AQI PM2.5 PM10 CO SO2 NO2 O3

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Niihama Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-05-24 08:24:36 AM (Local Time)

Live AQI

Air Quality is

Good

pm10 : 20 µg/m³

PM2.5 : 9 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

17 °C

Last Updated: 2025-05-24 08:24:36 AM (Local Time)

Map

Niihama

Major Air Pollutants
Niihama

Particulate Matter(PM2.5)

9µg/m³

Particulate Matter(PM10)

20µg/m³

Carbon Monoxide(CO)

110ppb

Sulfur Dioxide(SO2)

2ppb

Nitrogen Dioxide(NO2)

6ppb

Ozone(O3)

30ppb

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AQI Graph

Historical Air Quality Data
Niihama

24 Hours

AQI

Niihama

Want air quality data?

AQI Trends - Annual Air Quality Changes
Niihama, Ehime, Japan

AQI

Year

AQI

Annual AQI Trends

2020

46AQI

2021

45AQI

-2%

Fall

2022

47AQI

Rise

2023

49AQI

Rise

2024

45AQI

-8%

Fall

2025

48AQI

Rise

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

Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedAugust, 202066AQI

Least PollutedDecember, 202432AQI

* This data analysis is from year 2020 - 2025

Niihama's Locations
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

Fungus

Good

Kubotacho

Good

Japan's Metro Cities
Air Quality Index

Aomori

Higashi Hiroshima

Higashi Osaka

Kyoto

Saitama

Sendai

Tokyo

Yokohama

Air Quality Calendar 2025
Niihama

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 30	2 Jan 38	3 Jan 33	4 Jan 32
5 Jan 31	6 Jan 46	7 Jan 32	8 Jan 34	9 Jan 29	10 Jan 28	11 Jan 29
12 Jan 29	13 Jan 40	14 Jan 47	15 Jan 44	16 Jan 37	17 Jan 36	18 Jan 32
19 Jan 52	20 Jan 41	21 Jan 53	22 Jan 59	23 Jan 69	24 Jan 89	25 Jan 46
26 Jan 48	27 Jan 40	28 Jan 42	29 Jan 35	30 Jan 45	31 Jan 59	1 Feb 68

February

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Jan 48	27 Jan 40	28 Jan 42	29 Jan 35	30 Jan 45	31 Jan 59	1 Feb 68
2 Feb 46	3 Feb 53	4 Feb 39	5 Feb 40	6 Feb 32	7 Feb 39	8 Feb 31
9 Feb 32	10 Feb 31	11 Feb 34	12 Feb 47	13 Feb 33	14 Feb 46	15 Feb 32
16 Feb 54	17 Feb 47	18 Feb 42	19 Feb 41	20 Feb 36	21 Feb 37	22 Feb 41
23 Feb 37	24 Feb 39	25 Feb 38	26 Feb 40	27 Feb 72	28 Feb 85	1 Mar 100

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 37	24 Feb 39	25 Feb 38	26 Feb 40	27 Feb 72	28 Feb 85	1 Mar 100
2 Mar 120	3 Mar 60	4 Mar 62	5 Mar 43	6 Mar 41	7 Mar 38	8 Mar 43
9 Mar 43	10 Mar 45	11 Mar 54	12 Mar 55	13 Mar 62	14 Mar 56	15 Mar 41
16 Mar 29	17 Mar 45	18 Mar 30	19 Mar 43	20 Mar 45	21 Mar 60	22 Mar 62
23 Mar 69	24 Mar 67	25 Mar 83	26 Mar 76	27 Mar 93	28 Mar 60	29 Mar 53
30 Mar 43	31 Mar 43	1 Apr 49	2 Apr 43	3 Apr 30	4 Apr 36	5 Apr 44

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 43	31 Mar 43	1 Apr 49	2 Apr 43	3 Apr 30	4 Apr 36	5 Apr 44
6 Apr 47	7 Apr 47	8 Apr 43	9 Apr 61	10 Apr 62	11 Apr 60	12 Apr 65
13 Apr 46	14 Apr 49	15 Apr 31	16 Apr 48	17 Apr 52	18 Apr 63	19 Apr 60
20 Apr 54	21 Apr 47	22 Apr 58	23 Apr 44	24 Apr 42	25 Apr 59	26 Apr 60
27 Apr 58	28 Apr 50	29 Apr 48	30 Apr 58	1 May 55	2 May 41	3 May 50

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 58	28 Apr 50	29 Apr 48	30 Apr 58	1 May 55	2 May 41	3 May 50
4 May 39	5 May 44	6 May 38	7 May 34	8 May 38	9 May 40	10 May 37
11 May 39	12 May 51	13 May 55	14 May 61	15 May 59	16 May 64	17 May 50
18 May 52	19 May 60	20 May 65	21 May 71	22 May 48	23 May -	24 May -
25 May -	26 May -	27 May -	28 May -	29 May -	30 May -	31 May -

Health Advice For People Living In
Niihama

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 Off
Car FilterAdvisable
N95 MaskAdvisable
Stay IndoorAdvisable

As per the current AQI, turn off the air purifier.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Niihama

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

Low Chances of Asthma

Asthma

Risk of Asthma symptoms is Low when AQI is Good (0-50)

Mild symptoms such as slight wheezing, occasional cough, and minor shortness of breath

Do's :

Keep track of air quality to plan outdoor activities safely.
Drink water to keep airways moist and reduce irritation.
Include non-allergenic fruits and vegetables that support overall lung health, like apples, pears, and spinach.

Don'ts :

Skip medications that is prescribed by your doctor.
Engage in outdoor activities in early morning during high pollen hours.

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

Kose, Japan

Iwakuni, Japan

Yuasa, Japan

Narutocho Mitsuishi, Japan

Moderate

4xabove Standard

Shimotsucho Kominami, Japan

Odacho Oda, Japan

Gifu, Japan

Wakayama, Japan

Funato, Japan

10.

Maizuru, Japan

Moderate

4xabove Standard

Last Updated: 24 May 2025, 03:32 AM

AQI City Rankings

Air Quality Solutions For Niihama
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 Niihama

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 Niihama

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 Niihama

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 Niihama

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.

Niihama'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 Niihama

Frequently Asked Questions About Air Quality

What is the current AQI level in Niihama?

The current real-time AQI level in Niihama is 48 (Good) due to recent rainfall by 6.66mm/hr. This was last updated 2025-05-24 08:24:36 AM (Local Time).

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

The best AQI level was 38 (Good) at 12:39 PM, May 23, 2025 (Local Time) during the last 24 hours.

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

The worst AQI level was 59 (Moderate) at 7:09 PM, May 23, 2025 (Local Time) during the last 24 hours.

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

The AQI levels in Niihama have been fluctuating throughout the last 24 hours. The levels have increased by highest 59 at 7:09 PM, May 23, 2025 (Local Time), lowest 38 at 12:39 PM, May 23, 2025 (Local Time).

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

The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.