Samastipur, Bihar, India Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Samastipur, Bihar, India
AQI Trends: Highest and Lowest
Same Day Analysis (27th September):
On this day, AQI across the 4 years varied significantly: 2026 ranks 3rd highest AQI at 109 of Poor air quality, showing improvement over 2025 and 2023 on the same day.
Day & Night AQI Trend: 26th Sep - 27th Sep 2026
Samastipur, Bihar, India
5 AM26th Sep 2026
5 PM
4 AM27th Sep 2026
122AQI
71AQI
103AQI
88AQI
In the last 24 hours,
Samastipur's AQI reached its highest point of 122 at 10 AM during the Day, while the lowest point, 71, was recorded at 5 AM during the Day between 26th Sep and 27th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Samastipur, Bihar, India
30°C29/31°C
32°C29/36°C
31°C28/34°C
29°C26/33°C
26°C25/28°C
29°C26/33°C
30°C27/33°C
31°C28/35°C
30°C28/35°C
30°C28/34°C
31°C29/35°C
31°C28/35°C
31°C29/35°C
31°C28/34°C
30°C26/35°C
30°C26/35°C
31°C28/35°C
32°C30/35°C
31°C28/35°C
31°C27/35°C
31°C29/35°C
31°C27/36°C
32°C28/36°C
31°C28/35°C
32°C27/36°C
29°C25/35°C
23°C23/25°C
24°C23/26°C
26°C24/31°C
27°C24/31°C
113AQI
109AQI
113AQI
110AQI
2026 Days Vs Air Quality
Samastipur, Bihar, India
15%
40
43%
115
23%
62
17%
45
3%
8
Total number of days with different AQI categories in last 270 days in 2026 (95 days remaining)
Under WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2026, 0% of 270 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
Samastipur, Bihar, India
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
276AQI (US)
296AQI (US)
238AQI (US)
176AQI (US)
201AQI (US)
251AQI (US)
220AQI (US)
243AQI (US)
214AQI (US)
186AQI (US)
331AQI (US)
280AQI (US)
214AQI (US)
218AQI (US)
231AQI (US)
274AQI (US)
273AQI (US)
265AQI (US)
240AQI (US)
312AQI (US)
261AQI (US)
232AQI (US)
234AQI (US)
228AQI (US)
223AQI (US)
319AQI (US)
329AQI (US)
398AQI (US)
168AQI (US)
197AQI (US)
189AQI (US)
209AQI (US)
226AQI (US)
224AQI (US)
184AQI (US)
180AQI (US)
184AQI (US)
203AQI (US)
255AQI (US)
354AQI (US)
214AQI (US)
218AQI (US)
226AQI (US)
173AQI (US)
206AQI (US)
181AQI (US)
198AQI (US)
268AQI (US)
212AQI (US)
198AQI (US)
187AQI (US)
165AQI (US)
176AQI (US)
182AQI (US)
242AQI (US)
230AQI (US)
182AQI (US)
182AQI (US)
185AQI (US)
178AQI (US)
166AQI (US)
231AQI (US)
420AQI (US)
208AQI (US)
232AQI (US)
241AQI (US)
239AQI (US)
227AQI (US)
206AQI (US)
236AQI (US)
228AQI (US)
1268AQI (US)
187AQI (US)
191AQI (US)
192AQI (US)
172AQI (US)
183AQI (US)
205AQI (US)
166AQI (US)
133AQI (US)
144AQI (US)
186AQI (US)
172AQI (US)
175AQI (US)
215AQI (US)
194AQI (US)
132AQI (US)
148AQI (US)
157AQI (US)
160AQI (US)
147AQI (US)
142AQI (US)
129AQI (US)
117AQI (US)
93AQI (US)
114AQI (US)
142AQI (US)
157AQI (US)
148AQI (US)
133AQI (US)
141AQI (US)
162AQI (US)
166AQI (US)
172AQI (US)
174AQI (US)
156AQI (US)
155AQI (US)
167AQI (US)
126AQI (US)
155AQI (US)
156AQI (US)
156AQI (US)
170AQI (US)
157AQI (US)
162AQI (US)
115AQI (US)
104AQI (US)
119AQI (US)
104AQI (US)
86AQI (US)
122AQI (US)
92AQI (US)
123AQI (US)
138AQI (US)
92AQI (US)
132AQI (US)
93AQI (US)
141AQI (US)
103AQI (US)
113AQI (US)
131AQI (US)
150AQI (US)
121AQI (US)
100AQI (US)
134AQI (US)
159AQI (US)
166AQI (US)
151AQI (US)
143AQI (US)
162AQI (US)
140AQI (US)
121AQI (US)
150AQI (US)
120AQI (US)
138AQI (US)
85AQI (US)
88AQI (US)
101AQI (US)
100AQI (US)
130AQI (US)
161AQI (US)
160AQI (US)
159AQI (US)
118AQI (US)
155AQI (US)
143AQI (US)
106AQI (US)
160AQI (US)
148AQI (US)
124AQI (US)
133AQI (US)
99AQI (US)
116AQI (US)
141AQI (US)
114AQI (US)
136AQI (US)
118AQI (US)
143AQI (US)
137AQI (US)
136AQI (US)
119AQI (US)
124AQI (US)
113AQI (US)
120AQI (US)
142AQI (US)
146AQI (US)
133AQI (US)
145AQI (US)
150AQI (US)
98AQI (US)
114AQI (US)
144AQI (US)
121AQI (US)
114AQI (US)
113AQI (US)
94AQI (US)
64AQI (US)
91AQI (US)
116AQI (US)
134AQI (US)
106AQI (US)
99AQI (US)
98AQI (US)
84AQI (US)
91AQI (US)
109AQI (US)
96AQI (US)
111AQI (US)
140AQI (US)
120AQI (US)
101AQI (US)
93AQI (US)
85AQI (US)
85AQI (US)
98AQI (US)
99AQI (US)
104AQI (US)
105AQI (US)
101AQI (US)
96AQI (US)
86AQI (US)
102AQI (US)
127AQI (US)
134AQI (US)
143AQI (US)
106AQI (US)
93AQI (US)
97AQI (US)
134AQI (US)
137AQI (US)
116AQI (US)
104AQI (US)
146AQI (US)
156AQI (US)
151AQI (US)
125AQI (US)
123AQI (US)
144AQI (US)
145AQI (US)
85AQI (US)
112AQI (US)
137AQI (US)
157AQI (US)
164AQI (US)
143AQI (US)
122AQI (US)
106AQI (US)
110AQI (US)
108AQI (US)
150AQI (US)
153AQI (US)
110AQI (US)
100AQI (US)
90AQI (US)
80AQI (US)
85AQI (US)
95AQI (US)
96AQI (US)
119AQI (US)
123AQI (US)
142AQI (US)
146AQI (US)
131AQI (US)
87AQI (US)
80AQI (US)
103AQI (US)
126AQI (US)
147AQI (US)
131AQI (US)
109AQI (US)
118AQI (US)
132AQI (US)
154AQI (US)
121AQI (US)
136AQI (US)
113AQI (US)
58AQI (US)
62AQI (US)
92AQI (US)
109AQI (US)
249AQI (US)
209AQI (US)
232AQI (US)
141AQI (US)
126AQI (US)
132AQI (US)
103AQI (US)
127AQI (US)
111AQI (US)
No. of days
2026159AQI (US)
Highest AQI (US) recorded in
January249AQI (US)
Lowest AQI (US) recorded in
July103AQI (US)
2025112AQI (US)
Highest AQI (US) recorded in
December212AQI (US)
Lowest AQI (US) recorded in
August73AQI (US)
2024121AQI (US)
Highest AQI (US) recorded in
November177AQI (US)
Lowest AQI (US) recorded in
September47AQI (US)
2023155AQI (US)
Highest AQI (US) recorded in
January250AQI (US)
Lowest AQI (US) recorded in
July87AQI (US)
2022247AQI (US)
Highest AQI (US) recorded in
December284AQI (US)
Lowest AQI (US) recorded in
October185AQI (US)
Most & Least Polluted Years Over the Last 5 Years
Samastipur's annual 2026 AQI (US) (159) shows an average percentage change of 10.08% (worsened AQI (US)) compared to previous years: 2022 (247), 2023 (155), 2024 (121), 2025 (112).