Atmospheric fate and transport of dioxins: local impacts.

摘要: We conducted model simulations of the atmospheric fate and transport PCDD/F to assess fraction emitted that would deposit within 100 km from source. considered eight major categories emission sources six different locations, cover a wide range source characteristics, congener profiles particle size distributions, meteorological conditions terrain configurations. These results suggest for have tall stacks and/or high plume rise (e.g., copper smelters, cement kilns, sinter plants), only small emissions is deposited locally (typically, less than 10% km). Other such as municipal solid waste incinerators, medical incinerators diesel trucks lead greater being locally; nevertheless, majority their tends be transported beyond km. Although local impacts may need addressed these latter categories, it appears long-range potential all categories. Sensitivity studies were investigate effect various key inputs on simulation results. an advanced dispersion should used cases where present some concerns because are very sensitive treatment dispersion. Also, essential obtain accurate characterizations distribution particulate dry deposition flux distribution.