AQI PM2.5 PM10 CO SO2 NO2 O3

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Hiroshima Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-11-28 07:35:46 AM (Local Time)

Live AQI

53(AQI-US)

Air Quality is

Moderate

pm10 : 24 µg/m³

PM2.5 : 11 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

8 °C

Last Updated: 2025-11-28 07:35:46 AM (Local Time)

Map

Hiroshima

Major Air Pollutants
Hiroshima

Particulate Matter(PM2.5)

11µg/m³

Particulate Matter(PM10)

24µg/m³

Carbon Monoxide(CO)

225ppb

Sulfur Dioxide(SO2)

1ppb

Nitrogen Dioxide(NO2)

8ppb

Ozone(O3)

26ppb

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AQI Graph

Historical Air Quality Data
Hiroshima

24 Hours

AQI

Hiroshima

AQI

27-11-2025Time28-11-2025

Time	Hiroshima
07 AM	57
08 AM	58
09 AM	58
10 AM	58
11 AM	58
12 PM	59
01 PM	63
02 PM	62
03 PM	62
04 PM	71
05 PM	70
06 PM	69
07 PM	70
08 PM	68
09 PM	69
10 PM	68
11 PM	68
12 AM	55
01 AM	56
02 AM	57
03 AM	59
04 AM	58
05 AM	56
06 AM	52
07 AM	53

Min.at 6:05 AM on 28th Nov

Max.at 4:00 PM on 27th Nov

Want air quality data?

AQI Trends - Annual Air Quality Changes
Hiroshima, Japan

AQI

Year

AQI

AQI	AQI
Mar 2020	41
Apr 2020	38
May 2020	43
Jun 2020	47
Jul 2020	33
Aug 2020	56
Sep 2020	31
Oct 2020	33
Nov 2020	38
Dec 2020	34
Jan 2021	36
Feb 2021	40
Mar 2021	46
Apr 2021	38
May 2021	44
Jun 2021	51
Jul 2021	41
Aug 2021	37
Sep 2021	39
Oct 2021	38
Nov 2021	39
Dec 2021	35
Jan 2022	36
Feb 2022	39
Mar 2022	47
Apr 2022	47
May 2022	52
Jun 2022	45
Jul 2022	44
Aug 2022	28
Sep 2022	36
Oct 2022	36
Nov 2022	41
Dec 2022	32
Jan 2023	41
Feb 2023	39
Mar 2023	50
Apr 2023	51
May 2023	46
Jun 2023	48
Jul 2023	40
Aug 2023	34
Sep 2023	37
Oct 2023	38
Nov 2023	41
Dec 2023	38
Jan 2024	33
Feb 2024	37
Mar 2024	42
Apr 2024	51
May 2024	46
Jun 2024	44
Jul 2024	36
Aug 2024	37
Sep 2024	39
Oct 2024	34
Nov 2024	35
Dec 2024	27
Jan 2025	34
Feb 2025	34
Mar 2025	44
Apr 2025	27
May 2025	39
Jun 2025	45
Jul 2025	50
Aug 2025	44
Sep 2025	28
Oct 2025	44
Nov 2025	44

Annual AQI Trends

2020

40AQI

2021

40AQI

No Change

2022

41AQI

Rise

2023

42AQI

Rise

2024

39AQI

-7%

Fall

2025

39AQI

No Change

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

No Change

Most & Least Polluted Months

Most PollutedAugust, 202056AQI

Least PollutedApril, 202527AQI

* This data analysis is from year 2020 - 2025

Hiroshima's Cities
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

Moderate

Good

Moderate

Good

Good

Moderate

Moderate

Good

Moderate

Japan's Metro Cities
Air Quality Index

Aomori

Higashi Hiroshima

Higashi Osaka

Kyoto

Saitama

Sendai

Tokyo

Yokohama

Air Quality Calendar 2025
Hiroshima

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 26	2 Jan 34	3 Jan 29	4 Jan 28
5 Jan 26	6 Jan 26	7 Jan 28	8 Jan 26	9 Jan 27	10 Jan 25	11 Jan 26
12 Jan 27	13 Jan 32	14 Jan 32	15 Jan 35	16 Jan 31	17 Jan 28	18 Jan 26
19 Jan 39	20 Jan 31	21 Jan 38	22 Jan 53	23 Jan 63	24 Jan 50	25 Jan 44
26 Jan 37	27 Jan 33	28 Jan 32	29 Jan 30	30 Jan 42	31 Jan 38	1 Feb 41

February

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

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 32	24 Feb 34	25 Feb 35	26 Feb 37	27 Feb 43	28 Feb 43	1 Mar 47
2 Mar 73	3 Mar 45	4 Mar 41	5 Mar 32	6 Mar 37	7 Mar 33	8 Mar 40
9 Mar 41	10 Mar 43	11 Mar 44	12 Mar 45	13 Mar 53	14 Mar 33	15 Mar 31
16 Mar 22	17 Mar 34	18 Mar 22	19 Mar 40	20 Mar 42	21 Mar 39	22 Mar 63
23 Mar 44	24 Mar 43	25 Mar 60	26 Mar 73	27 Mar 71	28 Mar 46	29 Mar 42
30 Mar 41	31 Mar 41	1 Apr 43	2 Apr 36	3 Apr 25	4 Apr 31	5 Apr 27

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 41	31 Mar 41	1 Apr 43	2 Apr 36	3 Apr 25	4 Apr 31	5 Apr 27
6 Apr 23	7 Apr 22	8 Apr 19	9 Apr 27	10 Apr 25	11 Apr 27	12 Apr 26
13 Apr 22	14 Apr 23	15 Apr 19	16 Apr 22	17 Apr 24	18 Apr 27	19 Apr 25
20 Apr 24	21 Apr 19	22 Apr 19	23 Apr 15	24 Apr 15	25 Apr 51	26 Apr 30
27 Apr 38	28 Apr 33	29 Apr 30	30 Apr 31	1 May 49	2 May 37	3 May 47

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 38	28 Apr 33	29 Apr 30	30 Apr 31	1 May 49	2 May 37	3 May 47
4 May 29	5 May 34	6 May 24	7 May 24	8 May 27	9 May 38	10 May 31
11 May 42	12 May 51	13 May 43	14 May 59	15 May 56	16 May 43	17 May 43
18 May 37	19 May 58	20 May 59	21 May 43	22 May 43	23 May 36	24 May 30
25 May 23	26 May 24	27 May 38	28 May 27	29 May 47	30 May 39	31 May 40

June

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
1 Jun 46	2 Jun 55	3 Jun 29	4 Jun 47	5 Jun 46	6 Jun 47	7 Jun 43
8 Jun 67	9 Jun 63	10 Jun 37	11 Jun 34	12 Jun 54	13 Jun 44	14 Jun 42
15 Jun 29	16 Jun 28	17 Jun 26	18 Jun 30	19 Jun 44	20 Jun 50	21 Jun 50
22 Jun 62	23 Jun 50	24 Jun 45	25 Jun 43	26 Jun 49	27 Jun 55	28 Jun 46
29 Jun 47	30 Jun 56	1 Jul 55	2 Jul 82	3 Jul 83	4 Jul 101	5 Jul 88

July

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Jun 47	30 Jun 56	1 Jul 55	2 Jul 82	3 Jul 83	4 Jul 101	5 Jul 88
6 Jul 73	7 Jul 66	8 Jul 69	9 Jul 65	10 Jul 76	11 Jul 59	12 Jul 54
13 Jul 55	14 Jul 45	15 Jul 46	16 Jul 48	17 Jul 48	18 Jul 38	19 Jul 34
20 Jul 31	21 Jul 29	22 Jul 29	23 Jul 30	24 Jul 40	25 Jul 27	26 Jul 25
27 Jul 23	28 Jul 32	29 Jul 28	30 Jul 39	31 Jul 41	1 Aug 41	2 Aug 42

August

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Jul 23	28 Jul 32	29 Jul 28	30 Jul 39	31 Jul 41	1 Aug 41	2 Aug 42
3 Aug 44	4 Aug 56	5 Aug 47	6 Aug 47	7 Aug 48	8 Aug 49	9 Aug 37
10 Aug 33	11 Aug 31	12 Aug 33	13 Aug 39	14 Aug 45	15 Aug 43	16 Aug 43
17 Aug 40	18 Aug 45	19 Aug 47	20 Aug 46	21 Aug 42	22 Aug 41	23 Aug 45
24 Aug 48	25 Aug 49	26 Aug 48	27 Aug 50	28 Aug 48	29 Aug 52	30 Aug 50
31 Aug 49	1 Sep 39	2 Sep 34	3 Sep 42	4 Sep 30	5 Sep 24	6 Sep 27

September

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
31 Aug 49	1 Sep 39	2 Sep 34	3 Sep 42	4 Sep 30	5 Sep 24	6 Sep 27
7 Sep 33	8 Sep 35	9 Sep 33	10 Sep 35	11 Sep 32	12 Sep 30	13 Sep 33
14 Sep 34	15 Sep 35	16 Sep 29	17 Sep 38	18 Sep 24	19 Sep 24	20 Sep 26
21 Sep 20	22 Sep 21	23 Sep 21	24 Sep 21	25 Sep 23	26 Sep 25	27 Sep 19
28 Sep 17	29 Sep 18	30 Sep 18	1 Oct 22	2 Oct 44	3 Oct 48	4 Oct 58

October

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
28 Sep 17	29 Sep 18	30 Sep 18	1 Oct 22	2 Oct 44	3 Oct 48	4 Oct 58
5 Oct 53	6 Oct 46	7 Oct 49	8 Oct 59	9 Oct 44	10 Oct 51	11 Oct 62
12 Oct 66	13 Oct 46	14 Oct 54	15 Oct 52	16 Oct 59	17 Oct 48	18 Oct 53
19 Oct 34	20 Oct 28	21 Oct 25	22 Oct 25	23 Oct 28	24 Oct 31	25 Oct 37
26 Oct 32	27 Oct 39	28 Oct 41	29 Oct 34	30 Oct 49	31 Oct 41	1 Nov 30

November

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Oct 32	27 Oct 39	28 Oct 41	29 Oct 34	30 Oct 49	31 Oct 41	1 Nov 30
2 Nov 42	3 Nov 39	4 Nov 39	5 Nov 50	6 Nov 45	7 Nov 41	8 Nov 55
9 Nov 49	10 Nov 32	11 Nov 39	12 Nov 47	13 Nov 50	14 Nov 52	15 Nov 52
16 Nov 41	17 Nov 55	18 Nov 42	19 Nov 23	20 Nov 37	21 Nov 48	22 Nov 35
23 Nov 44	24 Nov 55	25 Nov 49	26 Nov 53	27 Nov -	28 Nov -	29 Nov -
30 Nov -	1 Dec -	2 Dec -	3 Dec -	4 Dec -	5 Dec -	6 Dec -

Health Advice For People Living In
Hiroshima

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 PurifierTurn On
Car FilterMust
N95 MaskMust
Stay IndoorMust

Must turn on the air purifier to enjoy fresh air.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Hiroshima

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

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

Kaneyama, Japan

Suginami City, Japan

Tamana, Japan

Uwajima, Japan

Naha, Japan

Takaharu, Japan

Wakayama, Japan

Nobeoka, Japan

Imabari, Japan

10.

Nishihara, Japan

Moderate

6xabove Standard

Last Updated: 27 Nov 2025, 10:37 PM

AQI City Rankings

Air Quality Solutions For Hiroshima
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 Hiroshima

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 Hiroshima

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 Hiroshima

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 Hiroshima

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.

Hiroshima'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

Get it onApp Store

Get it onGoogle Play

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 Hiroshima

Frequently Asked Questions About Air Quality

What is the current AQI level in Hiroshima?

The current real-time AQI level in Hiroshima is 53 (Moderate). This was last updated 2025-11-28 07:35:46 AM (Local Time).

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

The best AQI level was 52 (Moderate) at 6:05 AM, Nov 28, 2025 (Local Time) during the last 24 hours.

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

The worst AQI level was 71 (Moderate) at 4:00 PM (Local Time) during the last 24 hours.

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

The AQI levels in Hiroshima have been fluctuating throughout the last 24 hours. The levels have increased by highest 71 at 4:00 PM (Local Time), lowest 52 at 6:05 AM, Nov 28, 2025 (Local Time).

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

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