Child Cyclist With Helmet And Anti-pollution Mask #1
by Science Photo Library
Title
Child Cyclist With Helmet And Anti-pollution Mask #1
Artist
Science Photo Library
Medium
Photograph - Photograph
Description
Air pollution mask. Seven-year- old boy with a bicycle wearing a helmet and an anti-pollution mask. The mask over his mouth and nose is to protect him against the air pollution in a city street. The main source of air pollution in cities is from car exhausts. Cars produce poisonous gases such as nitrogen oxides, sulphur oxides, carbon monoxide and ozone. They also emit unburnt hydrocarbons, lead fumes and partially burnt, microscopic particles of soot. Face masks like the one shown here may filter out the larger particles of soot but may not provide sufficient protection against the other pollutants.
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February 21st, 2021
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