Niti Marg, New Delhi, Delhi, 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
Niti Marg, New Delhi, Delhi, India
AQI Trends: Highest and Lowest
Same Day Analysis (18th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 202 of Severe air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 18th Oct - 19th Oct 2025
Niti Marg, New Delhi, Delhi, India
6 AM18th Oct 2025
6 PM
5 AM19th Oct 2025
AQI
AQI
235AQI
176AQI
In the last 24 hours,
Niti Marg's AQI reached its highest point of 235 at 10 PM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 18th Oct and 19th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Niti Marg, New Delhi, Delhi, India
32°C28/37°C
33°C29/37°C
32°C29/37°C
33°C29/37°C
32°C28/37°C
32°C28/37°C
32°C28/37°C
32°C28/37°C
32°C28/37°C
32°C29/36°C
33°C29/37°C
30°C29/33°C
30°C26/35°C
30°C27/35°C
30°C26/34°C
32°C28/35°C
32°C29/37°C
26°C21/33°C
26°C22/31°C
27°C23/31°C
27°C23/30°C
27°C23/30°C
27°C24/31°C
28°C24/32°C
28°C24/32°C
28°C24/32°C
28°C24/32°C
28°C24/32°C
29°C25/33°C
--°C/°C
--°C/°C
146AQI
132AQI
146AQI
136AQI
2025 Days Vs Air Quality
Niti Marg, New Delhi, Delhi, India
29%
83
38%
111
25%
73
8%
22
0.6%
2
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
Niti Marg, New Delhi, Delhi, India
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
210AQI
233AQI
241AQI
278AQI
215AQI
223AQI
210AQI
192AQI
309AQI
276AQI
220AQI
211AQI
189AQI
242AQI
277AQI
235AQI
204AQI
219AQI
232AQI
196AQI
192AQI
185AQI
175AQI
168AQI
155AQI
168AQI
179AQI
200AQI
310AQI
215AQI
234AQI
251AQI
222AQI
198AQI
224AQI
172AQI
167AQI
152AQI
156AQI
170AQI
195AQI
188AQI
148AQI
144AQI
144AQI
160AQI
189AQI
165AQI
152AQI
152AQI
137AQI
163AQI
142AQI
147AQI
152AQI
158AQI
175AQI
134AQI
147AQI
141AQI
116AQI
144AQI
123AQI
114AQI
115AQI
136AQI
134AQI
159AQI
160AQI
170AQI
157AQI
162AQI
144AQI
103AQI
118AQI
119AQI
127AQI
133AQI
131AQI
137AQI
142AQI
143AQI
154AQI
167AQI
148AQI
153AQI
134AQI
124AQI
115AQI
127AQI
134AQI
140AQI
136AQI
141AQI
141AQI
151AQI
172AQI
167AQI
174AQI
164AQI
134AQI
118AQI
128AQI
130AQI
130AQI
151AQI
139AQI
159AQI
139AQI
142AQI
155AQI
148AQI
152AQI
150AQI
160AQI
161AQI
165AQI
182AQI
150AQI
156AQI
156AQI
117AQI
151AQI
151AQI
118AQI
128AQI
127AQI
136AQI
121AQI
151AQI
138AQI
132AQI
106AQI
121AQI
182AQI
158AQI
125AQI
148AQI
154AQI
160AQI
157AQI
102AQI
120AQI
132AQI
100AQI
110AQI
112AQI
126AQI
136AQI
142AQI
165AQI
148AQI
123AQI
114AQI
127AQI
123AQI
118AQI
126AQI
141AQI
143AQI
141AQI
151AQI
153AQI
149AQI
150AQI
130AQI
106AQI
114AQI
108AQI
102AQI
99AQI
92AQI
84AQI
99AQI
101AQI
112AQI
106AQI
92AQI
92AQI
101AQI
86AQI
87AQI
84AQI
88AQI
85AQI
88AQI
88AQI
79AQI
85AQI
80AQI
70AQI
78AQI
82AQI
84AQI
79AQI
74AQI
75AQI
72AQI
71AQI
67AQI
69AQI
84AQI
88AQI
89AQI
84AQI
97AQI
84AQI
83AQI
92AQI
78AQI
79AQI
75AQI
70AQI
73AQI
75AQI
79AQI
76AQI
80AQI
83AQI
84AQI
75AQI
89AQI
90AQI
86AQI
91AQI
82AQI
99AQI
109AQI
95AQI
95AQI
90AQI
83AQI
82AQI
97AQI
89AQI
83AQI
76AQI
66AQI
79AQI
110AQI
111AQI
92AQI
91AQI
69AQI
65AQI
66AQI
71AQI
71AQI
78AQI
81AQI
76AQI
81AQI
81AQI
80AQI
86AQI
85AQI
94AQI
94AQI
101AQI
113AQI
122AQI
133AQI
115AQI
113AQI
115AQI
104AQI
106AQI
97AQI
104AQI
132AQI
110AQI
124AQI
113AQI
115AQI
145AQI
127AQI
163AQI
168AQI
151AQI
101AQI
135AQI
149AQI
159AQI
174AQI
166AQI
172AQI
169AQI
181AQI
182AQI
195AQI
202AQI
219AQI
168AQI
137AQI
149AQI
135AQI
118AQI
81AQI
86AQI
96AQI
159AQI
No. of days
2025134AQI
Highest AQI recorded in
January219AQI
Lowest AQI recorded in
July81AQI
2024161AQI
Highest AQI recorded in
November261AQI
Lowest AQI recorded in
August78AQI
2023159AQI
Highest AQI recorded in
November270AQI
Lowest AQI recorded in
July103AQI
2022160AQI
Highest AQI recorded in
December222AQI
Lowest AQI recorded in
August78AQI
2021190AQI
Highest AQI recorded in
November267AQI
Lowest AQI recorded in
September79AQI
Most & Least Polluted Years Over the Last 5 Years
Niti Marg's annual 2025 AQI (134) shows an average percentage change of -19.7% (improved AQI) compared to previous years: 2021 (190), 2022 (160), 2023 (159), 2024 (161).