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INDIA GATE MORNING
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Chronic respiratory stress, degraded cognitive performance, and rising public-health burden across schools, homes, and workplaces.
Air Quality Is No Longer an Outdoor Metric
Our cities air crisis is no longer only about emissions. It is about what our buildings are made of, how they behave, and how they interact with the city’s climate and pollution cycles.
What Is Air Really Made Of?
Under natural, clean conditions, air is composed of:
PM2.5 (Fine inhalable particles, <2.5 microns)
PM10 (Coarse dust, <10 microns)
Sulfur Dioxide (SO₂)
Nitrogen Dioxide (NO₂)
Carbon Monoxide (CO)
Ground-level Ozone (O₃)
Volatile Organic Compounds
Ammonia (NH₃)
78%
NITROGEN
OXYGEN
Argon & trace gases
Carbon Dioxide (CO₂)
21%
1%
0.04%
AQI is designed to communicate ambient outdoor pollution, but in dense cities, now it reflects a much deeper systems failure.
AQI aggregates PM₂.₅, PM₁₀, NO₂, SO₂, CO, and O₃, pollutants that infiltrate, accumulate, or are generated inside our cities.
This is no longer “natural air.”
It is chemically altered air.
Long-Term Airborne Inflammatory Stressors
PM 2.5
PM 10
NO₂
SO₂
CO
o3
AQI appears at the city scale but its health impacts occur at the building scale through the materials we live with every day.
The air crisis is, fundamentally, a materials and building-science crisis.
The Healthy Buildings Lab works to decode exposure pathways, study material–pollutant interactions, and develop solutions that directly address the drivers of poor indoor air quality in polluted urban environments
We advance a built environment where human health and ecological integrity are the foundation of every design decision.
© 2025 Healthy Building Labs. All Rights Reserved.
Healthy Building Lab
An Initiative in Urban Air & Building Science
We are dedicated to a world in which human and environmental health are the foundation of all design and construction decisions.
The Healthy Buildings Lab works to decode exposure pathways, study material–pollutant interactions, and develop solutions that directly address the drivers of poor indoor air quality in polluted urban environments
This platform is designed for public awareness and scientific communication.
The information presented focuses on environmental health, air quality, and building-science research, not product promotion.
Powered by data from environmental science, material chemistry, and urban health research.
