Longyan, Fujian, 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
Longyan, Fujian, China

2021

2022

2023

2024

2025

AQI

Days

Days	2025	2024	2023	2022	2021
Jul. 1	52	35	34	37	44
Jul. 2	53	34	30	31	44
Jul. 3		37	25	37	47
Jul. 4		40	23	35	55
Jul. 5		38	30	25	45
Jul. 6		37	38	25	59
Jul. 7		37	36	27	40
Jul. 8		33	51	33	37
Jul. 9		30	58	25	53
Jul. 10		38	53	34	61
Jul. 11		43	65	49	47
Jul. 12		26	45		36
Jul. 13		33	44	62	35
Jul. 14		48	65	69	43
Jul. 15		39	78	64	58
Jul. 16		38	50	59	56
Jul. 17		35	41	50	51
Jul. 18		41	33	45	49
Jul. 19		38	32	36	56
Jul. 20		38	37	32	43
Jul. 21		38	45	55	49
Jul. 22		48	31	57	54
Jul. 23		70	40	67	38
Jul. 24		48	49	68	30
Jul. 25		40	55		45
Jul. 26		19	27		51
Jul. 27		20	23		72
Jul. 28		23	27		74
Jul. 29		34	42		66
Jul. 30		39	35		42
Jul. 31		26	36		38

AQI Trends: Highest and Lowest

Highest AQI recorded on

15th Jul 2023

78AQI

Lowest AQI recorded on

26th Jul 2024

19AQI

Same Day Analysis (2nd July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 53 of Moderate air quality on the same day.

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Longyan, Fujian, China

AQI

Day

Night

5 AM2nd Jul 2025

7 PM

4 AM3rd Jul 2025

Day time

Avg. Highest Time

10AM2nd Jul

61AQI

Avg. Lowest Time

7PM2nd Jul

49AQI

Night time

Avg. Highest Time

2AM3rd Jul

52AQI

Avg. Lowest Time

12AM3rd Jul

49AQI

In the last 24 hours,

Longyan's AQI reached its highest point of 61 at 10 AM during the Day, while the lowest point, 49, was recorded at 12 AM during the Night between 2nd Jul and 3rd Jul 2025.

Day & Night AQI Trend : Jun - Jul 2025
Longyan, Fujian, 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

23°C19/25°C

20°C16/23°C

22°C16/30°C

23°C14/31°C

24°C17/33°C

24°C18/31°C

24°C18/32°C

27°C19/34°C

26°C18/34°C

24°C17/32°C

23°C17/30°C

23°C17/29°C

23°C17/28°C

24°C18/29°C

21°C15/26°C

21°C14/30°C

22°C16/29°C

25°C19/31°C

23°C16/31°C

24°C18/31°C

24°C17/32°C

24°C17/33°C

24°C17/34°C

23°C17/31°C

24°C17/34°C

23°C17/33°C

23°C17/31°C

25°C17/32°C

25°C18/34°C

24°C17/33°C

5 AM

12 PM

7 PM

12 AM

4 AM

0°C0/0°C

Day time

Avg. Highest Time

5 AM - 12 PM

51AQI

8 hours / Day

240 hours / Month

Avg. Lowest Time

1 PM - 7 PM

43AQI

7 hours / Day

210 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 5 AM to 12 PM (Avg. 51), while the lowest AQI was between 1 PM to 7 PM (Avg. 43).

Night time

Avg. Highest Time

1 AM - 4 AM

51AQI

4 hours / Day

120 hours / Month

Avg. Lowest Time

8 PM - 11 PM

48AQI

4 hours / Day

120 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 1 AM to 4 AM (Avg. 51), while the lowest AQI was between 8 PM to 11 PM (Avg. 48).

2025 Days Vs Air Quality
Longyan, Fujian, China

2025

24%

72%

132

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

Good

44 Days

Moderate

132 Days

Poor

7 Days

Unhealthy

0 Days

Severe

0 Days

Hazardous

0 Days

Under WHO’s Safe Air Quality Limits: 24%

Health Risk Level:

Very high

In 2025, 24% of 184 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.

Annual Air Quality Insights
Longyan, Fujian, 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.

84AQI

69AQI

67AQI

71AQI

59AQI

48AQI

53AQI

No. of days

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

202566AQI

132

Highest AQI recorded in

January

84AQI

Lowest AQI recorded in

June

48AQI

202457AQI

159

189

Highest AQI recorded in

January

85AQI

Lowest AQI recorded in

July

37AQI

202362AQI

120

225

Highest AQI recorded in

March

85AQI

Lowest AQI recorded in

July

41AQI

202262AQI

112

186

Highest AQI recorded in

January

80AQI

Lowest AQI recorded in

June

32AQI

202167AQI

107

214

Highest AQI recorded in

January

92AQI

Lowest AQI recorded in

June

42AQI

202061AQI

164

Highest AQI recorded in

April

80AQI

Lowest AQI recorded in

June

42AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded

2021(Avg.)

67AQI

Least Polluted Year Recorded

2024(Avg.)

57AQI

Longyan's annual 2025 AQI (66) shows an average percentage change of 7.08% (worsened AQI) compared to previous years: 2020 (61), 2021 (67), 2022 (62), 2023 (62), 2024 (57).


5 AM	52
6 AM	53
7 AM	52
8 AM	52
9 AM	59
10 AM	61
11 AM	60
12 PM	57
1 PM	52
2 PM	51
3 PM	51
4 PM	50
5 PM	50
6 PM	49
7 PM	49
8 PM	49
9 PM	49
10 PM	49
11 PM	49
12 AM	49
1 AM	51
2 AM	52
3 AM	52
4 AM	52

Longyan, Fujian, China Historical Air Quality Analysis

July Air Quality AnalysisLongyan, Fujian, China

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025Longyan, Fujian, China

Day & Night AQI Trend : Jun - Jul 2025Longyan, Fujian, China

2025 Days Vs Air Quality Longyan, Fujian, China

Annual Air Quality InsightsLongyan, Fujian, China

AQI levels in 2025

No. of days

July Air Quality Analysis
Longyan, Fujian, China

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Longyan, Fujian, China

Day & Night AQI Trend : Jun - Jul 2025
Longyan, Fujian, China

2025 Days Vs Air Quality
Longyan, Fujian, China

Annual Air Quality Insights
Longyan, Fujian, China