Tar sandstone from the Monterey Formation of Miocene age; southern California, USA. Photo © Wikimedia contributor James St. John
Obviously we never thought that extracting oil from tar sands was ecologically friendly, but a new study published in Nature has found that, in Canada (but presumably everywhere else too), the process releases much more fine particle air pollution than previously believed. Bobby Magill reports for Scientific American:
In one of the first studies of its kind, scientists have found that tar sands production in Canada is one of North America’s largest sources of secondary organic aerosols—air pollutants that affect the climate, cloud formation and public health.
The study, published Wednesday in the journal Nature, showed that the production of tar sands and other heavy oil—thick, highly viscous crude oil that is difficult to produce—are a major source of aerosols, a component of fine particle air pollution, which can affect regional weather patterns and increase the risk of lung and heart disease.
Organikos 