Scientists at the Univ. of East Anglia have identified four new man-made gases in the atmosphere – all of which are contributing to the destruction of the ozone layer. New research, published in the journal Nature Geoscience, reveals that more than 74,000 tons of three new chlorofluorocarbons (CFCs) and one new hydrochlorofluorocarbon (HCFC) have been released into the atmosphere.
Scientists made the discovery by comparing today’s air samples with air trapped in polar firn snow – which provides a century-old natural archive of the atmosphere. They also looked at air collected between 1978 and 2012 in unpolluted Tasmania.
Read more: http://www.laboratoryequipment.com/news/2014/03/study-reveals-four-new-man-made-gases-atmosphere