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The Conversation USA

Millions rely on cheap cloth masks that may provide little protection against deadly air pollution

  • Written by Richard E. Peltier, Associate Professor of Environmental Health Sciences, University of Massachusetts Amherst

Anyone who has stepped off an airplane in one of the major cities of the developing world has encountered profound and noxious air pollution. In New Delhi, Jakarta, Accra, Kathmandu and many other cities, diesel exhaust and burning garbage foul the air. The most serious concern is particulate matter (PM) – microscopic particles, much...

Read more: Millions rely on cheap cloth masks that may provide little protection against deadly air pollution

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