Longquan Environmental Building, Longquan, 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
Longquan Environmental Building, Longquan, Zhejiang, China
AQI Trends: Highest and Lowest
Same Day Analysis (7th February):
On this day, AQI across the 3 years varied significantly: 2026 ranks 2nd highest AQI at 36 of Good air quality, showing improvement over 2025 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 6th Feb - 7th Feb 2026
Longquan Environmental Building, Longquan, Zhejiang, China
6 AM6th Feb 2026
5 PM
5 AM7th Feb 2026
152AQI
8AQI
21AQI
8AQI
In the last 24 hours,
Longquan Environmental Building's AQI reached its highest point of 152 at 7 AM during the Day, while the lowest point, 8, was recorded at 12 AM during the Night between 6th Feb and 7th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Longquan Environmental Building, Longquan, Zhejiang, China
4°C-4/13°C
6°C-1/15°C
5°C-2/14°C
7°C1/16°C
9°C1/18°C
9°C-1/21°C
11°C4/21°C
10°C2/21°C
10°C4/21°C
10°C3/22°C
13°C6/22°C
5°C1/10°C
2°C-1/6°C
2°C-3/8°C
3°C-5/14°C
7°C-1/18°C
10°C2/21°C
13°C6/21°C
9°C6/11°C
6°C0/10°C
6°C0/15°C
10°C2/17°C
7°C5/9°C
6°C3/9°C
5°C-1/14°C
6°C-2/16°C
11°C3/21°C
14°C8/22°C
12°C8/16°C
6°C3/8°C
91AQI
77AQI
93AQI
81AQI
2026 Days Vs Air Quality
Longquan Environmental Building, Longquan, Zhejiang, China
16%
6
53%
20
32%
12
Total number of days with different AQI categories in last 40 days in 2026 (325 days remaining)
Under WHO’s Safe Air Quality Limits: 16%
Health Risk Level:
Extreme
In 2026, 16% of 40 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
Longquan Environmental Building, Longquan, Zhejiang, China
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
44AQI (US)
51AQI (US)
115AQI (US)
105AQI (US)
99AQI (US)
101AQI (US)
91AQI (US)
79AQI (US)
78AQI (US)
79AQI (US)
81AQI (US)
85AQI (US)
86AQI (US)
93AQI (US)
88AQI (US)
97AQI (US)
111AQI (US)
135AQI (US)
95AQI (US)
24AQI (US)
71AQI (US)
117AQI (US)
141AQI (US)
125AQI (US)
101AQI (US)
92AQI (US)
37AQI (US)
125AQI (US)
90AQI (US)
29AQI (US)
22AQI (US)
72AQI (US)
97AQI (US)
117AQI (US)
83AQI (US)
107AQI (US)
81AQI (US)
36AQI (US)
87AQI (US)
85AQI (US)
No. of days
202686AQI (US)
Highest AQI (US) recorded in
January87AQI (US)
Lowest AQI (US) recorded in
February85AQI (US)
202574AQI (US)
Highest AQI (US) recorded in
January107AQI (US)
Lowest AQI (US) recorded in
July47AQI (US)
202463AQI (US)
Highest AQI (US) recorded in
December109AQI (US)
Lowest AQI (US) recorded in
July47AQI (US)
202366AQI (US)
Highest AQI (US) recorded in
November69AQI (US)
Lowest AQI (US) recorded in
December66AQI (US)
202253AQI (US)
Highest AQI (US) recorded in
March64AQI (US)
Lowest AQI (US) recorded in
June40AQI (US)
202157AQI (US)
Highest AQI (US) recorded in
December88AQI (US)
Lowest AQI (US) recorded in
August43AQI (US)
202054AQI (US)
Highest AQI (US) recorded in
April73AQI (US)
Lowest AQI (US) recorded in
July38AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Longquan Environmental Building's annual 2026 AQI (US) (86) shows an average percentage change of 43.4% (worsened AQI (US)) compared to previous years: 2020 (54), 2021 (57), 2022 (53), 2023 (66), 2024 (63), 2025 (74).