQI level in Ansan?

The current real-time AQI level in Ansan is 90 (Moderate). This was last updated 2025-06-01 02:55:07 AM (Local Time).

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

The best AQI level was 82 (Moderate) at 3:39 AM (Local Time) during the last 24 hours.

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

The worst AQI level was 115 (Poor) at 2:09 PM (Local Time) during the last 24 hours.

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

The AQI levels in Ansan have been fluctuating throughout the last 24 hours. The levels have increased by highest 115 at 2:09 PM (Local Time), lowest 82 at 3:39 AM (Local Time).

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

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

Recent AQI Blogs

Read the latest news

Here are some latest blogs that you can go through to find out more air pollution.

Wildfire Alert in Northeastern Minnesota: From Crisis to Control Journey.

Wildfire Alert in Northeastern Minnesota: From Crisis to Control Journey.

30 May 2025Shakshi
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22 May 2025Shakshi
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15 May 2025Gyane
Carbon monoxide (CO) or PM2.5: Which is more dangerous for human health and the environment?

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14 May 2025Shakshi
Methane Emissions from Delhi’s Landfills: An Invisible Threat

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12 May 2025Shakshi
The Hidden Link Between Air Pollution and Parkinson’s Disease: What the Study Shows?

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7 May 2025Shakshi
World Asthma Day 2025: The Link Between Air Pollution and Asthma

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6 May 2025Shakshi
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Prana Sense

Air Quality Monitor

Air Quality Index depicts the extent of air pollution at a particular location.

Prana Sense Air Quality MonitorPrana Sense Air Quality Monitor
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Pocket PM

Air Quality Monitor

Know the air quality around you wherever you are with the Pocket monitor to get instant air quality insights.

Pocket PM Air Quality MonitorPocket PM Air Quality Monitor
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Cair +

Indoor Air Quality Monitor

Track indoor air quality with advanced connectivity and portability for real-time air quality data.

Cair + Indoor Air Quality MonitorCair + Indoor Air Quality Monitor