Yanshan Zi Zhan, Licheng, Jiangsu, 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+

September Air Quality Analysis
Yanshan Zi Zhan, Licheng, Jiangsu, China

2021

2024

2025

AQI

Days

Days	2025	2024	2021
Sep. 1	56	71	112
Sep. 2	56	79	95
Sep. 3	58	66	72
Sep. 4	76	72	61
Sep. 5	69		86
Sep. 6	70	95	68
Sep. 7	73	106	52
Sep. 8	68	89	77
Sep. 9	59	57	90
Sep. 10	57	77	97
Sep. 11	58	28	54
Sep. 12	57	59	46
Sep. 13	58	57	38
Sep. 14	60	76	69
Sep. 15	57	51	73
Sep. 16	61	41	59
Sep. 17	62	33	86
Sep. 18		44	97
Sep. 19		42	97
Sep. 20		27	57
Sep. 21		44	51
Sep. 22		47	64
Sep. 23		59	98
Sep. 24		77	71
Sep. 25		108	52
Sep. 26		92	45
Sep. 27		62	78
Sep. 28		104	94
Sep. 29		79	63
Sep. 30		75	47

AQI Trends: Highest and Lowest

Highest AQI recorded on

1st Sep 2021

112AQI

Lowest AQI recorded on

20th Sep 2024

27AQI

Same Day Analysis (17th September ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 62 of Moderate air quality, showing improvement over 2021 on the same day.

Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Yanshan Zi Zhan, Licheng, Jiangsu, China

AQI

Day

Night

5 AM17th Sep 2025

6 PM

4 AM18th Sep 2025

Day time

Avg. Highest Time

10AM17th Sep

80AQI

Avg. Lowest Time

6PM17th Sep

51AQI

Night time

Avg. Highest Time

3AM18th Sep

62AQI

Avg. Lowest Time

12AM18th Sep

55AQI

In the last 24 hours,

Yanshan Zi Zhan's AQI reached its highest point of 80 at 10 AM during the Day, while the lowest point, 51, was recorded at 6 PM during the Day between 17th Sep and 18th Sep 2025.

Day & Night AQI Trend : Aug - Sep 2025
Yanshan Zi Zhan, Licheng, Jiangsu, China

AugSep

19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th

Day

Night

30°C26/36°C

31°C27/36°C

30°C25/37°C

29°C24/35°C

31°C26/36°C

30°C24/37°C

29°C24/34°C

30°C25/35°C

30°C26/36°C

30°C26/35°C

29°C25/36°C

27°C24/32°C

26°C24/30°C

26°C23/30°C

28°C23/33°C

28°C25/33°C

29°C25/35°C

29°C26/35°C

29°C25/33°C

29°C25/34°C

24°C23/26°C

25°C23/28°C

26°C23/29°C

27°C24/33°C

25°C22/29°C

27°C24/31°C

28°C24/34°C

29°C24/36°C

27°C24/31°C

5 AM

11 AM

6 PM

11 PM

4 AM

--°C/°C

Day time

Avg. Highest Time

8 AM - 12 PM

62AQI

5 hours / Day

150 hours / Month

Avg. Lowest Time

3 PM - 6 PM

57AQI

4 hours / Day

120 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 8 AM to 12 PM (Avg. 62), while the lowest AQI was between 3 PM to 6 PM (Avg. 57).

Night time

Avg. Highest Time

9 PM - 11 PM

61AQI

3 hours / Day

90 hours / Month

Avg. Lowest Time

12 AM - 8 PM

58AQI

7 hours / Day

210 hours / Month

In the last 30 days, during the daytime, the highest AQI was between 9 PM to 11 PM (Avg. 61), while the lowest AQI was between 12 AM to 8 PM (Avg. 58).

2025 Days Vs Air Quality
Yanshan Zi Zhan, Licheng, Jiangsu, China

2025

64%

166

24%

0.3%

Total number of days with different AQI categories in last 261 days in 2025 (104 days remaining)

Good

19 Days

Moderate

166 Days

Poor

63 Days

Unhealthy

11 Days

Severe

0 Days

Hazardous

1 Days

Under WHO’s Safe Air Quality Limits: 7%

Health Risk Level:

Extreme

In 2025, 7% of 261 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
Yanshan Zi Zhan, Licheng, Jiangsu, 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.

129AQI

117AQI

98AQI

106AQI

85AQI

60AQI

57AQI

54AQI

62AQI

No. of days

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

202586AQI

166

Highest AQI recorded in

January

129AQI

Lowest AQI recorded in

August

54AQI

202481AQI

150

Highest AQI recorded in

January

130AQI

Lowest AQI recorded in

July

52AQI

2023136AQI

Highest AQI recorded in

December

136AQI

Lowest AQI recorded in

November

134AQI

202191AQI

188

Highest AQI recorded in

January

134AQI

Lowest AQI recorded in

July

53AQI

202088AQI

161

Highest AQI recorded in

December

145AQI

Lowest AQI recorded in

June

60AQI

Most & Least Polluted Years Over the Last 5 Years

Most Polluted Year Recorded

2023(Avg.)

136AQI

Least Polluted Year Recorded

2024(Avg.)

81AQI

Yanshan Zi Zhan's annual 2025 AQI (86) shows an average percentage change of -9.08% (improved AQI) compared to previous years: 2020 (88), 2021 (91), 2023 (136), 2024 (81).


5 AM	62
6 AM	62
7 AM	62
8 AM	72
9 AM	77
10 AM	80
11 AM	70
12 PM	64
1 PM	64
2 PM	56
3 PM	58
4 PM	57
5 PM	52
6 PM	51
7 PM	60
8 PM	57
9 PM	61
10 PM	60
11 PM	55
12 AM	55
1 AM	60
2 AM	61
3 AM	62
4 AM	62

Yanshan Zi Zhan, Licheng, Jiangsu, China Historical Air Quality Analysis

September Air Quality AnalysisYanshan Zi Zhan, Licheng, Jiangsu, China

Day & Night AQI Trend: 17th Sep - 18th Sep 2025Yanshan Zi Zhan, Licheng, Jiangsu, China

Day & Night AQI Trend : Aug - Sep 2025Yanshan Zi Zhan, Licheng, Jiangsu, China

2025 Days Vs Air Quality Yanshan Zi Zhan, Licheng, Jiangsu, China

Annual Air Quality InsightsYanshan Zi Zhan, Licheng, Jiangsu, China

AQI levels in 2025

No. of days

September Air Quality Analysis
Yanshan Zi Zhan, Licheng, Jiangsu, China

Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Yanshan Zi Zhan, Licheng, Jiangsu, China

Day & Night AQI Trend : Aug - Sep 2025
Yanshan Zi Zhan, Licheng, Jiangsu, China

2025 Days Vs Air Quality
Yanshan Zi Zhan, Licheng, Jiangsu, China

Annual Air Quality Insights
Yanshan Zi Zhan, Licheng, Jiangsu, China