Air Quality Database

Real-time air quality for 50 cities across 7 regions. Average AQI: 105. 23 cities with "Good" air quality right now.

Last updated: 2026-05-24 08:01:37 UTC · Updated hourly

Cleanest Cities

Auckland

Rome

Madrid

Budapest

Medellín

Most Polluted

Riyadh

1460

Delhi

633

Da Nang

211

Beijing

167

Johannesburg

166

Filter & Sort

Showing 50 of 50 cities

All Cities

City	Country	US AQI	Level	Dominant	PM2.5	Air Score	Breathability
Toronto	Canada	33	Good	O3	3.2	94.5	92.2
Chiang Mai	Thailand	43	Good	O3	4.2	94.3	92.1
Auckland	New Zealand	23	Good	PM2.5	5.8	93.7	91.5
Rome	Italy	24	Good	O3	4.6	93.7	91.2
Bali (Denpasar)	Indonesia	35	Good	PM2.5	6.0	93.5	91.2
New York	United States	41	Good	O3	4.7	93.1	90.2
Budapest	Hungary	27	Good	O3	5.6	92.8	90.0
Madrid	Spain	24	Good	O3	5.3	92.6	90.0
Warsaw	Poland	40	Good	O3	5.8	92.5	89.6
Buenos Aires	Argentina	42	Good	NO2	6.5	92.3	89.5
Tbilisi	Georgia	30	Good	O3	6.5	91.8	88.9
Istanbul	Turkey	40	Good	PM2.5	7.0	91.6	88.3
Melbourne	Australia	49	Good	NO2	7.4	91.3	88.0
Bangkok	Thailand	40	Good	PM2.5	7.3	91.1	87.7
Bogotá	Colombia	39	Good	PM2.5	9.6	90.6	87.2
Prague	Czech Republic	40	Good	PM2.5	9.6	89.1	85.1
São Paulo	Brazil	54	Moderate	NO2	6.7	88.8	85.1
Medellín	Colombia	29	Good	PM2.5	11.4	88.6	84.3
Mumbai	India	39	Good	PM2.5	10.5	88.5	84.1
Amsterdam	Netherlands	52	Moderate	PM2.5	10.6	88.3	84.4
Berlin	Germany	36	Good	PM2.5	10.8	87.9	83.5
Osaka	Japan	49	Good	PM2.5	11.4	86.9	82.1
Chicago	United States	37	Good	PM2.5	11.7	86.6	81.2
Lima	Peru	57	Moderate	PM2.5	12.6	86.5	83.9
Paris	France	38	Good	PM2.5	11.5	86.2	81.3
Lagos	Nigeria	58	Moderate	PM2.5	16.8	85.0	79.1
London	United Kingdom	44	Good	PM2.5	14.4	84.7	79.7
Casablanca	Morocco	76	Moderate	PM2.5	18.2	83.5	78.4
Nairobi	Kenya	52	Moderate	PM2.5	16.4	83.3	78.7
Shanghai	China	75	Moderate	NO2	13.9	82.8	76.2
Los Angeles	United States	78	Moderate	PM2.5	18.2	81.8	75.2
Kuala Lumpur	Malaysia	94	Moderate	PM2.5	18.4	81.0	73.9
Lisbon	Portugal	53	Moderate	PM2.5	18.6	80.6	74.1
Cairo	Egypt	66	Moderate	PM2.5	17.0	78.5	74.0
Sydney	Australia	56	Moderate	PM2.5	21.9	78.2	70.2
Manila	Philippines	72	Moderate	PM2.5	21.7	78.0	69.2
Ho Chi Minh City	Vietnam	102	Unhealthy for Sensitive Groups	PM2.5	26.9	73.9	63.4
Taipei	Taiwan	102	Unhealthy for Sensitive Groups	PM2.5	28.2	72.7	62.6
Jakarta	Indonesia	126	Unhealthy for Sensitive Groups	PM2.5	30.4	71.1	60.5
Da Nang	Vietnam	211	Very Unhealthy	PM2.5	31.0	68.7	55.4
Tokyo	Japan	77	Moderate	PM2.5	31.2	67.8	56.6
Singapore	Singapore	82	Moderate	NO2	26.6	66.7	55.3
Mexico City	Mexico	75	Moderate	PM2.5	37.5	64.9	51.5
Seoul	South Korea	102	Unhealthy for Sensitive Groups	PM2.5	36.7	64.8	52.1
Johannesburg	South Africa	166	Unhealthy	PM2.5	38.0	60.8	49.7
Dubai	UAE	115	Unhealthy for Sensitive Groups	PM2.5	44.5	56.7	42.0
Beijing	China	167	Unhealthy	PM2.5	56.8	47.7	31.2
Santiago	Chile	163	Unhealthy	PM2.5	74.5	35.2	11.2
Delhi	India	633	Hazardous	PM10	98.7	0.0	0.0
Riyadh	Saudi Arabia	1460	Hazardous	PM10	109.4	0.0	0.0

About Our Scores

Air Quality Score (0-100)

Composite score based on AQI level and pollutant concentrations. Higher = cleaner air. Combines multiple pollutant readings into a single quality metric.

Breathability Score (0-100)

Measures how comfortable outdoor air is for breathing. Factors in PM2.5, O3, and NO2 levels relative to health guidelines. Higher = easier breathing.

AQI Scale Reference

AQI Range	Level	Health Implication
0-50	Good	Air quality is satisfactory
51-100	Moderate	Acceptable for most people
101-150	Unhealthy for Sensitive Groups	Sensitive individuals should limit outdoor exertion
151-200	Unhealthy	Everyone may experience health effects
201-300	Very Unhealthy	Health alert: significant risk
301-500	Hazardous	Emergency conditions