Most Polluted Cities in 2021

Name: Most Polluted Cities in India — 2021
Creator: AQI Now
License: https://aqinow.co/about

12 months of data · Source: cpcb

This archive captures the most polluted cities in India for 2021, compiled from 12 months of daily CPCB station readings across 20 cities. Jīnd, Haryana was India's most polluted city of the year with an annual average AQI of 367. The national average AQI across tracked cities was 121.

View Cleanest Cities in 2021 →

Monthly Summary

Month	Avg AQI	Cities	Most Polluted
January	173	133	Ghaziabad(AQI 353)
February	157	135	Ghaziabad(AQI 328)
March	143	137	Bhiwadi(AQI 262)
April	128	135	Bāghpat(AQI 292)
May	92	135	Bhiwadi(AQI 191)
June	86	134	Sonipat(AQI 211)
July	69	144	Nandesari(AQI 158)
August	68	142	Udupi(AQI 133)
September	57	140	Nandesari(AQI 146)
October	110	138	Ballabgarh(AQI 233)
November	187	155	Siwan(AQI 390)
December	180	157	Delhi(AQI 336)

Most Polluted Cities in 2021

#	City	Avg AQI	Days
1	JīndHaryana	367	28
2	GurugramHaryana	357	30
3	SiwanBihar	351	8
4	ChapraBihar	342	6
5	Bihar SharifBihar	334	27
6	LucknowUttar Pradesh	323	31
7	KanpurUttar Pradesh	320	31
8	KatiharBihar	309	30
9	DelhiDelhi	294	31
10	MuzaffarpurBihar	293	31
11	BulandshahrUttar Pradesh	286	29
12	NoidaUttar Pradesh	279	31
13	HisarHaryana	273	29
14	SiliguriWest Bengal	264	26
15	SingrauliMadhya Pradesh	263	29
16	FaridabadHaryana	256	31
17	GhaziabadUttar Pradesh	241	31
18	MeerutUttar Pradesh	235	28
19	GuwahatiAssam	235	31
20	PatnaBihar	234	31