ABSTRACT
Background: Providing Safe drinking water is a prime concerninany community. This analytical study was carried out to evaluate the microbial quality of drinking water in rural areas of northeastern Iran
Methods: The water microbial quality was determined in all villages [a population of 53047 people], in 3 rounds and based on 3 measurements, i.e. Total Coliform, Fecal Coliform, and Heterotrophic Plate Count. Census method was used for studying water distribution system too
Results: Results of heterotrophic plate counts of over 500 were positive in 19 [19.8%] of the villages.Total coliforms were also detected in 37 [38.5%] of the villages. Water in villages receiving the services of Water and Wastewater Company had significantly lower levels of total and fecal coliforms contamination [p<0.05] compared to villages deprived of these services. In 4.3% of the villages where the Company delivered services, the HPC? 500 results were positive, while this percentage rose to 24.7% in other villages [ p = 0.03]
Conclusion: Comparison of the results of this study with guidelines published by WHO, regarding the microbial quality of water in 2006, indicated that the microbial quality of the drinking water in rural areas in Maraveh Tappeh is desirable but lower than the Iranian standard
ABSTRACT
Given the importance of healthy vegetables, the present study was conducted to determine parasitic infection of vegetable consumed in Shahroud. This cross-sectional study has been conducted on 92 samples of various vegetables collected from 16 vegetable growing farms and 1 vegetable process workshop. Sixty two percent of tested vegetables lacked parasites and the highest amount of parasites observed [34.78%] was related to Giardia lamblia. A significant relationship was observed between parasite and having toilets in the farms as well as the extent of farms. Safety of fertilizers consumed by farms and healthy fruits can have an effective role in reducing the parasitic infections.