While authorities rely on million-dollar monitoring stations, ordinary citizens are now tracking deadly air pollutants with $100 sensors. The fight for breathable air has changed forever.
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Air Quality Fundamentals: Pollutants, Monitoring, and Protection
That “fresh air” you’re breathing? It’s packed with PM2.5, ozone, and toxins from cars and factories. Learn how the AQI scale exposes dangerous air conditions before your lungs pay the price.