Quzhou, 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
Quzhou, Zhejiang, China

2021

2022

2023

2024

2025

AQI

Days

Days	2025	2024	2023	2022	2021
Jul. 1	42	54	86	37	28
Jul. 2	51	43	57	32	54
Jul. 3		41	48	50	64
Jul. 4		49	50	54	43
Jul. 5		55	59	42	64
Jul. 6		57	65	33	64
Jul. 7		56	59	37	68
Jul. 8		60	65	48	69
Jul. 9		60	73	55	68
Jul. 10		62	69	55	72
Jul. 11		60	74	63	79
Jul. 12		55	68	65	66
Jul. 13		63	67	73	58
Jul. 14		55	72	77	62
Jul. 15		63	78	78	60
Jul. 16		67	54	79	50
Jul. 17		64	49	68	42
Jul. 18		46	52	39	48
Jul. 19		48	49	49	60
Jul. 20		53	41	49	51
Jul. 21		58	35	55	47
Jul. 22		57	48	67	50
Jul. 23		59	44	59	37
Jul. 24		37	55	74	35
Jul. 25		31	57		32
Jul. 26		22	38		42
Jul. 27		19	35		60
Jul. 28		38	21		57
Jul. 29		32	32		57
Jul. 30		30	52		59
Jul. 31		36	44		58

AQI Trends: Highest and Lowest

Highest AQI recorded on

1st Jul 2023

86AQI

Lowest AQI recorded on

27th Jul 2024

19AQI

Same Day Analysis (2nd July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 51 of Moderate air quality, showing improvement over 2023 and 2021 on the same day.

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

AQI

Day

Night

5 AM2nd Jul 2025

7 PM

4 AM3rd Jul 2025

Day time

Avg. Highest Time

12PM2nd Jul

56AQI

Avg. Lowest Time

4PM2nd Jul

35AQI

Night time

Avg. Highest Time

2AM3rd Jul

53AQI

Avg. Lowest Time

12AM3rd Jul

40AQI

In the last 24 hours,

Quzhou's AQI reached its highest point of 56 at 12 PM during the Day, while the lowest point, 35, was recorded at 4 PM during the Day between 2nd Jul and 3rd Jul 2025.

Day & Night AQI Trend : Jun - Jul 2025
Quzhou, 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°C18/26°C

23°C16/31°C

22°C16/31°C

25°C16/33°C

27°C22/34°C

26°C23/31°C

25°C22/30°C

24°C21/28°C

21°C21/23°C

24°C21/29°C

27°C23/30°C

26°C24/30°C

23°C19/28°C

24°C18/30°C

27°C20/33°C

27°C23/32°C

27°C24/30°C

28°C24/34°C

28°C25/34°C

25°C23/28°C

25°C22/30°C

25°C20/29°C

26°C22/32°C

28°C24/35°C

28°C23/34°C

27°C22/34°C

26°C20/32°C

27°C23/33°C

28°C23/34°C

29°C23/34°C

5 AM

12 PM

7 PM

12 AM

4 AM

0°C0/0°C

Day time

Avg. Highest Time

9 AM - 1 PM

59AQI

5 hours / Day

150 hours / Month

Avg. Lowest Time

2 PM - 7 PM

50AQI

6 hours / Day

180 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 9 AM to 1 PM (Avg. 59), while the lowest AQI was between 2 PM to 7 PM (Avg. 50).

Night time

Avg. Highest Time

1 AM - 4 AM

57AQI

4 hours / Day

120 hours / Month

Avg. Lowest Time

12 AM

51AQI

1 hours / Day

30 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 1 AM to 4 AM (Avg. 57), while the lowest AQI was between 12 AM to 12 AM (Avg. 51).

2025 Days Vs Air Quality
Quzhou, Zhejiang, China

2025

62%

113

27%

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

Good

11 Days

Moderate

113 Days

Poor

50 Days

Unhealthy

9 Days

Severe

0 Days

Hazardous

0 Days

Under WHO’s Safe Air Quality Limits: 6%

Health Risk Level:

Extreme

In 2025, 6% 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
Quzhou, 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.

125AQI

99AQI

92AQI

91AQI

82AQI

56AQI

47AQI

No. of days

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

202590AQI

113

Highest AQI recorded in

January

125AQI

Lowest AQI recorded in

July

47AQI

202481AQI

220

Highest AQI recorded in

December

130AQI

Lowest AQI recorded in

July

49AQI

202388AQI

195

110

Highest AQI recorded in

January

112AQI

Lowest AQI recorded in

July

55AQI

202278AQI

199

Highest AQI recorded in

December

106AQI

Lowest AQI recorded in

June

53AQI

202173AQI

243

Highest AQI recorded in

January

100AQI

Lowest AQI recorded in

August

52AQI

202074AQI

159

Highest AQI recorded in

December

102AQI

Lowest AQI recorded in

June

51AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded

2025(Avg.)

90AQI

Least Polluted Year Recorded

2021(Avg.)

73AQI

Quzhou's annual 2025 AQI (90) shows an average percentage change of 15.2% (worsened AQI) compared to previous years: 2020 (74), 2021 (73), 2022 (78), 2023 (88), 2024 (81).


5 AM	52
6 AM	52
7 AM	52
8 AM	51
9 AM	48
10 AM	51
11 AM	54
12 PM	56
1 PM	56
2 PM	52
3 PM	42
4 PM	35
5 PM	36
6 PM	37
7 PM	40
8 PM	40
9 PM	40
10 PM	40
11 PM	40
12 AM	40
1 AM	50
2 AM	53
3 AM	53
4 AM	53

Quzhou, Zhejiang, China Historical Air Quality Analysis

July Air Quality AnalysisQuzhou, Zhejiang, China

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

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

2025 Days Vs Air Quality Quzhou, Zhejiang, China

Annual Air Quality InsightsQuzhou, Zhejiang, China

AQI levels in 2025

No. of days

July Air Quality Analysis
Quzhou, Zhejiang, China

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

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

2025 Days Vs Air Quality
Quzhou, Zhejiang, China

Annual Air Quality Insights
Quzhou, Zhejiang, China