Hongqi, Nantong, 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
Hongqi, Nantong, Jiangsu, China
AQI Trends: Highest and Lowest
Same Day Analysis (6th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 88 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Feb - 6th Feb 2026
Hongqi, Nantong, Jiangsu, China
6 AM5th Feb 2026
5 PM
5 AM6th Feb 2026
167AQI
154AQI
177AQI
148AQI
In the last 24 hours,
Hongqi's AQI reached its highest point of 177 at 2 AM during the Night, while the lowest point, 148, was recorded at 5 AM during the Night between 5th Feb and 6th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Hongqi, Nantong, Jiangsu, China
5°C2/8°C
6°C2/11°C
6°C3/9°C
2°C0/5°C
6°C0/12°C
7°C4/12°C
11°C6/17°C
12°C8/17°C
11°C7/17°C
9°C7/11°C
8°C5/12°C
4°C1/7°C
1°C-1/3°C
-1°C-3/3°C
0°C-4/4°C
3°C-1/8°C
4°C1/9°C
7°C3/11°C
5°C3/7°C
5°C3/7°C
5°C2/8°C
6°C3/10°C
5°C3/6°C
4°C2/7°C
4°C2/7°C
6°C3/11°C
5°C2/9°C
9°C5/14°C
9°C8/12°C
4°C2/5°C
108AQI
99AQI
103AQI
98AQI
2026 Days Vs Air Quality
Hongqi, Nantong, Jiangsu, China
14%
5
32%
12
38%
14
16%
6
Total number of days with different AQI categories in last 38 days in 2026 (327 days remaining)
Under WHO’s Safe Air Quality Limits: 14%
Health Risk Level:
Extreme
In 2026, 14% of 38 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
Hongqi, Nantong, Jiangsu, China
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
32AQI (US)
56AQI (US)
98AQI (US)
147AQI (US)
167AQI (US)
147AQI (US)
115AQI (US)
151AQI (US)
139AQI (US)
118AQI (US)
61AQI (US)
70AQI (US)
145AQI (US)
154AQI (US)
164AQI (US)
194AQI (US)
149AQI (US)
59AQI (US)
30AQI (US)
45AQI (US)
66AQI (US)
89AQI (US)
140AQI (US)
150AQI (US)
112AQI (US)
40AQI (US)
76AQI (US)
73AQI (US)
51AQI (US)
53AQI (US)
25AQI (US)
111AQI (US)
144AQI (US)
112AQI (US)
101AQI (US)
158AQI (US)
88AQI (US)
101AQI (US)
119AQI (US)
No. of days
2026104AQI (US)
Highest AQI (US) recorded in
February119AQI (US)
Lowest AQI (US) recorded in
January101AQI (US)
202580AQI (US)
Highest AQI (US) recorded in
January112AQI (US)
Lowest AQI (US) recorded in
July53AQI (US)
202475AQI (US)
Highest AQI (US) recorded in
January128AQI (US)
Lowest AQI (US) recorded in
September42AQI (US)
202387AQI (US)
Highest AQI (US) recorded in
December126AQI (US)
Lowest AQI (US) recorded in
July57AQI (US)
202287AQI (US)
Highest AQI (US) recorded in
January115AQI (US)
Lowest AQI (US) recorded in
October64AQI (US)
202190AQI (US)
Highest AQI (US) recorded in
January120AQI (US)
Lowest AQI (US) recorded in
July61AQI (US)
202088AQI (US)
Highest AQI (US) recorded in
December121AQI (US)
Lowest AQI (US) recorded in
August70AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Hongqi's annual 2026 AQI (US) (104) shows an average percentage change of 23.4% (worsened AQI (US)) compared to previous years: 2020 (88), 2021 (90), 2022 (87), 2023 (87), 2024 (75), 2025 (80).