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Fuzzy Framework of Health Risk Assessment of Nitrates in Groundwater

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Document pages: 16 pages

Abstract: This study provides a characterization of potential health risk associated withgroundwater Nitrates in Akkar plain in Taturs governorate in Syria. Six villageswere chosen for Nitrates analysis in artesian wells. The results show thatNitrates concentrations are above the natural level but still below the level ofwater potability and measures have to be taken to prevent Nitrates accumulationin groundwater. Comparing Nitrates dose in young children diet withreference dose and calculating the hazard index give the noncarcinogenic risk(Methemoglobinemia). Carcinogenic risk of drinking well waters with Nitratesis calculated in a probabilistic-fuzzy framework. The role of Bacterialcontamination of water and its association with Nitrates pollution is discussedand we found that the two pollutants are not correlated in Akkar plain, becauseNitrates come principally from fertilizers in this area while fecal coliformscome from landfill leachates and untreated wastewaters. Nitrates andFC play associated roles in gastro-intestinal disturbance and Methemoglobinemia.

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