P041 Impacts of Vehicle Activity on Airborne Particle Deposition to Lake Tahoe.

This study addresses the need to accurately estimate the impact of vehicle miles traveled on PM loading to the lake. This will be done by integrating the results of previous and ongoing research, summarizing the location and timing of road dust PM emissions in the basin, summarizing vehicle classes operating on different road types in the basin, summarizing the amount of suspended material that deposits close to the roadway, analyzing the link between road location and the material transported over the lake, assessing the impact of the number and location of trips on lake water clarity, and reconciling estimates of atmospheric deposition fluxes to the lake with prior measurements.