Real Estate Air Quality Intelligence for Cities Worldwide
Properties near major roads command 15-25% premium but experience 2.5x higher PM2.5 levels than properties 1km away.
11th floor apartments still within thermal inversion layer (50-100m). Height provides minimal protection during winter.
December 2025: PM2.5 peaked at 207 µg/m³ (14x WHO guideline). "Severe" AQI category common in high-value areas.
For 70+ residents: Cardiovascular risk increases exponentially with PM2.5 >150 µg/m³. Location choice is life-critical.
TrueNorth is designed to scale globally. Currently showing Kolkata, India.
Kolkata, India
20 properties • 5 monitoring stations
Real-time pollution data
More Indian Cities
Mumbai • Delhi • Bangalore
Chennai • Pune • Hyderabad
Global Cities
New York • London • Singapore
Toronto • Sydney • Dubai