All Rio de Janeiro articles
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NewsAlgae confirmed as culprit in Rio green pool saga
Accidental addition of hydrogen peroxide destroyed hypochlorite allowing algae to thrive
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CareersThe anti-doping expert
Francisco Radler, the man in charge of the Rio 2016 Olympics anti-doping operation, reveals how his team has prepared
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PodcastSpilanthol
It’s the active molecule in the plant known as electric daisies or the toothache plant but it might also make your skin smoother