GROUND WATER CONTAMINATION SUMMARY

GENERAL METHODOLOGY FOR GROUNDWATER MODELING Identify and the solve the hydraulic problem Identify the chemical and physical processes involving the contaminants Model the contaminant physical and chemical processes Use physical observations to calibrate the models Investigate various scenarios and chose the best solution

MATHEMATICAL FORMULATION OF THE SIMULATION MODELS Pollutant advection dispersion reaction equation Steady state ground water flow equation

EXAMPLE BIOPLUME III

AIR POLLUTION

SCOPE OF AIR POLLUTION MODELING Assessment and forecasting of air quality indices air quality surveillance air quality research air quality management Climate modeling climate understanding forecasting

Acid Deposition in Asia

Acid Deposition in Asia

STRATOSPHERIC CHEMISTRY O2 + h ( < 220 nm) --> 2 O O + O2 + M --> O3 + M O + O3 --> 2 O2 O3 + h --> O + O2 CFC = chloroflurocarbons