Measurements and models of greenhouse gas emissions and pollutant fluxes in the Baltimore/Washington Area.
Abstract
Building on the lifetime accomplishments of Donald H. Stedman, we present results from a combined measurement and modeling program to quantify the flux of pollutants, both short and long lived, from the Baltimore/Washington area. Urban areas are a dominant and growing source of emissions leading to photochemical smog and climate forcing, but the rate of release of species such as CO, NOx, SO2, CO2, and CH4 remains uncertain. This presentation will summarize recent results that estimate the flux of these species, the relative importance of various sources, and the trends. NOx, CO, VOC's and SO2 have demonstrably improved in recent years, but such trends are not clear for greenhouse gases. New understanding of relative contribution from oil and gas operations, electricity generation, and mobile sources is presented and the role of outliers in the distribution of sources or "gross emitters" is discussed.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2016
- Bibcode:
- 2016AGUFM.A13J..01D
- Keywords:
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- 0312 Air/sea constituent fluxes;
- ATMOSPHERIC COMPOSITION AND STRUCTUREDE: 0345 Pollution: urban and regional;
- ATMOSPHERIC COMPOSITION AND STRUCTUREDE: 0365 Troposphere: composition and chemistry;
- ATMOSPHERIC COMPOSITION AND STRUCTUREDE: 0428 Carbon cycling;
- BIOGEOSCIENCES