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|Title||Microbiological Water Quality Assessment in Gaza Strip|
Gaza Strip is located in a semi-arid region where deteriorating water quantity and quality are the main features. Attention has been paid on the assessment of chemical characteristics of groundwater in the Gaza Strip, while microbiological contamination is rarely investigated. Microbial quality of water was deteriorated for both water wells and networks in Gaza Strip during the period from 1999 to 2003. In addition to questionnaire interview (n=150), the current study examined the total and fecal coliforms contamination in water wells and distribution networks in Gaza Strip at monthly basis throughout the year 2003. The level of contamination was found to exceed that of WHO limit for both water wells and networks. However, the contamination percentages in networks were higher than that in wells. Giardiasis and diarrheal diseases showed positive strong correlations with fecal coliform contamination in water networks (r=0.8 and r=0.7, respectively) whereas a positive weak correlation was exhibited by hepatitis A (r=0.3). The numbers of interviewed people who mentioned to depend on municipal water and on desalinated and home filtered water for drinking were 17 (11.3%) and 133 (88.7%), respectively. Out of 17 people who used to drink municipal water, a total of 12 (70.6%) had self reported waterborne diseases whereas 80 (60.0%) out of those who use to drink desalinated and home filtered water had such diseases (OR=1.6). The highest percentage of self reported diseases incidence 24 (77.4%) was found among persons who claimed that the age of municipal water networks is 5 years (OR=3.43). For sewage networks, the highest percentage of self reported diseases incidence 37 (62.7%) was found among persons who claimed that the age of sewage networks is more than 5 years (OR=1.29). The number of self reported infected persons 57 (77.0%) who reported the interruption of water supply for 2-3 days was the highest (OR=3.35). Self reported diseases incidence by sewage flood were found in 59 (69.4%) of questioned people inGazaCity(OR=2.2).
|Publisher||the islamic university|
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