Bhagalpur, Bihar, India Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Bhagalpur, Bihar, India
AQI Trends: Highest and Lowest
Same Day Analysis (17th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 153 of Unhealthy air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 18th Oct - 19th Oct 2025
Bhagalpur, Bihar, India
5 AM18th Oct 2025
5 PM
4 AM19th Oct 2025
AQI
AQI
180AQI
127AQI
In the last 24 hours,
Bhagalpur's AQI reached its highest point of 180 at 3 AM during the Night, while the lowest point, 127, was recorded at 5 PM during the Night between 18th Oct and 19th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Bhagalpur, Bihar, India
30°C26/34°C
30°C27/35°C
31°C28/34°C
32°C28/36°C
31°C28/35°C
30°C27/33°C
31°C26/36°C
32°C28/37°C
30°C27/34°C
30°C26/35°C
31°C27/36°C
32°C28/37°C
31°C29/36°C
27°C25/32°C
26°C25/30°C
27°C25/31°C
25°C22/29°C
26°C23/29°C
28°C24/31°C
29°C26/33°C
29°C28/33°C
28°C24/32°C
26°C22/32°C
26°C23/32°C
26°C21/32°C
26°C21/32°C
25°C21/31°C
25°C21/31°C
26°C21/31°C
--°C/°C
--°C/°C
104AQI
88AQI
108AQI
89AQI
2025 Days Vs Air Quality
Bhagalpur, Bihar, India
61%
176
28%
82
11%
32
Total number of days with different AQI categories in last 291 days in 2025 (74 days remaining)
Under WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2025, 0% of 291 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
Bhagalpur, Bihar, India
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
150AQI
151AQI
171AQI
169AQI
164AQI
174AQI
165AQI
145AQI
157AQI
170AQI
162AQI
167AQI
161AQI
168AQI
149AQI
155AQI
163AQI
147AQI
151AQI
163AQI
164AQI
164AQI
168AQI
166AQI
166AQI
163AQI
170AQI
163AQI
169AQI
174AQI
169AQI
170AQI
162AQI
144AQI
143AQI
151AQI
131AQI
126AQI
136AQI
149AQI
148AQI
133AQI
121AQI
103AQI
131AQI
138AQI
137AQI
137AQI
143AQI
141AQI
134AQI
149AQI
146AQI
119AQI
126AQI
126AQI
138AQI
136AQI
144AQI
145AQI
101AQI
97AQI
89AQI
112AQI
102AQI
110AQI
120AQI
126AQI
154AQI
137AQI
136AQI
137AQI
138AQI
118AQI
110AQI
94AQI
96AQI
90AQI
106AQI
98AQI
98AQI
77AQI
105AQI
108AQI
115AQI
121AQI
128AQI
100AQI
100AQI
104AQI
101AQI
113AQI
113AQI
114AQI
119AQI
138AQI
121AQI
110AQI
96AQI
80AQI
81AQI
99AQI
82AQI
83AQI
78AQI
98AQI
89AQI
75AQI
100AQI
114AQI
128AQI
136AQI
117AQI
114AQI
113AQI
113AQI
86AQI
73AQI
72AQI
73AQI
79AQI
77AQI
84AQI
86AQI
89AQI
79AQI
94AQI
85AQI
84AQI
90AQI
87AQI
96AQI
99AQI
107AQI
107AQI
92AQI
82AQI
82AQI
69AQI
75AQI
72AQI
67AQI
69AQI
68AQI
64AQI
59AQI
68AQI
71AQI
71AQI
61AQI
80AQI
90AQI
84AQI
81AQI
74AQI
72AQI
91AQI
90AQI
110AQI
113AQI
122AQI
109AQI
97AQI
90AQI
85AQI
83AQI
81AQI
70AQI
69AQI
67AQI
70AQI
74AQI
72AQI
72AQI
73AQI
72AQI
74AQI
71AQI
70AQI
70AQI
70AQI
64AQI
62AQI
54AQI
60AQI
58AQI
58AQI
58AQI
56AQI
55AQI
53AQI
54AQI
58AQI
62AQI
59AQI
58AQI
60AQI
65AQI
64AQI
67AQI
68AQI
67AQI
72AQI
71AQI
72AQI
68AQI
67AQI
71AQI
69AQI
67AQI
71AQI
73AQI
79AQI
75AQI
74AQI
82AQI
81AQI
78AQI
78AQI
80AQI
80AQI
79AQI
78AQI
77AQI
70AQI
68AQI
68AQI
68AQI
70AQI
66AQI
66AQI
67AQI
69AQI
69AQI
66AQI
66AQI
65AQI
73AQI
73AQI
72AQI
69AQI
70AQI
75AQI
73AQI
70AQI
67AQI
68AQI
74AQI
79AQI
75AQI
82AQI
85AQI
86AQI
84AQI
83AQI
85AQI
77AQI
76AQI
72AQI
76AQI
75AQI
80AQI
76AQI
74AQI
88AQI
85AQI
82AQI
73AQI
86AQI
82AQI
96AQI
102AQI
96AQI
104AQI
71AQI
59AQI
73AQI
77AQI
77AQI
104AQI
118AQI
122AQI
114AQI
120AQI
117AQI
129AQI
133AQI
147AQI
148AQI
153AQI
163AQI
138AQI
112AQI
101AQI
80AQI
82AQI
63AQI
73AQI
80AQI
110AQI
No. of days
202599AQI
Highest AQI recorded in
January163AQI
Lowest AQI recorded in
July63AQI
2024130AQI
Highest AQI recorded in
January197AQI
Lowest AQI recorded in
July76AQI
2023151AQI
Highest AQI recorded in
January266AQI
Lowest AQI recorded in
July75AQI
2022151AQI
Highest AQI recorded in
December282AQI
Lowest AQI recorded in
July84AQI
202199AQI
Highest AQI recorded in
December161AQI
Lowest AQI recorded in
February45AQI
2020151AQI
Highest AQI recorded in
November157AQI
Lowest AQI recorded in
October100AQI
Most & Least Polluted Years Over the Last 6 Years
Bhagalpur's annual 2025 AQI (99) shows an average percentage change of -25.06% (improved AQI) compared to previous years: 2020 (151), 2021 (99), 2022 (151), 2023 (151), 2024 (130).