How people care about air pollution?

Lessons from History

  • 2,500 year-old records reveal concern for air pollution
  • During the Industrial Revolution cities were choked with smoke 
  • Over time, we’ve learned ways to cut pollution, but the world is rapidly populating, urbanizing, and developing
  • Lessons from Science

    In the past 50 years, studies made by universities, the World Health Organization, governments, NGOs, and other groups of scientists on the topic of the health effects of air pollution all contain the same advice: we should reduce exposure to PM2.5.

    What is PM2.5?

    PM2.5 is particulate matter that is 2.5 microns in size.

    It’s generated by everyday human activity like cleaning or taking a plane ride, and also by nature from forest fires or volcanos. T

    o give you perspective, a hair strand is about 60 microns wide, so the particles we’re talking about are 25 times smaller!  

    The job of protecting your lungs from PM2.5 is a simple one, but you have to do it!

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