How Chemistry Fights Air Pollution

Catalytic converters in cars use chemistry to turn toxic gases into safer emissions.
Scrubbers in smokestacks neutralize sulfur dioxide with limestone or other bases.
Photocatalysts break down pollutants in sunlight, cleaning the air naturally.
Chemistry helps design fuels that burn cleaner and release fewer byproducts.
Activated carbon filters trap harmful gases and volatile organic compounds (VOCs).
Ozone-depleting substances have been replaced with safer chemical alternatives.
Sensors based on chemical reactions detect pollutants at parts-per-billion levels.
Green chemistry reduces pollution by designing safer industrial processes from the start.
Air-cleaning coatings on buildings use chemical reactions to capture nitrogen oxides.
Chemistry turns knowledge into action, protecting both the atmosphere and human health.