"Development of an Atmospheric Dispersion Model for Exposure and Risk Assessment (AIST-ADMER)" 

Haruyuki Higashino¹, Kouji Kitabayasho², Kazuaki Mita¹, Kazuya Inoue¹, Yoshotaka Yonezawa¹, Junko Nakanishi¹

¹National Institute of Advanced Industrial Science and Technology
²Kogakuin University

SETAC North America 23rd Annual Meeting (Salt Lake City, USA 2002/11/20)

---

Abstract

Estimation of the long-term average concentration in a comparatively wide region into which substances are continuously discharged should be required in the environmental assessment of chemical substances. An Atmospheric Dispersion Model for Exposure and Risk Assessment (AIST-ADMER), which gives long-term average atmospheric concentrations of chemicals has been developed. 

The model validation was performed for nitrogen oxides and the other some toxic chemicals (trichloroethylene etc.) concentrations in the atmosphere by comparing calculated values with observed values from a monitoring survey conducted in the Kanto region. Good agreement with the measured values was obtained for the monthly average concentration of chemicals. 

The model is capable of estimating the long-term (such as monthly) average distribution of concentration of chemicals in a wide flat area such as the Kanto plain. AIST-ADMER has a MS-Windows graphic user interface which may help performing simulations not only for experts of simulation model but also for risk assessors working for governments or enterprises. The risk assessment which has to consider spatiotemporal distributions will make progress by using AIST-ADMER.

Keywords

dispersion, model, chemicals, exposure, risk assessment