AQI PM2.5 PM10 CO SO2 NO2 O3

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Honmachi Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-05-31 03:24:49 AM (Local Time)

Live AQI

Air Quality is

Moderate

pm10 : 21 µg/m³

PM2.5 : 13 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

13 °C

Last Updated: 2025-05-31 03:24:49 AM (Local Time)

Map

Honmachi

Major Air Pollutants
Honmachi

Particulate Matter(PM2.5)

13µg/m³

Particulate Matter(PM10)

21µg/m³

Carbon Monoxide(CO)

101ppb

Sulfur Dioxide(SO2)

1ppb

Nitrogen Dioxide(NO2)

6ppb

Ozone(O3)

38ppb

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AQI Graph

Historical Air Quality Data
Honmachi

24 Hours

AQI

Honmachi

Want air quality data?

AQI Trends - Annual Air Quality Changes
Honmachi, Kumamoto, Japan

AQI

Year

AQI

Annual AQI Trends

2020

45AQI

2021

44AQI

-2%

Fall

2022

51AQI

16%

Rise

2023

50AQI

-2%

Fall

2024

50AQI

No Change

2025

48AQI

-4%

Fall

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

Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedJanuary, 2024104AQI

Least PollutedJuly, 202032AQI

* This data analysis is from year 2020 - 2025

Honmachi's Locations
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

Koga Kamimachi

Moderate

Matsuejomachi

Moderate

Matsushimamachi Aitsu

Moderate

Miyajimachi

Moderate

Yatsushiro

Moderate

Japan's Metro Cities
Air Quality Index

Aomori

Higashi Hiroshima

Higashi Osaka

Kyoto

Saitama

Sendai

Nishitokyo

Yokohama

Air Quality Calendar 2025
Honmachi

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 37	2 Jan 48	3 Jan 43	4 Jan 38
5 Jan 38	6 Jan 44	7 Jan 32	8 Jan 38	9 Jan 30	10 Jan 32	11 Jan 29
12 Jan 36	13 Jan 44	14 Jan 46	15 Jan 49	16 Jan 42	17 Jan 49	18 Jan 50
19 Jan 57	20 Jan 50	21 Jan 72	22 Jan 72	23 Jan 71	24 Jan 71	25 Jan 54
26 Jan 45	27 Jan 39	28 Jan 36	29 Jan 33	30 Jan 36	31 Jan 43	1 Feb 41

February

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Jan 45	27 Jan 39	28 Jan 36	29 Jan 33	30 Jan 36	31 Jan 43	1 Feb 41
2 Feb 34	3 Feb 47	4 Feb 32	5 Feb 39	6 Feb 32	7 Feb 34	8 Feb 31
9 Feb 32	10 Feb 31	11 Feb 41	12 Feb 40	13 Feb 35	14 Feb 40	15 Feb 32
16 Feb 37	17 Feb 46	18 Feb 35	19 Feb 39	20 Feb 36	21 Feb 38	22 Feb 43
23 Feb 38	24 Feb 42	25 Feb 37	26 Feb 39	27 Feb 64	28 Feb 50	1 Mar 53

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 38	24 Feb 42	25 Feb 37	26 Feb 39	27 Feb 64	28 Feb 50	1 Mar 53
2 Mar 46	3 Mar 41	4 Mar 32	5 Mar 32	6 Mar 33	7 Mar 36	8 Mar 43
9 Mar 45	10 Mar 51	11 Mar 42	12 Mar 49	13 Mar 55	14 Mar 48	15 Mar 37
16 Mar 33	17 Mar 50	18 Mar 44	19 Mar 38	20 Mar 50	21 Mar 52	22 Mar 62
23 Mar 59	24 Mar 45	25 Mar 62	26 Mar 64	27 Mar 63	28 Mar 66	29 Mar 63
30 Mar 60	31 Mar 61	1 Apr 61	2 Apr 54	3 Apr 55	4 Apr 54	5 Apr 57

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 60	31 Mar 61	1 Apr 61	2 Apr 54	3 Apr 55	4 Apr 54	5 Apr 57
6 Apr 57	7 Apr 54	8 Apr 53	9 Apr 61	10 Apr 57	11 Apr 62	12 Apr 63
13 Apr 58	14 Apr 63	15 Apr 49	16 Apr 59	17 Apr 56	18 Apr 58	19 Apr 58
20 Apr 53	21 Apr 57	22 Apr 49	23 Apr 45	24 Apr 50	25 Apr 58	26 Apr 58
27 Apr 58	28 Apr 55	29 Apr 57	30 Apr 60	1 May 55	2 May 51	3 May 51

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 58	28 Apr 55	29 Apr 57	30 Apr 60	1 May 55	2 May 51	3 May 51
4 May 50	5 May 51	6 May 47	7 May 49	8 May 57	9 May 46	10 May 51
11 May 54	12 May 59	13 May 60	14 May 62	15 May 61	16 May 64	17 May 48
18 May 54	19 May 58	20 May 51	21 May 44	22 May 47	23 May 55	24 May 47
25 May 47	26 May 49	27 May 52	28 May 56	29 May 56	30 May -	31 May -

Health Advice For People Living In
Honmachi

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

Honmachi

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
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

Kamigoto, Japan

Honmachi, Japan

Isahaya, Japan

Togitsu, Japan

Ureshinomachi Shimojuku, Japan

Moderate

4xabove Standard

Takeocho Takeo, Japan

Arao, Japan

Saga, Japan

Mihara, Japan

10.

Saikaicho Kobago, Japan

Moderate

3xabove Standard

Last Updated: 30 May 2025, 06:56 PM

AQI City Rankings

Air Quality Solutions For Honmachi
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 Honmachi

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 Honmachi

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 Honmachi

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 Honmachi

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.

Honmachi'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 Honmachi

Frequently Asked Questions About Air Quality

What is the current AQI level in Honmachi?

The current real-time AQI level in Honmachi is 57 (Moderate). This was last updated 2025-05-31 03:24:49 AM (Local Time).

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

The best AQI level was 44 (Good) at 10:09 AM (Local Time) during the last 24 hours.

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

The worst AQI level was 57 (Moderate) at 5:09 PM (Local Time) during the last 24 hours.

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

The AQI levels in Honmachi have been fluctuating throughout the last 24 hours. The levels have increased by highest 57 at 5:09 PM (Local Time), lowest 44 at 10:09 AM (Local Time).

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

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