Biyang County Urban Construction Bureau, Yakou, Henan, China Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
March Air Quality Analysis
Biyang County Urban Construction Bureau, Yakou, Henan, China
AQI Trends: Highest and Lowest
Same Day Analysis (5th March):
On this day, AQI across the 3 years varied significantly: 2026 ranks 1st highest AQI at 145 of Poor air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Mar - 5th Mar 2026
Biyang County Urban Construction Bureau, Yakou, Henan, China
7 AM4th Mar 2026
6 PM
6 AM5th Mar 2026
148AQI
118AQI
152AQI
132AQI
In the last 24 hours,
Biyang County Urban Construction Bureau's AQI reached its highest point of 152 at 2 AM during the Night, while the lowest point, 118, was recorded at 1 PM during the Day between 4th Mar and 5th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Biyang County Urban Construction Bureau, Yakou, Henan, China
9°C5/14°C
10°C6/16°C
3°C1/4°C
1°C0/4°C
3°C0/8°C
2°C0/4°C
6°C1/13°C
8°C4/13°C
9°C4/15°C
11°C7/17°C
14°C8/20°C
7°C0/11°C
1°C0/4°C
4°C-1/9°C
7°C3/13°C
10°C6/16°C
12°C6/19°C
14°C8/21°C
13°C10/17°C
7°C3/9°C
7°C4/12°C
9°C4/14°C
9°C7/11°C
9°C6/12°C
9°C7/10°C
4°C2/5°C
4°C2/7°C
7°C2/13°C
9°C5/15°C
9°C8/13°C
126AQI
99AQI
120AQI
103AQI
2026 Days Vs Air Quality
Biyang County Urban Construction Bureau, Yakou, Henan, China
22%
14
45%
29
33%
21
Total number of days with different AQI categories in last 65 days in 2026 (300 days remaining)
Under WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2026, 0% of 65 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
Biyang County Urban Construction Bureau, Yakou, Henan, China
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
110AQI (US)
151AQI (US)
162AQI (US)
156AQI (US)
158AQI (US)
102AQI (US)
72AQI (US)
100AQI (US)
100AQI (US)
128AQI (US)
86AQI (US)
116AQI (US)
157AQI (US)
157AQI (US)
132AQI (US)
154AQI (US)
165AQI (US)
124AQI (US)
101AQI (US)
108AQI (US)
121AQI (US)
146AQI (US)
147AQI (US)
160AQI (US)
167AQI (US)
174AQI (US)
168AQI (US)
161AQI (US)
160AQI (US)
156AQI (US)
156AQI (US)
152AQI (US)
152AQI (US)
153AQI (US)
152AQI (US)
159AQI (US)
134AQI (US)
119AQI (US)
143AQI (US)
137AQI (US)
132AQI (US)
144AQI (US)
132AQI (US)
146AQI (US)
145AQI (US)
106AQI (US)
72AQI (US)
128AQI (US)
131AQI (US)
119AQI (US)
110AQI (US)
94AQI (US)
106AQI (US)
92AQI (US)
64AQI (US)
68AQI (US)
60AQI (US)
97AQI (US)
92AQI (US)
65AQI (US)
74AQI (US)
112AQI (US)
125AQI (US)
145AQI (US)
137AQI (US)
119AQI (US)
104AQI (US)
No. of days
2026127AQI (US)
Highest AQI (US) recorded in
January137AQI (US)
Lowest AQI (US) recorded in
March104AQI (US)
202598AQI (US)
Highest AQI (US) recorded in
December153AQI (US)
Lowest AQI (US) recorded in
September51AQI (US)
202495AQI (US)
Highest AQI (US) recorded in
December137AQI (US)
Lowest AQI (US) recorded in
July55AQI (US)
202389AQI (US)
Highest AQI (US) recorded in
November91AQI (US)
Lowest AQI (US) recorded in
December89AQI (US)
2021130AQI (US)
Highest AQI (US) recorded in
January147AQI (US)
Lowest AQI (US) recorded in
March80AQI (US)
202094AQI (US)
Highest AQI (US) recorded in
December142AQI (US)
Lowest AQI (US) recorded in
July48AQI (US)
Most & Least Polluted Years Over the Last 6 Years
Biyang County Urban Construction Bureau's annual 2026 AQI (US) (127) shows an average percentage change of 27.6% (worsened AQI (US)) compared to previous years: 2020 (94), 2021 (130), 2023 (89), 2024 (95), 2025 (98).