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A GIS-based modeling of environmental health risks in populated areas of Port-au-prince, Haiti

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par Myrtho Joseph
University of Arizona - Master in Natural Resources Information System 1987
  

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4.4.8 Pollution from the hospitals

Buffers of different sizes were applied in relation to the size and the level of care used at the hospitals. This information was gathered from health professionals accustomed to these facilities. The hazards they represent account for more than 7% of the study area, of which only 30% was considered at high to very high risk (Figure 19). This low percentage was expected because of the small buffer applied around three out of 5 hospitals. Nonetheless the high rate of low and moderate risk levels does not mean absence of risk, yet a direct measurement of pollution concentration within this delineation is required.

Figure 19: Neighborhood pollution from Hospitals

4.4.9 Pollution from the cemetery

This hazard represents the smallest in terms of area extent: 4% of the entire area. High and very high risks were identified in less than 2% of the study area (Figure 20). However, as mentioned earlier, it is believed that a reasonable extension of the buffer westward would result in a greater physical incidence. We assumed that this part was partially covered in the pollution from water bodies, traffic and waste pollution. An inspection of these maps at the west side of the cemetery confirms this hypothesis.

Figure 20: Neighborhood pollution from the central cemetery

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