Pcku, Nanjing, Jiangsu, 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
Pcku, Nanjing, Jiangsu, China
AQI Trends: Highest and Lowest
Same Day Analysis (17th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 112 of Poor air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 16th Feb - 17th Feb 2026
Pcku, Nanjing, Jiangsu, China
6 AM16th Feb 2026
5 PM
5 AM17th Feb 2026
84AQI
26AQI
118AQI
42AQI
In the last 24 hours,
Pcku's AQI reached its highest point of 118 at 3 AM during the Night, while the lowest point, 26, was recorded at 10 AM during the Day between 16th Feb and 17th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Pcku, Nanjing, Jiangsu, China
3°C-2/6°C
-2°C-4/0°C
-2°C-4/1°C
-1°C-4/4°C
3°C-2/9°C
5°C1/10°C
7°C3/11°C
5°C4/6°C
5°C3/9°C
5°C1/9°C
6°C3/11°C
3°C2/4°C
3°C2/7°C
5°C2/8°C
7°C3/12°C
7°C3/12°C
10°C5/16°C
12°C10/15°C
4°C1/4°C
1°C-1/4°C
2°C-1/6°C
3°C0/7°C
6°C3/10°C
8°C3/13°C
10°C5/15°C
12°C7/18°C
15°C10/21°C
14°C7/20°C
5°C3/7°C
6°C2/9°C
101AQI
83AQI
103AQI
85AQI
2026 Days Vs Air Quality
Pcku, Nanjing, Jiangsu, China
2%
1
40%
19
48%
23
10%
5
Total number of days with different AQI categories in last 50 days in 2026 (315 days remaining)
Under WHO’s Safe Air Quality Limits: 2%
Health Risk Level:
Extreme
In 2026, 2% of 50 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
Pcku, Nanjing, Jiangsu, China
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
58AQI (US)
109AQI (US)
101AQI (US)
153AQI (US)
162AQI (US)
150AQI (US)
81AQI (US)
129AQI (US)
129AQI (US)
110AQI (US)
64AQI (US)
77AQI (US)
118AQI (US)
127AQI (US)
139AQI (US)
154AQI (US)
169AQI (US)
136AQI (US)
55AQI (US)
70AQI (US)
94AQI (US)
74AQI (US)
112AQI (US)
149AQI (US)
154AQI (US)
57AQI (US)
73AQI (US)
108AQI (US)
94AQI (US)
58AQI (US)
46AQI (US)
82AQI (US)
108AQI (US)
139AQI (US)
127AQI (US)
131AQI (US)
70AQI (US)
52AQI (US)
74AQI (US)
52AQI (US)
95AQI (US)
119AQI (US)
117AQI (US)
127AQI (US)
114AQI (US)
120AQI (US)
56AQI (US)
112AQI (US)
107AQI (US)
100AQI (US)
No. of days
2026104AQI (US)
Highest AQI (US) recorded in
January107AQI (US)
Lowest AQI (US) recorded in
February100AQI (US)
202584AQI (US)
Highest AQI (US) recorded in
January116AQI (US)
Lowest AQI (US) recorded in
August54AQI (US)
202479AQI (US)
Highest AQI (US) recorded in
January129AQI (US)
Lowest AQI (US) recorded in
July38AQI (US)
202385AQI (US)
Highest AQI (US) recorded in
December119AQI (US)
Lowest AQI (US) recorded in
July48AQI (US)
202280AQI (US)
Highest AQI (US) recorded in
January121AQI (US)
Lowest AQI (US) recorded in
July49AQI (US)
202176AQI (US)
Highest AQI (US) recorded in
January111AQI (US)
Lowest AQI (US) recorded in
July39AQI (US)
202071AQI (US)
Highest AQI (US) recorded in
December123AQI (US)
Lowest AQI (US) recorded in
June50AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Pcku's annual 2026 AQI (US) (104) shows an average percentage change of 32.3% (worsened AQI (US)) compared to previous years: 2020 (71), 2021 (76), 2022 (80), 2023 (85), 2024 (79), 2025 (84).