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This paper describes lake sediment spheroidal carbonaceous particle (SCP) profiles from Laguna Chica San Pedro, located in the Biobío Region, Chile (36° 51′ S, 73° 05′ W). The earliest presence of SCPs was found at 16cm depth, corresponding to the 1915–1937 period, at the very onset of industrial activities in the study area. No SCPs were found at lower depths. SCP concentrations in Laguna Chica San...
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