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Koga Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-08-22 01:39:23 PM (Local Time)

location image
Live AQI
51(AQI-US)
Air Quality is
Moderate
pm10 :  21 µg/m³
PM2.5 :  10 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Koga
partly cloudy

34 °C

Partly cloudy
Humidity
Humidity50 %
Wind Speed
Wind Speed4 km/h
UV Index
UV Index8
Last Updated: 2025-08-22 01:39:23 PM (Local Time)
Map

Koga

Major Air Pollutants

Koga

PM2.5's Icon

Particulate Matter(PM2.5)

10µg/m³

PM10's Icon

Particulate Matter(PM10)

21µg/m³

CO's Icon

Carbon Monoxide(CO)

60ppb

SO2's Icon

Sulfur Dioxide(SO2)

1ppb

NO2's Icon

Nitrogen Dioxide(NO2)

4ppb

O3's Icon

Ozone(O3)

40ppb

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AQI Graph

Historical Air Quality Data

Koga

24 Hours
AQI
Koga
AQI
.
21-08-2025Time22-08-2025
45
Min.at 1:09 AM on 22nd Aug
58
Max.at 12:09 PM on 22nd Aug

Want air quality data?

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Koga, Ibaraki, Japan

AQI
Year
.
AQI

Annual AQI Trends

2020
35AQI
2021
37AQI
6%
Rise
2022
35AQI
-5%
Fall
2023
36AQI
3%
Rise
2024
35AQI
-3%
Fall
2025
36AQI
3%
Rise
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
1%
Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedNovember, 202045AQI
Least PollutedAugust, 202426AQI

* This data analysis is from year 2020 - 2025

Koga's Locations

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Moderate
53
10
21
32
64
Good
49
9
21
33
63

Japan's Metro Cities

Air Quality Index

Aomori City AQI

Aomori

33

temp.27°C
hum.58%
Higashi Hiroshima City AQI

Higashi Hiroshima

49

temp.29°C
hum.75%
Higashi Osaka City AQI

Higashi Osaka

62

temp.34°C
hum.56%
Kyoto City AQI

Kyoto

60

temp.35°C
hum.53%
Saitama City AQI

Saitama

55

temp.34°C
hum.53%
Sendai City AQI

Sendai

49

temp.28°C
hum.79%
Tokyo City AQI

Tokyo

61

temp.34°C
hum.53%
Yokohama City AQI

Yokohama

61

temp.32°C
hum.67%

Air Quality Calendar 2025

Koga

2025
AQI
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jan
31
2 Jan
29
3 Jan
24
4 Jan
26
5 Jan
33
6 Jan
50
7 Jan
34
8 Jan
37
9 Jan
31
10 Jan
28
11 Jan
27
12 Jan
40
13 Jan
29
14 Jan
38
15 Jan
35
16 Jan
34
17 Jan
30
18 Jan
37
19 Jan
54
20 Jan
38
21 Jan
42
22 Jan
37
23 Jan
43
24 Jan
44
25 Jan
36
26 Jan
33
27 Jan
37
28 Jan
40
29 Jan
32
30 Jan
32
31 Jan
29
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Feb
39
2 Feb
30
3 Feb
35
4 Feb
30
5 Feb
32
6 Feb
29
7 Feb
30
8 Feb
30
9 Feb
30
10 Feb
30
11 Feb
30
12 Feb
41
13 Feb
34
14 Feb
34
15 Feb
31
16 Feb
37
17 Feb
35
18 Feb
32
19 Feb
31
20 Feb
31
21 Feb
31
22 Feb
31
23 Feb
33
24 Feb
32
25 Feb
33
26 Feb
37
27 Feb
40
28 Feb
49
March
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Mar
47
2 Mar
56
3 Mar
40
4 Mar
37
5 Mar
28
6 Mar
32
7 Mar
31
8 Mar
38
9 Mar
33
10 Mar
37
11 Mar
38
12 Mar
41
13 Mar
40
14 Mar
31
15 Mar
36
16 Mar
21
17 Mar
21
18 Mar
22
19 Mar
18
20 Mar
23
21 Mar
37
22 Mar
45
23 Mar
48
24 Mar
48
25 Mar
63
26 Mar
62
27 Mar
67
28 Mar
49
29 Mar
37
30 Mar
34
31 Mar
31
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Apr
25
2 Apr
21
3 Apr
21
4 Apr
21
5 Apr
24
6 Apr
23
7 Apr
25
8 Apr
33
9 Apr
25
10 Apr
42
11 Apr
35
12 Apr
34
13 Apr
25
14 Apr
28
15 Apr
23
16 Apr
24
17 Apr
40
18 Apr
48
19 Apr
58
20 Apr
50
21 Apr
40
22 Apr
45
23 Apr
28
24 Apr
35
25 Apr
34
26 Apr
40
27 Apr
43
28 Apr
42
29 Apr
31
30 Apr
39
May
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 May
35
2 May
24
3 May
28
4 May
31
5 May
30
6 May
27
7 May
22
8 May
27
9 May
28
10 May
19
11 May
20
12 May
20
13 May
32
14 May
37
15 May
38
16 May
43
17 May
24
18 May
38
19 May
34
20 May
53
21 May
49
22 May
44
23 May
42
24 May
37
25 May
29
26 May
27
27 May
24
28 May
23
29 May
28
30 May
21
31 May
18
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jun
20
2 Jun
29
3 Jun
28
4 Jun
25
5 Jun
33
6 Jun
42
7 Jun
46
8 Jun
56
9 Jun
48
10 Jun
33
11 Jun
30
12 Jun
40
13 Jun
37
14 Jun
32
15 Jun
29
16 Jun
37
17 Jun
43
18 Jun
37
19 Jun
40
20 Jun
38
21 Jun
34
22 Jun
29
23 Jun
28
24 Jun
30
25 Jun
24
26 Jun
28
27 Jun
31
28 Jun
31
29 Jun
39
30 Jun
44
July
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jul
44
2 Jul
47
3 Jul
48
4 Jul
47
5 Jul
51
6 Jul
60
7 Jul
73
8 Jul
74
9 Jul
75
10 Jul
58
11 Jul
45
12 Jul
48
13 Jul
50
14 Jul
41
15 Jul
37
16 Jul
38
17 Jul
38
18 Jul
34
19 Jul
34
20 Jul
33
21 Jul
38
22 Jul
40
23 Jul
42
24 Jul
43
25 Jul
42
26 Jul
44
27 Jul
38
28 Jul
40
29 Jul
38
30 Jul
32
31 Jul
32
August
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Aug
34
2 Aug
40
3 Aug
43
4 Aug
57
5 Aug
49
6 Aug
49
7 Aug
40
8 Aug
38
9 Aug
37
10 Aug
31
11 Aug
34
12 Aug
34
13 Aug
32
14 Aug
32
15 Aug
33
16 Aug
34
17 Aug
38
18 Aug
41
19 Aug
44
20 Aug
48
21 Aug
46
22 Aug
-
23 Aug
-
24 Aug
-
25 Aug
-
26 Aug
-
27 Aug
-
28 Aug
-
29 Aug
-
30 Aug
-
31 Aug
-
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

Health Advice For People Living In

Koga

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

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

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.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Koga

  • asthma due to air pollution in KogaAsthma
  • heart due to air pollution in KogaHeart Issues
  • allergy due to air pollution in KogaAllergies
  • sinus due to air pollution in KogaSinus
  • flu due to air pollution in KogaCold/Flu
  • copd due to air pollution in KogaChronic (COPD)
asthma due to air pollution in Koga

Mild Chances of Asthma

Asthma

Risk of Asthma symptoms is Mild 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.

Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

Most Polluted Cities 2025

Japan

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.

Sumiyama, Japan

125
Poor
8xabove Standard

2.

Nishio, Japan

123
Poor
8xabove Standard

3.

Tsubata, Japan

120
Poor
8xabove Standard

4.

Hashima, Japan

120
Poor
8xabove Standard

5.

Daitocho, Japan

120
Poor
8xabove Standard

6.

Tsushima, Japan

119
Poor
8xabove Standard

7.

Kamiichi, Japan

118
Poor
8xabove Standard

8.

Ino, Japan

118
Poor
8xabove Standard

9.

Yakage, Japan

117
Poor
8xabove Standard

10.

Kamo, Japan

117
Poor
8xabove Standard

Last Updated: 22 Aug 2025, 04:42 AM

AQI City Rankings

Air Quality Solutions For Koga

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 Koga

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 Koga

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 Koga

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 Koga

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 Koga

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 Koga

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 Koga

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 Koga

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 Koga

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 Koga

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 Koga

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 Koga

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 Koga

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 Koga

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 Koga

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 Koga

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.

Koga'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 Koga
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.

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 Koga

Frequently Asked Questions About Air Quality

What is the current AQI level in Koga?

The current real-time AQI level in Koga is 51 (Moderate) due to recent rainfall by 0.01mm/hr. This was last updated 2025-08-22 01:39:23 PM (Local Time).

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

The best AQI level was 45 (Good) at 1:09 AM (Local Time) during the last 24 hours.

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

The worst AQI level was 58 (Moderate) at 12:09 PM (Local Time) during the last 24 hours.

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

The AQI levels in Koga have been fluctuating throughout the last 24 hours. The levels have increased by highest 58 at 12:09 PM (Local Time), lowest 45 at 1:09 AM (Local Time).

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

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.

Over 2 lakh residents reported air pollution hospitalisations in Delhi from 2022 to 2024. 

Over 2 lakh residents reported air pollution hospitalisations in Delhi from 2022 to 2024. 

21 Aug 2025Shakshi
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19 Aug 2025Shakshi
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13 Aug 2025Shakshi
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12 Aug 2025Shakshi
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7 Aug 2025Shakshi
DU Cut-Off 2025: How’s the Air Near Your Dream College?

DU Cut-Off 2025: How’s the Air Near Your Dream College?

6 Aug 2025Shakshi
Why You Should Add a Real-Time Weather and AQI Widget to Your Website?

Why You Should Add a Real-Time Weather and AQI Widget to Your Website?

1 Aug 2025Shakshi
Minneapolis Air Quality Alert: Wildfire Smoke Pushes Pollution to Unhealthy Levels

Minneapolis Air Quality Alert: Wildfire Smoke Pushes Pollution to Unhealthy Levels

31 Jul 2025Shakshi
New Delhi Annual Air Quality: Comparative Analysis of AQI (2020–2025)

New Delhi Annual Air Quality: Comparative Analysis of AQI (2020–2025)

26 Jul 2025Gyane Haobijam
Free Air Quality Monitor from AQI.in: How Anyone Can Track Pollution?

Free Air Quality Monitor from AQI.in: How Anyone Can Track Pollution?

26 Jul 2025Shakshi
Prana Air Logo

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
Prana Air Logo

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
Prana Air Logo

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