title

ارزیابی کیفیت میکروبی آب خروجی از دستگاه های آب شیرین کن خانگی با روش شمارش بشقابی هتروتروفیک.

یاری, احمدرضا and محمدی, محمدجواد and گراوندی, سحر and دوستی, زهره and علیزاده متبوع, سودابه and ارسنگ جنگ, شهرام and نظری, شهرام (1397) ارزیابی کیفیت میکروبی آب خروجی از دستگاه های آب شیرین کن خانگی با روش شمارش بشقابی هتروتروفیک. Journal of Water and Health ــ 16 (6). pp. 930-937. شاپا 1477-8920

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Title

Assessment of microbial quality of household water output from desalination systems by the heterotrophic plate count method

English Abstract

Point-of-use household water desalination systems (HWDSs) are becoming popular in Iran because of the deterioration of drinking water. This study aimed to determine the microbial quality of output water from HWDSs in Qom, Iran by using the heterotrophic plate count (HPC) method. Samples of input and output water from 30 HWDSs were collected over a six-month period. Heterotrophic bacteria were tested using the pour plate technique. At the first sampling stage, the HPC level in 23% of samples exceeded the 500 CFU/ml threshold level. On average, for 50% of samples, the HPC level of input samples was 0–10 CFU/ml, for 42% it was 10–100 CFU/ml and for 8% it was 100–500 CFU/ml. For output samples, for 25%, the level of HPC was 0–10 CFU/ml, for 43% it was 10–100 CFU/ml, for 24% it was 100–500 CFU/ml and for 8% it exceeded 500 CFU/ml. For total coliforms the most probable number test was positive for the first and third stages of sampling (3% input samples). The comparison of the averages with national standard values shows that in some cases, the contamination of output water from HWDSs in the city of Qom has been above the standard values.

Item Type:Article
زبان سند : انگلیسی
نویسنده اول :احمدرضا یاری
نویسنده :محمدجواد محمدی
نویسنده :سحر گراوندی
نویسنده :زهره دوستی
نویسنده :سودابه علیزاده متبوع
نویسنده :شهرام ارسنگ جنگ
نویسنده مسئول :شهرام نظری
Additional Information:IF(2018):1.683 Indexed in: ISI, Pubmed/Medline, Scopus, Index medicus, Google scholar, Embase
Uncontrolled Keywords:آب آشامیدنی، سیستم های آب شیرین کن، باکتری های هتروتروفیک، کیفیت میکروبی
کلیدواژه ها (انگلیسی):drinking-water, desalination systems, heterotrophic bacteria, toxic microbial quality
Subjects:WA Public Health > WA 30 Social, Economic, and Environmental factor in public health
WA Public Health > WA 30 Social, Economic, and Environmental factor in public health

WA Public Health
WA Public Health
Divisions:Faculty of Health > Department of Environmental health
ID Code:11164
Deposited By: MR Shahram Nazari
Deposited On:05 Apr 1398 10:17
Last Modified:20 Apr 1398 10:28

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