Nada, 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
Nada, Hainan, China

2021

2022

2023

2024

2025

AQI

Days

Days	2025	2024	2023	2022	2021
Jul. 1	29	27	33	35	36
Jul. 2	28	30	19	27	35
Jul. 3		27	18	24	42
Jul. 4		24	30	26	49
Jul. 5		22	28	27	41
Jul. 6		27	29	30	28
Jul. 7		26	22	33	20
Jul. 8		28	23	30	20
Jul. 9		26	27	30	21
Jul. 10		41	27	28	42
Jul. 11		35	24	17	35
Jul. 12		31	29	15	31
Jul. 13		31	31	16	40
Jul. 14		29	43	22	38
Jul. 15		25	41	28	31
Jul. 16		23	39	31	35
Jul. 17		20	51	45	41
Jul. 18		22	48	44	37
Jul. 19		28	39	36	48
Jul. 20		27	26	25	40
Jul. 21		26	21	22	26
Jul. 22		19	26	23	22
Jul. 23		21	29	26	24
Jul. 24		28	27	29	30
Jul. 25		23	26		35
Jul. 26		27	31		54
Jul. 27		33	32		42
Jul. 28		36	34		38
Jul. 29		31	41		45
Jul. 30		28	29		41
Jul. 31		28	20		34

AQI Trends: Highest and Lowest

Highest AQI recorded on

26th Jul 2021

54AQI

Lowest AQI recorded on

12th Jul 2022

15AQI

Same Day Analysis (2nd July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 28 of Good air quality, showing improvement over 2024 and 2021 on the same day.

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Nada, Hainan, China

AQI

Day

Night

6 AM2nd Jul 2025

7 PM

5 AM3rd Jul 2025

Day time

Avg. Highest Time

7AM2nd Jul

30AQI

Avg. Lowest Time

6PM2nd Jul

22AQI

Night time

Avg. Highest Time

3AM3rd Jul

32AQI

Avg. Lowest Time

12AM3rd Jul

24AQI

In the last 24 hours,

Nada's AQI reached its highest point of 32 at 3 AM during the Night, while the lowest point, 22, was recorded at 6 PM during the Day between 2nd Jul and 3rd Jul 2025.

Day & Night AQI Trend : Jun - Jul 2025
Nada, 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

28°C25/33°C

27°C25/31°C

27°C24/31°C

28°C24/34°C

29°C25/34°C

28°C25/32°C

27°C25/30°C

26°C25/28°C

25°C24/27°C

28°C24/34°C

28°C25/32°C

28°C25/34°C

28°C24/34°C

28°C23/34°C

28°C24/33°C

28°C23/33°C

27°C23/33°C

25°C23/27°C

28°C23/33°C

27°C24/33°C

27°C24/32°C

27°C24/31°C

6 AM

12 PM

7 PM

12 AM

5 AM

0°C0/0°C

Day time

Avg. Highest Time

6 AM - 7 AM

41AQI

2 hours / Day

60 hours / Month

Avg. Lowest Time

9 AM - 6 PM

32AQI

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. 41), while the lowest AQI was between 9 AM to 6 PM (Avg. 32).

Night time

Avg. Highest Time

12 AM - 5 AM

41AQI

6 hours / Day

180 hours / Month

Avg. Lowest Time

8 PM - 11 PM

38AQI

4 hours / Day

120 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 12 AM to 5 AM (Avg. 41), while the lowest AQI was between 8 PM to 11 PM (Avg. 38).

2025 Days Vs Air Quality
Nada, Hainan, China

2025

35%

59%

108

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

Good

64 Days

Moderate

108 Days

Poor

11 Days

Unhealthy

0 Days

Severe

0 Days

Hazardous

0 Days

Under WHO’s Safe Air Quality Limits: 35%

Health Risk Level:

High

In 2025, 35% 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
Nada, 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.

85AQI

57AQI

63AQI

71AQI

50AQI

38AQI

29AQI

No. of days

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

202560AQI

108

Highest AQI recorded in

January

85AQI

Lowest AQI recorded in

July

29AQI

202454AQI

183

170

Highest AQI recorded in

December

83AQI

Lowest AQI recorded in

July

27AQI

202353AQI

188

157

Highest AQI recorded in

January

73AQI

Lowest AQI recorded in

July

30AQI

202251AQI

174

137

Highest AQI recorded in

December

77AQI

Lowest AQI recorded in

July

28AQI

202155AQI

178

172

Highest AQI recorded in

January

90AQI

Lowest AQI recorded in

September

35AQI

202053AQI

144

Highest AQI recorded in

December

86AQI

Lowest AQI recorded in

August

35AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded

2025(Avg.)

60AQI

Least Polluted Year Recorded

2022(Avg.)

51AQI

Nada's annual 2025 AQI (60) shows an average percentage change of 13.8% (worsened AQI) compared to previous years: 2020 (53), 2021 (55), 2022 (51), 2023 (53), 2024 (54).


6 AM	29
7 AM	30
8 AM	26
9 AM	28
10 AM	28
11 AM	25
12 PM	26
1 PM	25
2 PM	26
3 PM	24
4 PM	24
5 PM	24
6 PM	22
7 PM	24
8 PM	24
9 PM	24
10 PM	24
11 PM	24
12 AM	24
1 AM	29
2 AM	31
3 AM	32
4 AM	32
5 AM	32

Nada, Hainan, China Historical Air Quality Analysis

July Air Quality AnalysisNada, Hainan, China

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025Nada, Hainan, China

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

2025 Days Vs Air Quality Nada, Hainan, China

Annual Air Quality InsightsNada, Hainan, China

AQI levels in 2025

No. of days

July Air Quality Analysis
Nada, Hainan, China

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Nada, Hainan, China

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

2025 Days Vs Air Quality
Nada, Hainan, China

Annual Air Quality Insights
Nada, Hainan, China