Nanjing vs Johannesburg

Live air quality comparison. Nanjing has cleaner air right now.

China
Nanjing
115
Unhealthy for Sensitive Groups
South Africa
Johannesburg
172
Unhealthy
MetricNanjingJohannesburg
AQI115172
PM2.555.9 μg/m³145.3 μg/m³
PM1055.9 μg/m³146.7 μg/m³
Ozone0 ppb23 ppb
NO259.7 ppb74 ppb

Lower values mean cleaner air. Updated hourly. Sources: OpenAQ, Open-Meteo.