Putuo Mountain, Zhoushan, Zhejiang, China Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
February Air Quality Analysis
Putuo Mountain, Zhoushan, Zhejiang, China
AQI Trends: Highest and Lowest
Same Day Analysis (14th February):
On this day, AQI across the 3 years varied significantly: 2026 ranks 2nd highest AQI at 55 of Moderate air quality, showing improvement over 2025 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 13th Feb - 14th Feb 2026
Putuo Mountain, Zhoushan, Zhejiang, China
6 AM13th Feb 2026
5 PM
5 AM14th Feb 2026
102AQI
80AQI
87AQI
50AQI
In the last 24 hours,
Putuo Mountain's AQI reached its highest point of 102 at 9 AM during the Day, while the lowest point, 50, was recorded at 4 AM during the Night between 13th Feb and 14th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Putuo Mountain, Zhoushan, Zhejiang, China
14°C12/15°C
13°C12/14°C
13°C13/14°C
11°C8/13°C
7°C5/8°C
5°C4/5°C
4°C4/5°C
6°C4/8°C
8°C6/9°C
11°C10/12°C
12°C9/13°C
8°C7/8°C
8°C8/9°C
10°C8/10°C
9°C8/9°C
7°C6/8°C
6°C5/7°C
7°C5/8°C
8°C6/9°C
11°C10/12°C
12°C10/12°C
8°C5/10°C
5°C3/5°C
3°C2/3°C
6°C2/8°C
9°C8/10°C
9°C8/10°C
9°C8/11°C
11°C10/12°C
12°C10/13°C
85AQI
66AQI
82AQI
70AQI
2026 Days Vs Air Quality
Putuo Mountain, Zhoushan, Zhejiang, China
18%
8
53%
24
24%
11
4%
2
Total number of days with different AQI categories in last 46 days in 2026 (319 days remaining)
Under WHO’s Safe Air Quality Limits: 18%
Health Risk Level:
Extreme
In 2026, 18% of 46 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
Putuo Mountain, Zhoushan, Zhejiang, China
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
27AQI (US)
57AQI (US)
71AQI (US)
69AQI (US)
119AQI (US)
155AQI (US)
112AQI (US)
122AQI (US)
133AQI (US)
105AQI (US)
68AQI (US)
60AQI (US)
101AQI (US)
97AQI (US)
83AQI (US)
149AQI (US)
93AQI (US)
76AQI (US)
60AQI (US)
26AQI (US)
55AQI (US)
61AQI (US)
93AQI (US)
143AQI (US)
91AQI (US)
54AQI (US)
67AQI (US)
52AQI (US)
48AQI (US)
42AQI (US)
15AQI (US)
71AQI (US)
140AQI (US)
105AQI (US)
55AQI (US)
82AQI (US)
84AQI (US)
37AQI (US)
88AQI (US)
40AQI (US)
47AQI (US)
111AQI (US)
151AQI (US)
94AQI (US)
55AQI (US)
81AQI (US)
83AQI (US)
No. of days
202681AQI (US)
Highest AQI (US) recorded in
February83AQI (US)
Lowest AQI (US) recorded in
January81AQI (US)
202563AQI (US)
Highest AQI (US) recorded in
January94AQI (US)
Lowest AQI (US) recorded in
July43AQI (US)
202455AQI (US)
Highest AQI (US) recorded in
March110AQI (US)
Lowest AQI (US) recorded in
September41AQI (US)
202384AQI (US)
Highest AQI (US) recorded in
November90AQI (US)
Lowest AQI (US) recorded in
December84AQI (US)
202254AQI (US)
Highest AQI (US) recorded in
February63AQI (US)
Lowest AQI (US) recorded in
June40AQI (US)
202152AQI (US)
Highest AQI (US) recorded in
January83AQI (US)
Lowest AQI (US) recorded in
August37AQI (US)
202054AQI (US)
Highest AQI (US) recorded in
April71AQI (US)
Lowest AQI (US) recorded in
July47AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Putuo Mountain's annual 2026 AQI (US) (81) shows an average percentage change of 38.4% (worsened AQI (US)) compared to previous years: 2020 (54), 2021 (52), 2022 (54), 2023 (84), 2024 (55), 2025 (63).