The process of environmental risk assessment is determined by the example of glyphosate. To identify hazard sources objectively and evaluate hazard of various accidents on atmospheric environmental risk assessment, based on Gaussian diffusion model and rigid mathematics, a modeling system was developed to identify harm and estimate impaired region of accident and impaired duration of accident in atmospheric environment. These formulae are easy to use with exact results by the comparision of Gaussian diffusion model. This modeling system has the same conditions as Gaussian diffusion model, and can calculate any concentration isoline' s rigor time-space location and specific points location. Risk value is calculate according to possibity, atmospheric condition, density of population, LD5o-... |