Abstract |
In December 2007, the U.S. EPA approved a regional total maximum daily load (TMDL) for mercury that was submitted by NEIWPCC and its member states. For the NEIWPCC states to meet this regional TMDL, atmospheric mercury deposition in the region must be reduced by at least 98 percent relative to 1998 levels. In order to help achieve the regional mercury TMDL, there is a need to identify and summarize available information on the sources of anthropogenic mercury being deposited in the NEIWPCC states and the NEIWPCC region. In this report, NESCAUM draws upon modeling studies using the Regional Modeling System for Aerosols and Deposition (REMSAD) to help identify sources and source regions in the U.S. contributing to atmospheric mercury deposition in the Northeast. |