Nishihabumachi, Masaki, Ehime, Japan Historical Air Quality Analysis

Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

July Air Quality Analysis
Nishihabumachi, Masaki, Ehime, Japan

2021

2022

2023

2024

2025

AQI

Days

Days	2025	2024	2023	2022	2021
Jul. 1	56	23	32	32	34
Jul. 2	62	23	36	57	44
Jul. 3		52	46	41	50
Jul. 4		42	51	25	57
Jul. 5		44	52	31	43
Jul. 6		50	58	48	52
Jul. 7		40	73	57	39
Jul. 8		38	66	56	36
Jul. 9		38	57	38	30
Jul. 10		35	63	66	27
Jul. 11		28	54	57	35
Jul. 12		49	49		35
Jul. 13		48	48		39
Jul. 14		49	60	47	42
Jul. 15		26	46	42	40
Jul. 16		32	32	28	33
Jul. 17		48	40	46	25
Jul. 18		45	36	59	16
Jul. 19		45	38	33	33
Jul. 20		49	46	42	44
Jul. 21		72	52		47
Jul. 22		61	58	40	43
Jul. 23		30	61	33	43
Jul. 24		28	49	50	48
Jul. 25		34	43		44
Jul. 26		28	42		41
Jul. 27		23	65		38
Jul. 28		40	63		58
Jul. 29		46	60		46
Jul. 30		32	44		47
Jul. 31		34	52		43

AQI Trends: Highest and Lowest

Highest AQI recorded on

7th Jul 2023

73AQI

Lowest AQI recorded on

18th Jul 2021

16AQI

Same Day Analysis (2nd July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 62 of Moderate air quality on the same day.

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Nishihabumachi, Masaki, Ehime, Japan

AQI

Day

Night

4 AM2nd Jul 2025

7 PM

3 AM3rd Jul 2025

Day time

Avg. Highest Time

7PM2nd Jul

97AQI

Avg. Lowest Time

8AM2nd Jul

55AQI

Night time

Avg. Highest Time

8PM2nd Jul

106AQI

Avg. Lowest Time

4AM2nd Jul

54AQI

In the last 24 hours,

Nishihabumachi's AQI reached its highest point of 106 at 8 PM during the Night, while the lowest point, 54, was recorded at 4 AM during the Night between 2nd Jul and 3rd Jul 2025.

Day & Night AQI Trend : Jun - Jul 2025
Nishihabumachi, Masaki, Ehime, Japan

JunJul

03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd

Day

Night

18°C16/19°C

19°C15/24°C

19°C14/24°C

20°C15/24°C

20°C18/23°C

20°C18/22°C

19°C18/19°C

21°C20/22°C

19°C18/21°C

21°C18/24°C

22°C20/23°C

22°C21/25°C

24°C21/28°C

23°C20/27°C

23°C21/26°C

23°C20/27°C

24°C21/27°C

24°C20/28°C

24°C22/28°C

22°C21/24°C

22°C22/23°C

24°C22/26°C

23°C21/25°C

24°C21/27°C

24°C20/27°C

25°C21/28°C

25°C22/28°C

26°C22/29°C

4 AM

11 AM

7 PM

11 PM

3 AM

0°C0/0°C

Day time

Avg. Highest Time

4 AM - 8 AM

50AQI

5 hours / Day

150 hours / Month

Avg. Lowest Time

9 AM - 7 PM

49AQI

11 hours / Day

330 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 4 AM to 8 AM (Avg. 50), while the lowest AQI was between 9 AM to 7 PM (Avg. 49).

Night time

Avg. Highest Time

12 AM - 11 PM

51AQI

8 hours / Day

240 hours / Month

Avg. Lowest Time

12 AM - 11 PM

51AQI

8 hours / Day

240 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 51), while the lowest AQI was between 12 AM to 11 PM (Avg. 51).

2025 Days Vs Air Quality
Nishihabumachi, Masaki, Ehime, Japan

2025

67%

123

33%

Total number of days with different AQI categories in last 184 days in 2025 (181 days remaining)

Good

123 Days

Moderate

60 Days

Poor

0 Days

Unhealthy

0 Days

Severe

0 Days

Hazardous

0 Days

Under WHO’s Safe Air Quality Limits: 67%

Health Risk Level:

Moderate

In 2025, 67% of 184 days were within WHO’s safe air quality limits, and 33% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.

Annual Air Quality Insights
Nishihabumachi, Masaki, Ehime, Japan

AQI levels in 2025

AQI

PM2.5

PM10

SO2

NO2

Sun.Mon.Tue.Wed.Thu.Fri.Sat.

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

41AQI

52AQI

47AQI

46AQI

49AQI

59AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202546AQI

123

Highest AQI recorded in

July

59AQI

Lowest AQI recorded in

February

41AQI

202443AQI

267

Highest AQI recorded in

April

60AQI

Lowest AQI recorded in

December

32AQI

202349AQI

202

161

Highest AQI recorded in

April

58AQI

Lowest AQI recorded in

August

44AQI

202245AQI

212

106

Highest AQI recorded in

August

60AQI

Lowest AQI recorded in

January

38AQI

202141AQI

256

Highest AQI recorded in

June

52AQI

Lowest AQI recorded in

August

33AQI

202041AQI

188

Highest AQI recorded in

August

55AQI

Lowest AQI recorded in

September

34AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded

2023(Avg.)

49AQI

Least Polluted Year Recorded

2020(Avg.)

41AQI

Nishihabumachi's annual 2025 AQI (46) shows an average percentage change of 4.9% (worsened AQI) compared to previous years: 2020 (41), 2021 (41), 2022 (45), 2023 (49), 2024 (43).


4 AM	54
5 AM	55
6 AM	55
7 AM	55
8 AM	55
9 AM	81
10 AM	96
11 AM	96
12 PM	95
1 PM	89
2 PM	86
3 PM	79
4 PM	74
5 PM	79
6 PM	83
7 PM	97
8 PM	106
9 PM	106
10 PM	106
11 PM	106
12 AM	106
1 AM	106
2 AM	68
3 AM	55

Nishihabumachi, Masaki, Ehime, Japan Historical Air Quality Analysis

July Air Quality AnalysisNishihabumachi, Masaki, Ehime, Japan

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025Nishihabumachi, Masaki, Ehime, Japan

Day & Night AQI Trend : Jun - Jul 2025Nishihabumachi, Masaki, Ehime, Japan

2025 Days Vs Air Quality Nishihabumachi, Masaki, Ehime, Japan

Annual Air Quality InsightsNishihabumachi, Masaki, Ehime, Japan

AQI levels in 2025

No. of days

July Air Quality Analysis
Nishihabumachi, Masaki, Ehime, Japan

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Nishihabumachi, Masaki, Ehime, Japan

Day & Night AQI Trend : Jun - Jul 2025
Nishihabumachi, Masaki, Ehime, Japan

2025 Days Vs Air Quality
Nishihabumachi, Masaki, Ehime, Japan

Annual Air Quality Insights
Nishihabumachi, Masaki, Ehime, Japan