الفهرس 
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Abstract
El-Obour City is one of the new communities in Egypt established in 1990. Erupted seepage water at El-Obour City introduced suitable breeding places for mosquitoes and was associated with serious environmental and health risk. Mosquito distribution in El-Obour City was correlated with the ecological parameters of the erupted seepage water. The effect of erupted seepage water on the mean developmental rate of Culex pipiens was studied under laboratory conditions. The insecticide susceptibility status in collected mosquito larvae was also investigated using the WHO insecticide susceptibility test kit. Environmental management approaches were applied in order to eliminate mosquito breeding sites. Geographic information systems were used to investigate mosquito threat in El-Obour City. Only three mosquito species were reported at El-Obour City namely; Culex pipiens was the dominant species (51.7%), followed by Culiseta longiareolata (46.5%), and Cx. perexiguus (1.8%). The total number of collected mosquitoes showed positive correlation with the amount of dissolved oxygen in the water body (r=0.659; p<0.001) and weak negative correlation with the size of the water body (r=-0.433; p=0.013). The presence of Cx. pipiens larvae showed strong positive correlation with the amount of dissolved oxygen in the water body (r = 0.765; p< 0.001) and weak negative correlation with the size of the water body (r = -0.384; p= 0.015) and the presence of predators (r=-0.405; p=0.021). The presence of Culiseta longiareolata was weakly positively correlated with the percentage of floating plants on the water surface (r=0.439; p=0.012); the depth of the water body (r=0.375; p=0.034); dissolved oxygen (r = 0.587; p< 0.001) and the presence of predators (r= 0.384; p= 0.030). The presence of Culiseta longiareolata showed weak negative correlation with the electrical conductivity in water (r = -0.467; p = 0.0028) and the percentage of shade covering the water body (r=-0.350; p=0.049). In general, field collected mosquitoes showed significantly shorter life cycle than laboratory reared colony. Field collected mosquitoes were susceptible to fenitrothion and temephos. All water outcrops were eliminated through leveling of low lands by derived sands and construction waste. In addition, lowering the water table by artificial suction was also applied in order to control future seepage water outcropping. The geographic information system revealed that 45% of El-Obour City is facing mosquito threat. The mosquito threat included areas of lower elevation in the city. The current situation at El-Obour City is providing a perfect example for the need of coordination between health and engineering efforts when designing new communities in order to achieve sustainable development.