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Electromagnetic radiation spectrum
Atmospheric photochemistry
A smoggy day in Los Angeles

We use photochemistry to make nylon and vitamins and to help babies to
survive. Sunlight interacts with the atmosphere, cells of plants and the
surface of our skin. Some of these reactions are vital, some are dangerous,
and some we would like to harness to create a cleaner, safer world

HALF of all new-born babies become jaundiced because their livers cannot
cope with a bodily waste product called bilirubin which comes from the
breakdown of red blood cells. Too much bilirubin can cause brain damage. In
the womb, bilirubin is removed across the placenta, but newly born babies have
to…

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