Changjiang Pawn Bay, Basuo, Hainan, China 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
Changjiang Pawn Bay, Basuo, Hainan, China

2021

2022

2023

2024

2025

AQI

Days

Days	2025	2024	2023	2022	2021
Jul. 1	30	32		37	39
Jul. 2	30	31		42	33
Jul. 3		33		22	41
Jul. 4		30			44
Jul. 5		32			45
Jul. 6		32	56	29	44
Jul. 7		33	35	28	15
Jul. 8		33	36	31	22
Jul. 9		33	66	34	20
Jul. 10		31			17
Jul. 11		33			15
Jul. 12		28		13	16
Jul. 13		32		17	14
Jul. 14		29		21	25
Jul. 15		40		19	16
Jul. 16		32	38	31	19
Jul. 17		35		40	17
Jul. 18		30		37	23
Jul. 19		30		37	36
Jul. 20		29		27	28
Jul. 21		31		18	17
Jul. 22		28		17	17
Jul. 23		30		29	21
Jul. 24		29		38	16
Jul. 25		29			16
Jul. 26		28			22
Jul. 27		29			23
Jul. 28		29			23
Jul. 29		29			29
Jul. 30		27			34
Jul. 31		27			38

AQI Trends: Highest and Lowest

Highest AQI recorded on

9th Jul 2023

66AQI

Lowest AQI recorded on

12th Jul 2022

13AQI

Same Day Analysis (2nd July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 30 of Good air quality, showing improvement over 2024, 2022 and 2021 on the same day.

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Changjiang Pawn Bay, Basuo, Hainan, China

AQI

Day

Night

6 AM2nd Jul 2025

7 PM

5 AM3rd Jul 2025

Day time

Avg. Highest Time

6AM2nd Jul

33AQI

Avg. Lowest Time

9AM2nd Jul

22AQI

Night time

Avg. Highest Time

4AM3rd Jul

36AQI

Avg. Lowest Time

12AM3rd Jul

23AQI

In the last 24 hours,

Changjiang Pawn Bay's AQI reached its highest point of 36 at 4 AM during the Night, while the lowest point, 22, was recorded at 9 AM during the Day between 2nd Jul and 3rd Jul 2025.

Day & Night AQI Trend : Jun - Jul 2025
Changjiang Pawn Bay, Basuo, Hainan, China

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

30°C29/31°C

29°C27/31°C

29°C27/32°C

30°C27/33°C

30°C28/32°C

29°C27/32°C

29°C27/31°C

28°C27/31°C

27°C26/29°C

27°C26/28°C

29°C27/31°C

29°C27/32°C

29°C27/31°C

29°C26/32°C

28°C26/31°C

28°C26/30°C

28°C26/31°C

28°C26/30°C

29°C27/31°C

29°C27/30°C

28°C27/31°C

28°C26/30°C

6 AM

12 PM

7 PM

12 AM

5 AM

0°C0/0°C

Day time

Avg. Highest Time

6 AM - 7 AM

44AQI

2 hours / Day

60 hours / Month

Avg. Lowest Time

9 AM - 6 PM

34AQI

10 hours / Day

300 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 6 AM to 7 AM (Avg. 44), while the lowest AQI was between 9 AM to 6 PM (Avg. 34).

Night time

Avg. Highest Time

1 AM - 5 AM

44AQI

5 hours / Day

150 hours / Month

Avg. Lowest Time

8 PM - 11 PM

40AQI

4 hours / Day

120 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 1 AM to 5 AM (Avg. 44), while the lowest AQI was between 8 PM to 11 PM (Avg. 40).

2025 Days Vs Air Quality
Changjiang Pawn Bay, Basuo, Hainan, China

2025

30%

63%

116

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

Good

55 Days

Moderate

116 Days

Poor

12 Days

Unhealthy

0 Days

Severe

0 Days

Hazardous

0 Days

Under WHO’s Safe Air Quality Limits: 30%

Health Risk Level:

High

In 2025, 30% of 184 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.

Annual Air Quality Insights
Changjiang Pawn Bay, Basuo, Hainan, China

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.

93AQI

62AQI

65AQI

68AQI

49AQI

40AQI

30AQI

No. of days

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

202562AQI

116

Highest AQI recorded in

January

93AQI

Lowest AQI recorded in

July

30AQI

202456AQI

168

117

Highest AQI recorded in

April

109AQI

Lowest AQI recorded in

August

31AQI

202355AQI

Highest AQI recorded in

March

81AQI

Lowest AQI recorded in

September

28AQI

202254AQI

119

133

Highest AQI recorded in

December

74AQI

Lowest AQI recorded in

August

25AQI

202157AQI

159

149

Highest AQI recorded in

January

96AQI

Lowest AQI recorded in

July

25AQI

202051AQI

146

Highest AQI recorded in

December

92AQI

Lowest AQI recorded in

August

29AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded

2025(Avg.)

62AQI

Least Polluted Year Recorded

2020(Avg.)

51AQI

Changjiang Pawn Bay's annual 2025 AQI (62) shows an average percentage change of 14.4% (worsened AQI) compared to previous years: 2020 (51), 2021 (57), 2022 (54), 2023 (55), 2024 (56).


6 AM	33
7 AM	32
8 AM	24
9 AM	22
10 AM	27
11 AM	27
12 PM	27
1 PM	29
2 PM	27
3 PM	30
4 PM	29
5 PM	33
6 PM	24
7 PM	23
8 PM	23
9 PM	23
10 PM	23
11 PM	23
12 AM	23
1 AM	30
2 AM	32
3 AM	35
4 AM	36
5 AM	36

Changjiang Pawn Bay, Basuo, Hainan, China Historical Air Quality Analysis

July Air Quality AnalysisChangjiang Pawn Bay, Basuo, Hainan, China

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025Changjiang Pawn Bay, Basuo, Hainan, China

Day & Night AQI Trend : Jun - Jul 2025Changjiang Pawn Bay, Basuo, Hainan, China

2025 Days Vs Air Quality Changjiang Pawn Bay, Basuo, Hainan, China

Annual Air Quality InsightsChangjiang Pawn Bay, Basuo, Hainan, China

AQI levels in 2025

No. of days

July Air Quality Analysis
Changjiang Pawn Bay, Basuo, Hainan, China

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Changjiang Pawn Bay, Basuo, Hainan, China

Day & Night AQI Trend : Jun - Jul 2025
Changjiang Pawn Bay, Basuo, Hainan, China

2025 Days Vs Air Quality
Changjiang Pawn Bay, Basuo, Hainan, China

Annual Air Quality Insights
Changjiang Pawn Bay, Basuo, Hainan, China