20151111

Author : Yue He, Gan-Lin Zhang
Year : 2009
Title : Historical record of black carbon in urban soils and its environmental implications
Journal : Environmental Pollution
Comment : The vertical distribution of BC in soil is suggested to reflect the history of BC formation from burning of biomass and/or fossil fuel. BC in the surface layer of soils was mainly from traffic emission (especially from diesel vehicles). In contrast, in cultural layers BC was formed from historical coal use. The contents of BC and the ratio of BC/OC may reflect different human activities and pollution sources in the contrasting urban zones.

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The concurrent decline of soil lead and children’s blood lead in New Orleans