Special Report No. 04-01: Review and Analysis of Long-Range Transport and Deposition Models

Atmospheric deposition can be an important pathway for inputs of potentially deleterious pollutants, such as air toxics and nitrogen compounds, to surface water. These pollutants are often transported over large distances before eventually being deposited. To determine the contribution of atmospheric deposition to the Total Maximum Daily Loads (TMDLs) for water bodies of interest, it may be necessary to apply models that simulate the atmospheric fate (transport, transformation, and deposition) of these chemicals.