Saskia Comess - Health and Air Pollutions
April 01, 2019Information
Over 90 percent of the world's population breathes toxic air. But what are we talking about when we say toxic air? and where do they come from?
- 00:16Over 90 percent of the world's population breathes toxic
- 00:20air. But what are we talking about when we say toxic air?
- 00:24One of the most critical air pollutants is particulate matter
- 00:27or PM. PM Is a complex mixture
- 00:31of solids.
- 00:34Gases.
- 00:37Liquids.
- 00:45[blender] But where exactly does PM come from?
- 00:50Some PM is directly admitted from human activities like industrial
- 00:53processes power plants and fossil fuel combustion.
- 00:57Others formed from natural sources including windblown dust
- 01:00and wildfires. PM2.5 can penetrate deep into the lungs,
- 01:04respiratory tract and bloodstream.
- 01:06On a global scale the simple act of breathing is killing seven
- 01:10million people a year and harming billions more due
- 01:14to declining smoking rates.
- 01:15Air pollution now causes more deaths annually than