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Figure 73 . Evaluation of River Pollution Status
4.9.7 Evaluation of Industrial Pollution Status
The systems perform the spatial analysis for distribution of polluted industries as
shown in Figure 74. According to the analysis, some industries marked by red balls,
while the white balls represent unpolluted industries.
Figure 74 . Evaluation of the Industrial Pollution Status
4.9.8 Searching The Potential Polluted Industries
By using spatial analysis, the system can do the searching of the potential polluted industries. It is called potential, because many factors cause the decrease of river water
102 quality. Therefore, further investigations are needed to decide whether the industry is
polluted or not. The concept of spatial analysis is very simple. Only industries located in a certain
distance from the polluted river with an altitude higher than the monitoring site are
indicated as the potential polluted industries Figure 75.
Figure 75 . Input The Predicted of Polluted Area Radius in Km’s
For instance as shown in Figure 75, the searching of potential polluted industries at a
radius of 5 km from the monitoring site position resulted in five potential polluted
industries Figure 76.
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Figure 76 . Spatial Analysis of Industry around polluted river 5 km’s
4.9.9 Distribution of BOD source
Distribution of BOD Biological Oxygen Demand by source can be approached
using distributed populations. Figure 77 shows the distribution of BOD source which is
useful for developing the environmental programs.
Figure 77
. Distributed Potential BOD’s Source
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4.9.10 Other Information Layers
Other information layers thematic maps could be shared by using Add Layer following the standard image formats or in shape files, such as land use, base maps, etc.
This stage may be useful as additional information Figure 78.
Figure 78
. Additional Information Using ”Add Layer”
4.9.11 Output Maps and Export to Shape File
Some output in spatial information format can be prepared using Map Utilities by
double clicking for each layer, for instance the result as shown in Figure 79.
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Figure 79 . Sample Maps As A Maps Explorations
After finishing layout of the maps, then it can be exported to shape file format
Figure 80. The system can provide the utility for export to shape file or image by
choosing ‘Export to shape file’ or ‘export to image’ in File Menu. These facilities are needed where the maps will be processed according to. It could be concluded that map
explorations can be continued using ArcView or other applications, following the cartographic criteria.
Figure 80
. Utility for export file to other format
4.9.12 Data Communications
