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Shimadachi Air Quality Index (AQI) | Air Pollution

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

Last Updated: 21 Aug 2025, 12:09pm (Local Time)

Live AQI

51(AQI-US)

Air Quality is

Moderate

pm10 : 21 µg/m³

PM2.5 : 9 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

30 °C

Last Updated: 21 Aug 2025, 12:09pm (Local Time)

Map

Shimadachi

Major Air Pollutants
Shimadachi

Particulate Matter(PM2.5)

9µg/m³

Particulate Matter(PM10)

21µg/m³

Carbon Monoxide(CO)

140ppb

Sulfur Dioxide(SO2)

2ppb

Nitrogen Dioxide(NO2)

6ppb

Ozone(O3)

35ppb

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AQI Graph

Historical Air Quality Data
Shimadachi

24 Hours

AQI

Shimadachi

AQI

20-08-2025Time21-08-2025

Time	Shimadachi
01 PM	55
02 PM	52
03 PM	59
04 PM	74
05 PM	51
06 PM	52
07 PM	54
08 PM	56
09 PM	53
10 PM	52
11 PM	54
12 AM	51
01 AM	49
02 AM	43
03 AM	44
04 AM	47
05 AM	48
06 AM	46
07 AM	47
08 AM	46
09 AM	52
10 AM	51
11 AM	51
12 PM	51

Min.at 2:09 AM on 21st Aug

Max.at 4:09 PM on 20th Aug

Want air quality data?

AQI Trends - Annual Air Quality Changes
Shimadachi, Minamiozuma, Nagano, Japan

AQI

Year

AQI

AQI	AQI
Mar 2020	30
Apr 2020	33
May 2020	28
Jun 2020	31
Jul 2020	22
Aug 2020	47
Sep 2020	22
Oct 2020	29
Nov 2020	34
Dec 2020	31
Jan 2021	29
Feb 2021	36
Mar 2021	33
Apr 2021	35
May 2021	36
Jun 2021	41
Jul 2021	33
Aug 2021	27
Sep 2021	30
Oct 2021	30
Nov 2021	35
Dec 2021	35
Jan 2022	34
Feb 2022	39
Mar 2022	45
Apr 2022	46
May 2022	45
Jun 2022	38
Jul 2022	34
Aug 2022	20
Sep 2022	29
Oct 2022	32
Nov 2022	39
Dec 2022	34
Jan 2023	34
Feb 2023	37
Mar 2023	43
Apr 2023	44
May 2023	38
Jun 2023	34
Jul 2023	39
Aug 2023	28
Sep 2023	27
Oct 2023	26
Nov 2023	36
Dec 2023	37
Jan 2024	32
Feb 2024	34
Mar 2024	38
Apr 2024	46
May 2024	36
Jun 2024	41
Jul 2024	27
Aug 2024	28
Sep 2024	30
Oct 2024	27
Nov 2024	32
Dec 2024	30
Jan 2025	35
Feb 2025	36
Mar 2025	43
Apr 2025	37
May 2025	38
Jun 2025	40
Jul 2025	45
Aug 2025	44

Annual AQI Trends

2020

31AQI

2021

33AQI

Rise

2022

38AQI

15%

Rise

2023

35AQI

-8%

Fall

2024

34AQI

-3%

Fall

2025

40AQI

18%

Rise

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

Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedAugust, 202047AQI

Least PollutedAugust, 202220AQI

* This data analysis is from year 2020 - 2025

Japan's Metro Cities
Air Quality Index

Aomori

Higashi Hiroshima

Higashi Osaka

Kyoto

Saitama

Sendai

Tokyo

Yokohama

Air Quality Calendar 2025
Shimadachi

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 34	2 Jan 32	3 Jan 29	4 Jan 31
5 Jan 32	6 Jan 35	7 Jan 33	8 Jan 29	9 Jan 29	10 Jan 27	11 Jan 31
12 Jan 34	13 Jan 35	14 Jan 34	15 Jan 34	16 Jan 31	17 Jan 32	18 Jan 37
19 Jan 35	20 Jan 42	21 Jan 44	22 Jan 48	23 Jan 53	24 Jan 51	25 Jan 39
26 Jan 37	27 Jan 33	28 Jan 32	29 Jan 35	30 Jan 32	31 Jan 37	1 Feb 44

February

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

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 33	24 Feb 33	25 Feb 36	26 Feb 41	27 Feb 47	28 Feb 46	1 Mar 52
2 Mar 44	3 Mar 40	4 Mar 36	5 Mar 38	6 Mar 35	7 Mar 36	8 Mar 38
9 Mar 35	10 Mar 38	11 Mar 33	12 Mar 31	13 Mar 43	14 Mar 42	15 Mar 44
16 Mar 32	17 Mar 30	18 Mar 30	19 Mar 24	20 Mar 30	21 Mar 44	22 Mar 49
23 Mar 59	24 Mar 60	25 Mar 76	26 Mar 86	27 Mar 70	28 Mar 43	29 Mar 39
30 Mar 37	31 Mar 34	1 Apr 36	2 Apr 26	3 Apr 24	4 Apr 24	5 Apr 31

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 37	31 Mar 34	1 Apr 36	2 Apr 26	3 Apr 24	4 Apr 24	5 Apr 31
6 Apr 24	7 Apr 34	8 Apr 40	9 Apr 28	10 Apr 42	11 Apr 37	12 Apr 46
13 Apr 25	14 Apr 29	15 Apr 21	16 Apr 26	17 Apr 47	18 Apr 51	19 Apr 68
20 Apr 53	21 Apr 43	22 Apr 47	23 Apr 27	24 Apr 27	25 Apr 35	26 Apr 43
27 Apr 45	28 Apr 45	29 Apr 38	30 Apr 54	1 May 45	2 May 34	3 May 36

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 45	28 Apr 45	29 Apr 38	30 Apr 54	1 May 45	2 May 34	3 May 36
4 May 34	5 May 40	6 May 28	7 May 28	8 May 31	9 May 30	10 May 24
11 May 23	12 May 26	13 May 37	14 May 45	15 May 46	16 May 51	17 May 33
18 May 43	19 May 41	20 May 61	21 May 62	22 May 56	23 May 55	24 May 50
25 May 29	26 May 31	27 May 33	28 May 30	29 May 36	30 May 25	31 May 21

June

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
1 Jun 20	2 Jun 32	3 Jun 24	4 Jun 30	5 Jun 34	6 Jun 42	7 Jun 45
8 Jun 56	9 Jun 57	10 Jun 35	11 Jun 33	12 Jun 42	13 Jun 48	14 Jun 36
15 Jun 28	16 Jun 30	17 Jun 35	18 Jun 45	19 Jun 50	20 Jun 54	21 Jun 51
22 Jun 53	23 Jun 37	24 Jun 37	25 Jun 37	26 Jun 35	27 Jun 41	28 Jun 42
29 Jun 47	30 Jun 51	1 Jul 55	2 Jul 46	3 Jul 48	4 Jul 51	5 Jul 57

July

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Jun 47	30 Jun 51	1 Jul 55	2 Jul 46	3 Jul 48	4 Jul 51	5 Jul 57
6 Jul 54	7 Jul 56	8 Jul 59	9 Jul 59	10 Jul 56	11 Jul 46	12 Jul 46
13 Jul 46	14 Jul 42	15 Jul 35	16 Jul 43	17 Jul 33	18 Jul 35	19 Jul 34
20 Jul 35	21 Jul 38	22 Jul 40	23 Jul 42	24 Jul 41	25 Jul 39	26 Jul 38
27 Jul 37	28 Jul 40	29 Jul 49	30 Jul 47	31 Jul 41	1 Aug 43	2 Aug 46

August

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Jul 37	28 Jul 40	29 Jul 49	30 Jul 47	31 Jul 41	1 Aug 43	2 Aug 46
3 Aug 49	4 Aug 57	5 Aug 51	6 Aug 49	7 Aug 39	8 Aug 37	9 Aug 40
10 Aug 34	11 Aug 35	12 Aug 37	13 Aug 38	14 Aug 45	15 Aug 49	16 Aug 48
17 Aug 45	18 Aug 47	19 Aug 48	20 Aug -	21 Aug -	22 Aug -	23 Aug -
24 Aug -	25 Aug -	26 Aug -	27 Aug -	28 Aug -	29 Aug -	30 Aug -
31 Aug -	1 Sep -	2 Sep -	3 Sep -	4 Sep -	5 Sep -	6 Sep -

Health Advice For People Living In
Shimadachi

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

Shimadachi

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.

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Analyze the real-time most air polluted cities in the country.

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World's Most PollutedCity Rankings (2024)

World's Most PollutedCountry Rankings(2024)

RankCityAQIAQI Status

Standard Value

Fukui, Japan

Honcho, Japan

Hashima, Japan

Tokorozawa, Japan

Kuwana, Japan

Tottori, Japan

Inazawa, Japan

Toyama, Japan

Nishio, Japan

10.

Toyooka, Japan

Moderate

4xabove Standard

Last Updated: 21 Aug 2025, 03:21 AM

AQI City Rankings

Air Quality Solutions For Shimadachi
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 Shimadachi

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 Shimadachi

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 Shimadachi

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 Shimadachi

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.

Shimadachi'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 Shimadachi

Frequently Asked Questions About Air Quality

What is the current AQI level in Shimadachi?

The current real-time AQI level in Shimadachi is 51 (Moderate) due to recent rainfall by 0.01mm/hr. This was last updated 21 Aug 2025, 12:09pm (Local Time).

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

The best AQI level was 43 (Good) at 2:09 AM (Local Time) during the last 24 hours.

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

The worst AQI level was 74 (Moderate) at 4:09 PM, Aug 20, 2025 (Local Time) during the last 24 hours.

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

The AQI levels in Shimadachi have been fluctuating throughout the last 24 hours. The levels have increased by highest 74 at 4:09 PM, Aug 20, 2025 (Local Time), lowest 43 at 2:09 AM (Local Time).

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

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