| http://www.w3.org/ns/prov#value | - ult of the combination of a lack of wind and the burning of wood, which is more prevalent than usual because of the high price of domestic heating fuel, Gerassopoulos said.The smog contains sulphur dioxide, carbon monoxide, and other carcinogens, he said.The economic crisis stalking Greece since 2010 initially caused pollution to dip because of a drop in automobile traffic.
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