Huangyan, Zhejiang, 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
Huangyan, Zhejiang, China

2021

2022

2023

2024

2025

AQI

Days

Days	2025	2024	2023	2022	2021
Jul. 1	46	54	47	20	48
Jul. 2		47	39	29	82
Jul. 3		46	47	31	62
Jul. 4		49	54	53	52
Jul. 5		49	46	49	35
Jul. 6		46	65	39	28
Jul. 7		47	75	37	53
Jul. 8		48	70	46	60
Jul. 9		51	82	53	58
Jul. 10		59	76	63	64
Jul. 11		66	47	65	65
Jul. 12		74	53	66	48
Jul. 13		59	54	48	49
Jul. 14		50	33	50	28
Jul. 15		43	29	68	28
Jul. 16		18	23	88	26
Jul. 17		49	28	84	28
Jul. 18		56	47	67	39
Jul. 19		50	59	73	40
Jul. 20		27	49	66	37
Jul. 21		41	54	57	37
Jul. 22		20	58	68	36
Jul. 23		36	52	83	36
Jul. 24		36	38	89	36
Jul. 25		40	20		22
Jul. 26		30	40	62	15
Jul. 27		48	27		54
Jul. 28		32	38		66
Jul. 29		28	48		78
Jul. 30		31	35		60
Jul. 31		33	54		60

AQI Trends: Highest and Lowest

Highest AQI recorded on

24th Jul 2022

89AQI

Lowest AQI recorded on

26th Jul 2021

15AQI

Same Day Analysis (1st July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 46 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Huangyan, Zhejiang, China

AQI

Day

Night

4 AM2nd Jul 2025

6 PM

3 AM3rd Jul 2025

Day time

Avg. Highest Time

5PM2nd Jul

64AQI

Avg. Lowest Time

10AM2nd Jul

40AQI

Night time

Avg. Highest Time

7PM2nd Jul

64AQI

Avg. Lowest Time

3AM3rd Jul

51AQI

In the last 24 hours,

Huangyan's AQI reached its highest point of 64 at 5 PM during the Day, while the lowest point, 40, was recorded at 10 AM during the Day between 2nd Jul and 3rd Jul 2025.

Day & Night AQI Trend : Jun - Jul 2025
Huangyan, Zhejiang, 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

21°C19/25°C

22°C17/28°C

22°C16/28°C

24°C18/30°C

26°C21/32°C

26°C23/31°C

25°C23/31°C

25°C22/29°C

22°C21/23°C

24°C20/28°C

24°C23/25°C

26°C23/33°C

26°C23/32°C

25°C21/31°C

25°C22/32°C

26°C22/33°C

26°C23/31°C

27°C23/31°C

27°C23/32°C

25°C23/29°C

26°C23/31°C

26°C23/32°C

25°C23/29°C

27°C23/33°C

27°C24/33°C

27°C24/32°C

27°C23/32°C

28°C24/33°C

28°C25/33°C

28°C24/34°C

4 AM

11 AM

6 PM

11 PM

3 AM

0°C0/0°C

Day time

Avg. Highest Time

4 AM - 7 AM

57AQI

4 hours / Day

120 hours / Month

Avg. Lowest Time

8 AM - 6 PM

54AQI

11 hours / Day

330 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 4 AM to 7 AM (Avg. 57), while the lowest AQI was between 8 AM to 6 PM (Avg. 54).

Night time

Avg. Highest Time

1 AM - 8 PM

57AQI

5 hours / Day

150 hours / Month

Avg. Lowest Time

12 AM

52AQI

1 hours / Day

30 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 1 AM to 8 PM (Avg. 57), while the lowest AQI was between 12 AM to 12 AM (Avg. 52).

2025 Days Vs Air Quality
Huangyan, Zhejiang, China

2025

75%

136

18%

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

Good

13 Days

Moderate

136 Days

Poor

33 Days

Unhealthy

0 Days

Severe

0 Days

Hazardous

0 Days

Under WHO’s Safe Air Quality Limits: 7%

Health Risk Level:

Extreme

In 2025, 7% of 184 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.

Annual Air Quality Insights
Huangyan, Zhejiang, 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.

101AQI

97AQI

82AQI

69AQI

56AQI

46AQI

No. of days

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

202581AQI

136

Highest AQI recorded in

January

101AQI

Lowest AQI recorded in

July

46AQI

202471AQI

103

206

Highest AQI recorded in

January

114AQI

Lowest AQI recorded in

July

44AQI

202371AQI

238

Highest AQI recorded in

December

90AQI

Lowest AQI recorded in

July

48AQI

202265AQI

200

Highest AQI recorded in

January

85AQI

Lowest AQI recorded in

June

52AQI

202164AQI

115

216

Highest AQI recorded in

January

90AQI

Lowest AQI recorded in

August

44AQI

202064AQI

172

Highest AQI recorded in

December

92AQI

Lowest AQI recorded in

August

45AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded

2025(Avg.)

81AQI

Least Polluted Year Recorded

2020(Avg.)

64AQI

Huangyan's annual 2025 AQI (81) shows an average percentage change of 20.6% (worsened AQI) compared to previous years: 2020 (64), 2021 (64), 2022 (65), 2023 (71), 2024 (71).


4 AM	51
5 AM	50
6 AM	50
7 AM	51
8 AM	40
9 AM	40
10 AM	40
11 AM	44
12 PM	52
1 PM	55
2 PM	50
3 PM	49
4 PM	61
5 PM	64
6 PM	64
7 PM	64
8 PM	64
9 PM	64
10 PM	64
11 PM	64
12 AM	64
1 AM	55
2 AM	51
3 AM	51

Huangyan, Zhejiang, China Historical Air Quality Analysis

July Air Quality AnalysisHuangyan, Zhejiang, China

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025Huangyan, Zhejiang, China

Day & Night AQI Trend : Jun - Jul 2025Huangyan, Zhejiang, China

2025 Days Vs Air Quality Huangyan, Zhejiang, China

Annual Air Quality InsightsHuangyan, Zhejiang, China

AQI levels in 2025

No. of days

July Air Quality Analysis
Huangyan, Zhejiang, China

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Huangyan, Zhejiang, China

Day & Night AQI Trend : Jun - Jul 2025
Huangyan, Zhejiang, China

2025 Days Vs Air Quality
Huangyan, Zhejiang, China

Annual Air Quality Insights
Huangyan, Zhejiang, China