Cities With the Lowest PM2.5 Right Now

León de los Aldama has the cleanest air of any major city we track right now, with PM2.5 around 0.6 µg/m³.

Updated hourly. Last updated Oct 17, 2026, 11:05:09 PM UTC.

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

Top Cities Ranked by PM2.5

#	City	Country	US AQI	Category	PM2.5
🥇	León de los Aldama	Mexico	3	Good	0.6 µg/m³
=2	Puebla	Mexico	6	Good	1.1 µg/m³
=2	Santiago de Querétaro	Mexico	6	Good	1.1 µg/m³
=3	Yaounde	Cameroon	11	Good	1.9 µg/m³
=3	Zapopan	Mexico	11	Good	1.9 µg/m³
=3	Guadalajara	Mexico	11	Good	1.9 µg/m³
4	Antananarivo	Madagascar	11	Good	2.0 µg/m³
5	San Antonio	United States	12	Good	2.1 µg/m³
6	Novosibirsk	Russia	14	Good	2.5 µg/m³
=7	Madrid	Spain	14	Good	2.6 µg/m³
=7	Hamburg	Germany	14	Good	2.6 µg/m³
=8	Belo Horizonte	Brazil	17	Good	3.0 µg/m³
=8	Queens	United States	17	Good	3.0 µg/m³
=8	Fushun	China	17	Good	3.0 µg/m³
=9	Porto Alegre	Brazil	18	Good	3.2 µg/m³
=9	Adelaide	Australia	18	Good	3.2 µg/m³
=10	Cali	Colombia	18	Good	3.3 µg/m³
=10	Iztapalapa	Mexico	18	Good	3.3 µg/m³
=10	Konya	Türkiye	18	Good	3.3 µg/m³
=11	Ankara	Türkiye	19	Good	3.4 µg/m³
=11	Berlin	Germany	19	Good	3.4 µg/m³
=12	Ciudad Juárez	Mexico	19	Good	3.5 µg/m³
=12	Antalya	Türkiye	19	Good	3.5 µg/m³
=13	Mexico City	Mexico	21	Good	3.7 µg/m³
=13	Shenyang	China	21	Good	3.7 µg/m³
=13	Ecatepec de Morelos	Mexico	21	Good	3.7 µg/m³
=14	Mogadishu	Somalia	21	Good	3.8 µg/m³
=14	Budta	Philippines	21	Good	3.8 µg/m³
15	Dallas	United States	22	Good	3.9 µg/m³
=16	London	United Kingdom	22	Good	4.0 µg/m³
=16	Havana	Cuba	22	Good	4.0 µg/m³
=16	Barcelona	Spain	22	Good	4.0 µg/m³
=16	Philadelphia	United States	22	Good	4.0 µg/m³
17	Quezon City	Philippines	23	Good	4.1 µg/m³
18	Kazan	Russia	23	Good	4.2 µg/m³
19	Anshan	China	25	Good	4.5 µg/m³
20	La Paz	Bolivia	26	Good	4.7 µg/m³
=21	Saint Petersburg	Russia	27	Good	4.8 µg/m³
=21	Guatemala City	Guatemala	27	Good	4.8 µg/m³
=22	Bursa	Türkiye	27	Good	4.9 µg/m³
=22	Guayaquil	Ecuador	27	Good	4.9 µg/m³
=22	Changde	China	27	Good	4.9 µg/m³
23	Montréal	Canada	28	Good	5.0 µg/m³
=24	Abidjan	Côte d'Ivoire	29	Good	5.3 µg/m³
=24	Abobo	Côte d'Ivoire	29	Good	5.3 µg/m³
=24	Prague	Czechia	29	Good	5.3 µg/m³
25	Belém	Brazil	31	Good	5.5 µg/m³
26	Aleppo	Syria	31	Good	5.6 µg/m³
27	Tangshan	China	32	Good	5.7 µg/m³
=28	Camayenne	Guinea	32	Good	5.8 µg/m³
=28	Conakry	Guinea	32	Good	5.8 µg/m³
=28	Qinzhou	China	32	Good	5.8 µg/m³
=29	Buenos Aires	Argentina	33	Good	6.0 µg/m³
=29	Weifang	China	33	Good	6.0 µg/m³
30	Xinyang	China	34	Good	6.2 µg/m³
=31	Wuhan	China	35	Good	6.3 µg/m³
=31	New York City	United States	35	Good	6.3 µg/m³
=31	Pyongyang	North Korea	35	Good	6.3 µg/m³
=31	Brooklyn	United States	35	Good	6.3 µg/m³
=31	Chicago	United States	35	Good	6.3 µg/m³
=31	Manhattan	United States	35	Good	6.3 µg/m³
=31	The Bronx	United States	35	Good	6.3 µg/m³
32	Gaziantep	Türkiye	36	Good	6.4 µg/m³
=33	Toronto	Canada	36	Good	6.5 µg/m³
=33	Paris	France	36	Good	6.5 µg/m³
=33	Adana	Türkiye	36	Good	6.5 µg/m³
34	Nairobi	Kenya	37	Good	6.6 µg/m³
35	Yekaterinburg	Russia	37	Good	6.7 µg/m³
36	Dazhou	China	38	Good	6.8 µg/m³
37	Munich	Germany	39	Good	7.0 µg/m³
=38	Yantai	China	39	Good	7.1 µg/m³
=38	Córdoba	Argentina	39	Good	7.1 µg/m³
=39	Brasilia	Brazil	40	Good	7.2 µg/m³
=39	Mombasa	Kenya	40	Good	7.2 µg/m³
=40	Damascus	Syria	41	Good	7.3 µg/m³
=40	Liuzhou	China	41	Good	7.3 µg/m³
=40	Jining	China	41	Good	7.3 µg/m³
=41	Jinan	China	41	Good	7.4 µg/m³
=41	Nanning	China	41	Good	7.4 µg/m³
=41	Zibo	China	41	Good	7.4 µg/m³
=41	Accra	Ghana	41	Good	7.4 µg/m³
=42	Phnom Penh	Cambodia	42	Good	7.6 µg/m³
=42	Santa Cruz de la Sierra	Bolivia	42	Good	7.6 µg/m³
=42	Yiyang	China	42	Good	7.6 µg/m³
=43	Algiers	Algeria	43	Good	7.7 µg/m³
=43	Guilin	China	43	Good	7.7 µg/m³
=43	Goiânia	Brazil	43	Good	7.7 µg/m³
=44	Zunyi	China	43	Good	7.8 µg/m³
=44	Davao	Philippines	43	Good	7.8 µg/m³
=45	Brisbane	Australia	44	Good	7.9 µg/m³
=45	Daqing	China	44	Good	7.9 µg/m³
=46	Houston	United States	44	Good	8.0 µg/m³
=46	Medellín	Colombia	44	Good	8.0 µg/m³
=46	Jilin	China	44	Good	8.0 µg/m³
=46	Caloocan City	Philippines	44	Good	8.0 µg/m³
47	Phoenix	United States	46	Good	8.3 µg/m³
=48	Alexandria	Egypt	47	Good	8.4 µg/m³
=48	Manila	Philippines	47	Good	8.4 µg/m³
49	Liaocheng	China	47	Good	8.5 µg/m³
50	Yiwu	China	49	Good	8.8 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 Are PM2.5 Levels So Low in These Cities?

The cleanest-air cities are usually those with light traffic and industry, plenty of wind and rain to clear the skies, and a coastal or high-latitude setting. Air quality shifts through the day, so a city near the top now may not stay there. This list samples live PM2.5 readings across hundreds of large cities and updates through the day.

We rank by PM2.5, the fine particles most relevant to health, so a low figure means genuinely clean air to breathe. Right now the cleanest air among the cities we track is in León de los Aldama, with PM2.5 around 0.6 µg/m³.

Frequently Asked Questions: Cities With the Lowest PM2.5 Right Now

Which city has the cleanest air right now?

Among the cities we track, León de los Aldama has the lowest PM2.5 right now, around 0.6 µg/m³ (as of October 17, 2026).

What counts as clean air?

The World Health Organization suggests keeping PM2.5 below about 15 micrograms per cubic metre over 24 hours. The lower the figure, the cleaner the air.

Why do some cities have consistently clean air?

Light traffic and industry, frequent wind and rain, and a coastal or high-latitude location all help keep particle levels low.

Cities With the Lowest PM2.5 Right Now

Top Cities Ranked by PM2.5

Why Are PM2.5 Levels So Low in These Cities?

Frequently Asked Questions: Cities With the Lowest PM2.5 Right Now

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