Combustion as the Principal Source of Carbonaceous Aerosol in the Ohio River Valley |
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Authors: | James J Huntzicker Emily K Heyerdahl Stephen R McDow John A Rau Wayne H Griest Carolyn S MacDougall |
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Institution: | 1. Oregon Graduate Center , Beaverton , Oregon , USA;2. Oak Ridge National Laboratory , Oak Ridge , Tennessee , USA |
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Abstract: | Organic and elemental carbon and a number of carboxylic acids and n-alkanes were measured in aerosol samples collected at three sites in the Ohio River Valley between October 1980 and August 1981. Approximately 100 filters were analyzed for organic and elemental carbon for each site. For the 11-month period organic and elemental carbon comprised about 19 percent of the total aerosol mass with about two-thirds of the carbon as organic. Regression analysis showed that the principal source of organic carbon was combustion. The measurements of the specific organic compounds indicated a weak biogenic component to the organic aerosol. |
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