AirQualityHub
Current air quality for 50 major cities worldwide. Track PM2.5, PM10, ozone, NO2, SO2 and CO with the US AQI.
Most Polluted Cities (Live)
Ranked by current PM2.5 concentration. Hourly modelled values from the Open-Meteo Air Quality API (Copernicus CAMS), refreshed every 15 minutes; latest hour 2026-10-06 21:00 UTC.
1
JakartaIndonesia
159.7 µg/m³
2
DhakaBangladesh
132.2 µg/m³
3
Kuala LumpurMalaysia
128.1 µg/m³
4
KolkataIndia
105.2 µg/m³
5
ShanghaiChina
98 µg/m³
6
TehranIran
94.8 µg/m³
7
ChengduChina
91.3 µg/m³
8
WuhanChina
91 µg/m³
9
BeijingChina
85.4 µg/m³
10
JohannesburgSouth Africa
81.7 µg/m³
11
SingaporeSingapore
67.8 µg/m³
12
RiyadhSaudi Arabia
65.7 µg/m³
13
WarsawPoland
65 µg/m³
14
New DelhiIndia
57.2 µg/m³
15
LahorePakistan
48.7 µg/m³
16
KathmanduNepal
46.3 µg/m³
17
LagosNigeria
44 µg/m³
18
HanoiVietnam
41.4 µg/m³
19
BucharestRomania
38.5 µg/m³
20
Ho Chi Minh CityVietnam
32.9 µg/m³
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Latest Blog
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PM2.5 kills an estimated 4.2 million people prematurely every year. These particles, smaller than 2.5 micrometers, bypass the body’s natural defenses ...
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New Delhi, Lahore, Dhaka, and Baghdad consistently rank among the most polluted cities globally. Delhi’s winter smog regularly pushes PM2.5 above 300 ...
How to Read the Air Quality Index (AQI)
The Air Quality Index converts raw pollutant concentrations into a simple 0–500 scale, with six color-coded categories. Green (0–50) means air quality...