Dongfang, 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
Dongfang, Basuo, Hainan, China

2021

2022

2023

2024

2025

AQI

Days

Days	2025	2024	2023	2022	2021
Jul. 1	32	32		27	31
Jul. 2	29	32		30	31
Jul. 3		33		21	35
Jul. 4		30			67
Jul. 5		32			52
Jul. 6		32	13	28	32
Jul. 7		33	17	20	29
Jul. 8		33	17	21	40
Jul. 9		33	13	18	20
Jul. 10		31			17
Jul. 11		33			21
Jul. 12		28			21
Jul. 13		32			25
Jul. 14		29		12	24
Jul. 15		40		15	16
Jul. 16		32	25	21	20
Jul. 17		35		22	18
Jul. 18		30		25	26
Jul. 19		30		21	40
Jul. 20		29		17	28
Jul. 21		31		16	16
Jul. 22		28			18
Jul. 23		30		16	18
Jul. 24		29		17	15
Jul. 25		29			32
Jul. 26		28			21
Jul. 27		29			25
Jul. 28		29			30
Jul. 29		29			32
Jul. 30		27			30
Jul. 31		27			30

AQI Trends: Highest and Lowest

Highest AQI recorded on

4th Jul 2021

67AQI

Lowest AQI recorded on

14th Jul 2022

12AQI

Same Day Analysis (2nd July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 29 of Good air quality, showing improvement over 2024, 2022 and 2021 on the same day.

Day & Night AQI Trend: 3rd Jul - 4th Jul 2025
Dongfang, Basuo, Hainan, China

AQI

Day

Night

6 AM3rd Jul 2025

7 PM

5 AM4th Jul 2025

Day time

Avg. Highest Time

6AM3rd Jul

31AQI

Avg. Lowest Time

9AM3rd Jul

16AQI

Night time

Avg. Highest Time

1AM4th Jul

28AQI

Avg. Lowest Time

9PM3rd Jul

23AQI

In the last 24 hours,

Dongfang's AQI reached its highest point of 31 at 6 AM during the Day, while the lowest point, 16, was recorded at 9 AM during the Day between 3rd Jul and 4th Jul 2025.

Day & Night AQI Trend : Jun - Jul 2025
Dongfang, Basuo, Hainan, China

JunJul

04th - 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 - 04th04th

Day

Night

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

39AQI

2 hours / Day

60 hours / Month

Avg. Lowest Time

9 AM - 11 AM

26AQI

3 hours / Day

90 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 6 AM to 7 AM (Avg. 39), while the lowest AQI was between 9 AM to 11 AM (Avg. 26).

Night time

Avg. Highest Time

1 AM - 5 AM

39AQI

5 hours / Day

150 hours / Month

Avg. Lowest Time

12 AM

35AQI

1 hours / Day

30 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 1 AM to 5 AM (Avg. 39), while the lowest AQI was between 12 AM to 12 AM (Avg. 35).

2025 Days Vs Air Quality
Dongfang, Basuo, Hainan, China

2025

45%

52%

Total number of days with different AQI categories in last 185 days in 2025 (180 days remaining)

Good

83 Days

Moderate

96 Days

Poor

4 Days

Unhealthy

0 Days

Severe

0 Days

Hazardous

0 Days

Under WHO’s Safe Air Quality Limits: 45%

Health Risk Level:

Significant

In 2025, 45% of 185 days were within WHO’s safe air quality limits, and 55% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.

Annual Air Quality Insights
Dongfang, 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.

83AQI

57AQI

55AQI

60AQI

40AQI

34AQI

31AQI

No. of days

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

202555AQI

Highest AQI recorded in

January

83AQI

Lowest AQI recorded in

July

31AQI

202447AQI

206

102

Highest AQI recorded in

December

78AQI

Lowest AQI recorded in

August

31AQI

202354AQI

Highest AQI recorded in

March

82AQI

Lowest AQI recorded in

July

17AQI

202244AQI

160

Highest AQI recorded in

January

65AQI

Lowest AQI recorded in

August

13AQI

202148AQI

223

125

Highest AQI recorded in

January

92AQI

Lowest AQI recorded in

September

23AQI

202042AQI

172

Highest AQI recorded in

December

81AQI

Lowest AQI recorded in

August

20AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded

2025(Avg.)

55AQI

Least Polluted Year Recorded

2020(Avg.)

42AQI

Dongfang's annual 2025 AQI (55) shows an average percentage change of 17.06% (worsened AQI) compared to previous years: 2020 (42), 2021 (48), 2022 (44), 2023 (54), 2024 (47).


6 AM	31
7 AM	31
8 AM	22
9 AM	16
10 AM	19
11 AM	19
12 PM	19
1 PM	19
2 PM	19
3 PM	19
4 PM	19
5 PM	21
6 PM	20
7 PM	20
8 PM	24
9 PM	23
10 PM	24
11 PM	24
12 AM	25
1 AM	28
2 AM	28
3 AM	28
4 AM	25
5 AM	26

Dongfang, Basuo, Hainan, China Historical Air Quality Analysis

July Air Quality AnalysisDongfang, Basuo, Hainan, China

Day & Night AQI Trend: 3rd Jul - 4th Jul 2025Dongfang, Basuo, Hainan, China

Day & Night AQI Trend : Jun - Jul 2025Dongfang, Basuo, Hainan, China

2025 Days Vs Air Quality Dongfang, Basuo, Hainan, China

Annual Air Quality InsightsDongfang, Basuo, Hainan, China

AQI levels in 2025

No. of days

July Air Quality Analysis
Dongfang, Basuo, Hainan, China

Day & Night AQI Trend: 3rd Jul - 4th Jul 2025
Dongfang, Basuo, Hainan, China

Day & Night AQI Trend : Jun - Jul 2025
Dongfang, Basuo, Hainan, China

2025 Days Vs Air Quality
Dongfang, Basuo, Hainan, China

Annual Air Quality Insights
Dongfang, Basuo, Hainan, China