1. GROUND WATER CONTAMINATION SUMMARY

2. 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

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

4. EXAMPLE
BIOPLUME III

5. AIR POLLUTION

7. 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

8. Acid Deposition in Asia

9. Acid Deposition in Asia

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