Howrah, West Bengal, India Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Howrah, West Bengal, India
AQI Trends: Highest and Lowest
Same Day Analysis (31st July ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 86 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
2025 Days Vs Air Quality
Howrah, West Bengal, India
41%
75
32%
58
27%
48
Total number of days with different AQI categories in last 182 days in 2025 (183 days remaining)
Under WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2025, 0% of 182 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
Howrah, West Bengal, India
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
184AQI
172AQI
187AQI
179AQI
179AQI
173AQI
180AQI
157AQI
164AQI
180AQI
185AQI
188AQI
190AQI
183AQI
171AQI
170AQI
168AQI
171AQI
165AQI
169AQI
180AQI
182AQI
192AQI
190AQI
181AQI
161AQI
174AQI
174AQI
167AQI
157AQI
155AQI
148AQI
161AQI
158AQI
158AQI
168AQI
157AQI
150AQI
154AQI
160AQI
168AQI
158AQI
149AQI
151AQI
151AQI
155AQI
150AQI
139AQI
137AQI
141AQI
133AQI
138AQI
137AQI
136AQI
144AQI
154AQI
154AQI
164AQI
160AQI
145AQI
145AQI
141AQI
134AQI
145AQI
129AQI
154AQI
143AQI
143AQI
141AQI
131AQI
141AQI
127AQI
120AQI
106AQI
102AQI
110AQI
111AQI
137AQI
106AQI
123AQI
91AQI
120AQI
132AQI
148AQI
125AQI
130AQI
137AQI
144AQI
139AQI
119AQI
112AQI
97AQI
101AQI
114AQI
112AQI
101AQI
88AQI
84AQI
73AQI
72AQI
79AQI
80AQI
93AQI
95AQI
95AQI
102AQI
85AQI
79AQI
93AQI
93AQI
93AQI
102AQI
108AQI
95AQI
88AQI
80AQI
95AQI
108AQI
84AQI
94AQI
88AQI
86AQI
84AQI
83AQI
84AQI
84AQI
92AQI
96AQI
95AQI
110AQI
109AQI
105AQI
96AQI
93AQI
87AQI
83AQI
79AQI
69AQI
63AQI
62AQI
67AQI
75AQI
66AQI
70AQI
61AQI
58AQI
61AQI
60AQI
61AQI
65AQI
82AQI
91AQI
106AQI
99AQI
87AQI
90AQI
94AQI
108AQI
110AQI
107AQI
104AQI
93AQI
77AQI
77AQI
80AQI
73AQI
66AQI
67AQI
67AQI
66AQI
69AQI
74AQI
81AQI
77AQI
70AQI
70AQI
63AQI
63AQI
69AQI
67AQI
70AQI
175AQI
151AQI
130AQI
93AQI
80AQI
81AQI
No. of days
2025118AQI
Highest AQI recorded in
January175AQI
Lowest AQI recorded in
May80AQI
2024126AQI
Highest AQI recorded in
January218AQI
Lowest AQI recorded in
July64AQI
2023120AQI
Highest AQI recorded in
January190AQI
Lowest AQI recorded in
July52AQI
2022122AQI
Highest AQI recorded in
December200AQI
Lowest AQI recorded in
July52AQI
2021128AQI
Highest AQI recorded in
January219AQI
Lowest AQI recorded in
September70AQI
202098AQI
Highest AQI recorded in
December241AQI
Lowest AQI recorded in
May52AQI
Most & Least Polluted Years Over the Last 6 Years
Howrah's annual 2025 AQI (118) shows an average percentage change of 0.5% (worsened AQI) compared to previous years: 2020 (98), 2021 (128), 2022 (122), 2023 (120), 2024 (126).
