There are all kinds of pollutants in the air around us.
Outdoors, these can be washed away through the falling rain, and the oxidation that happens after ultraviolet light from the Sun interacts withAs a new study shows, there's also some oxidation going on indoors too: the chemical cleaning that occurs via these hydroxyl radicals – short-lived reactive species whose job is to oxidize other molecules – happens through a combination of ozone leaking in from the outside, and from the oxidation fields that we create around ourselves.
"The discovery that we humans are not only a source of reactive chemicals, but we are also able to transform these chemicals ourselves was very surprising to us,"from the Institute of Atmospheric Sciences and Climate in Italy. Through a combination of computational fluid dynamics modeling and actual air measurements , it became clear that OH radicals were present, abundant – and forming around the human beings.
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