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Historical and Recent Inputs of Anthropogenic Organic Compounds to San Francisco Bay: Prospects for the Future
Wilfred E. Pereira, Frances D. Hostettler, Samuel N. Luoma, Alexander Van Geen, Christopher C. Fuller, and Roberto J. Anima
Graph 1 || Graph 2 || Graph 3

Upcore decreases in ratios indicate an increase in the input of PAHs from combustion of fossil fuels around the Bay Area.

Ratio of Methylphenanthrenes/Phenanthrene

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