Cities With the Highest Ozone Right Now

Lahore has the highest ground-level ozone concentration in our major-city sample right now, at about 210.0 µg/m³.

Updated hourly. Last updated Sep 14, 2026, 12:05:08 PM UTC.

Cities with at least 200,000 residents; 100 cities shown.

Top Cities Ranked by Ozone (O3)

#	City	Country	US AQI	PM2.5	Ozone (O3)
🥇	Lahore	Pakistan	106	37.5 µg/m³	210.0 µg/m³
🥈	Gujranwala	Pakistan	102	35.9 µg/m³	202.0 µg/m³
=3	Rawalpindi	Pakistan	104	36.9 µg/m³	183.0 µg/m³
=3	Semarang	Indonesia	115	41.2 µg/m³	183.0 µg/m³
=4	Kinshasa	Democratic Republic of Congo	144	52.9 µg/m³	178.0 µg/m³
=4	Brazzaville	Congo	144	52.9 µg/m³	178.0 µg/m³
5	Peshawar	Pakistan	92	31.2 µg/m³	175.0 µg/m³
6	Faisalabad	Pakistan	102	36.0 µg/m³	164.0 µg/m³
7	Ludhiāna	India	74	21.5 µg/m³	162.0 µg/m³
8	Dammam	Saudi Arabia	116	41.7 µg/m³	159.0 µg/m³
9	Doha	Qatar	138	50.5 µg/m³	157.0 µg/m³
10	Multan	Pakistan	81	25.0 µg/m³	155.0 µg/m³
11	Shiraz	Iran	52	9.7 µg/m³	149.0 µg/m³
12	Nanchang	China	77	22.8 µg/m³	148.0 µg/m³
13	Soweto	South Africa	64	16.3 µg/m³	145.0 µg/m³
14	Tehran	Iran	73	21.0 µg/m³	144.0 µg/m³
=15	Kano	Nigeria	93	31.7 µg/m³	143.0 µg/m³
=15	Kabul	Afghanistan	57	12.5 µg/m³	143.0 µg/m³
16	Karaj	Iran	43	7.7 µg/m³	142.0 µg/m³
=17	Cixi	China	91	30.5 µg/m³	141.0 µg/m³
=17	Karbala	Iraq	73	20.9 µg/m³	141.0 µg/m³
=18	Isfahan	Iran	56	11.9 µg/m³	139.0 µg/m³
=18	Jamshedpur	India	77	22.9 µg/m³	139.0 µg/m³
19	Patna	India	92	30.9 µg/m³	138.0 µg/m³
=20	Johannesburg	South Africa	62	15.0 µg/m³	137.0 µg/m³
=20	Erbil	Iraq	56	11.6 µg/m³	137.0 µg/m³
=21	Al Başrah al Qadīmah	Iraq	109	38.9 µg/m³	136.0 µg/m³
=21	Kallakurichi	India	78	23.7 µg/m³	136.0 µg/m³
=21	Tabriz	Iran	31	5.5 µg/m³	136.0 µg/m³
=21	Najafgarh	India	82	25.7 µg/m³	136.0 µg/m³
=21	Basrah	Iraq	109	38.9 µg/m³	136.0 µg/m³
22	Khartoum	Sudan	66	17.0 µg/m³	135.0 µg/m³
=23	Cairo	Egypt	61	14.2 µg/m³	134.0 µg/m³
=23	Baghdad	Iraq	71	19.6 µg/m³	134.0 µg/m³
=23	Giza	Egypt	61	14.2 µg/m³	134.0 µg/m³
=23	Mecca	Saudi Arabia	163	72.2 µg/m³	134.0 µg/m³
=23	Shubrā al Khaymah	Egypt	55	11.5 µg/m³	134.0 µg/m³
24	Kananga	Democratic Republic of Congo	103	36.3 µg/m³	132.0 µg/m³
=25	Madurai	India	71	20.1 µg/m³	130.0 µg/m³
=25	Milan	Italy	78	23.6 µg/m³	130.0 µg/m³
=26	Taizhou	China	67	17.5 µg/m³	127.0 µg/m³
=26	Jinhua	China	89	29.7 µg/m³	127.0 µg/m³
=27	Ningbo	China	89	29.4 µg/m³	126.0 µg/m³
=27	Ürümqi	China	112	39.8 µg/m³	126.0 µg/m³
=27	Yiwu	China	90	30.0 µg/m³	126.0 µg/m³
=28	Lubumbashi	Democratic Republic of Congo	67	17.9 µg/m³	124.0 µg/m³
=28	Damascus	Syria	58	12.9 µg/m³	124.0 µg/m³
=29	Ürümqi	China	95	32.5 µg/m³	123.0 µg/m³
=29	Ganzhou	China	70	19.4 µg/m³	123.0 µg/m³
30	Bengaluru	India	69	18.5 µg/m³	122.0 µg/m³
=31	Bangkok	Thailand	61	14.7 µg/m³	121.0 µg/m³
=31	Almaty	Kazakhstan	66	17.1 µg/m³	121.0 µg/m³
=31	Faridabad	India	85	27.1 µg/m³	121.0 µg/m³
32	Dhaka	Bangladesh	101	35.7 µg/m³	120.0 µg/m³
33	Lusaka	Zambia	75	22.2 µg/m³	118.0 µg/m³
34	Jaipur	India	55	11.1 µg/m³	117.0 µg/m³
35	Shantou	China	63	15.8 µg/m³	116.0 µg/m³
=36	Tashkent	Uzbekistan	31	5.6 µg/m³	115.0 µg/m³
=36	Al Mawşil al Jadīdah	Iraq	57	12.4 µg/m³	115.0 µg/m³
=36	Mosul	Iraq	57	12.4 µg/m³	115.0 µg/m³
=37	Harare	Zimbabwe	48	8.7 µg/m³	114.0 µg/m³
=37	Jepara	Indonesia	77	23.1 µg/m³	114.0 µg/m³
=38	Delhi	India	83	26.1 µg/m³	113.0 µg/m³
=38	Amman	Jordan	55	11.1 µg/m³	113.0 µg/m³
=38	Rome	Italy	30	5.4 µg/m³	113.0 µg/m³
=38	Medina	Saudi Arabia	110	39.0 µg/m³	113.0 µg/m³
=39	Riyadh	Saudi Arabia	222	146.2 µg/m³	111.0 µg/m³
=39	Changsha	China	94	32.4 µg/m³	111.0 µg/m³
=39	Khulna	Bangladesh	74	21.5 µg/m³	111.0 µg/m³
40	Zhuhai	China	116	41.7 µg/m³	110.0 µg/m³
=41	Algiers	Algeria	32	5.8 µg/m³	109.0 µg/m³
=41	Lucknow	India	85	27.4 µg/m³	109.0 µg/m³
=41	Hyderabad	Pakistan	59	13.2 µg/m³	109.0 µg/m³
=42	Nairobi	Kenya	43	7.8 µg/m³	107.0 µg/m³
=42	Baku	Azerbaijan	58	13.0 µg/m³	107.0 µg/m³
=42	Mbuji-Mayi	Democratic Republic of Congo	76	22.7 µg/m³	107.0 µg/m³
=42	Beirut	Lebanon	60	13.7 µg/m³	107.0 µg/m³
=42	Ra’s Bayrūt	Lebanon	60	13.7 µg/m³	107.0 µg/m³
=43	Kanpur	India	70	19.2 µg/m³	106.0 µg/m³
=43	Antalya	Türkiye	54	10.9 µg/m³	106.0 µg/m³
44	Shanghai	China	148	54.5 µg/m³	105.0 µg/m³
=45	Wenzhou	China	85	27.5 µg/m³	104.0 µg/m³
=45	Diyarbakır	Türkiye	51	9.1 µg/m³	104.0 µg/m³
=45	Xining	China	55	11.5 µg/m³	104.0 µg/m³
=45	Qujing	China	55	11.3 µg/m³	104.0 µg/m³
=45	Meerut	India	74	21.7 µg/m³	104.0 µg/m³
=46	Barcelona	Spain	36	6.5 µg/m³	103.0 µg/m³
=46	Handan	China	79	24.2 µg/m³	103.0 µg/m³
=46	Yixing	China	123	44.4 µg/m³	103.0 µg/m³
=46	Yiyang	China	87	28.2 µg/m³	103.0 µg/m³
=47	Singapore	Singapore	103	36.2 µg/m³	102.0 µg/m³
=47	Guilin	China	70	19.2 µg/m³	102.0 µg/m³
=47	Putian	China	49	8.8 µg/m³	102.0 µg/m³
=47	Muscat	Oman	105	37.3 µg/m³	102.0 µg/m³
=47	Tianshui	China	44	7.9 µg/m³	102.0 µg/m³
=48	Busan	South Korea	65	16.4 µg/m³	101.0 µg/m³
=48	Kuwait City	Kuwait	143	52.6 µg/m³	101.0 µg/m³
=48	Mashhad	Iran	49	8.9 µg/m³	101.0 µg/m³
49	Adana	Türkiye	51	9.3 µg/m³	100.0 µg/m³
50	Abuja	Nigeria	55	11.3 µg/m³	99.0 µg/m³

Methodology: Current pollutant concentrations are sampled from WeatherAPI for up to 400 large cities; US AQI values are calculated from PM2.5 using EPA breakpoints.

Why Is Ground-Level Ozone So High in These Cities?

Ground-level ozone forms when sunlight drives reactions between pollutants from traffic, industry and other sources. Concentrations often peak on warm, sunny afternoons and can irritate the lungs even when particle pollution is modest.

Frequently Asked Questions: Cities With the Highest Ozone Right Now

Which city has the highest ozone right now?

Among the major cities we track, Lahore has the highest current ozone concentration at about 210.0 µg/m³ (as of September 14, 2026).

Is ground-level ozone the same as the ozone layer?

It is the same molecule but in the wrong place: stratospheric ozone protects Earth, while ozone near the ground is a harmful air pollutant.

Cities With the Highest Ozone Right Now

Top Cities Ranked by Ozone (O3)

Why Is Ground-Level Ozone So High in These Cities?

Frequently Asked Questions: Cities With the Highest Ozone Right Now

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