investigation of fungi in drinking water resources as a source of contamination tap water in sari, iran

نویسندگان

z yousefi department of environmental health engineering, school of public health, health sciences research center, mazandaran university of medical sciences, sari, iran

s.r. aghili department of medical mycology and parasitology, school of medicine, mazandaran university of medical sciences, sari, iran,

r ebrahimzadeh school of public health, mazandaran university of medical sciences

b salmanian faculty member of farhangian university of mazandaran, sari, iran

چکیده

background and purpose: one of the most prominent concerns for the water consumers is pathogenic microorganism contamination. wells and underground water resources are the main resources of drinking water in sari city, iran. the main objectives of the research project were to explore the distribution and frequency of mycoflora in wells and underground water resources of the city and their contamination effects on humans. materials and methods: three reservoirs and 18 wells or underground water resources were analyzed. water samples were then filtered and analyzed according to the world health organization guidelines. each filter and 0.2 ml of suspension inoculated on sda+cg media. for fungal growth, plates were incubated at 27’c for 7-10 days. the fungi were identified by standard mycological techniques. results: fungal colonies were isolated from all samples. from total of 160 fungal colonies isolated from wells water, 14 species of fungi were distinguished. rhodotorula (54.4%), monilinia (13.7%), alternaria (6.9%) were the most commonly isolated. drechslera, rhizopus, and exserohilum (0.6%) had the lowest frequency. there was no significant difference between fungal elements isolated from three major reservoirs (p>0.05). conclusion: this study revealed that resources of drinking water from an area have to monitored and if its fungal cfu be greater than a certain value, medical and health preventive measures should be taken before the water is used by human. in this context, public and private awareness should also be provided through the media, broadcasting, teachers and scholars.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Investigation of Fungi in Drinking Water Resources as a Source of Contamination Tap Water in Sari, Iran

Background and purpose: One of the most prominent concerns for the water consumers is pathogenic microorganism contamination. Wells and underground water resources are the main resources of drinking water in Sari city, Iran. The main objectives of the research project were to explore the distribution and frequency of mycoflora in wells and underground water resources of the city and their conta...

متن کامل

Natural Radioactivity of Drinking Water Resources in Arak, Iran

The activity concentrations of 235U, 232Th, 226Ra, 40K and 137Cs in ground and surface of drinking water resources in Iranian city of Arak were determined by gamma ray spectrometry with aHPGe detector setup, coaxial p type and 8192 channels MCA. The water samples differed in radioactivity content depending on their origin and place. In the ...

متن کامل

a swot analysis of the english program of a bilingual school in iran

با توجه به جایگاه زبان انگلیسی به عنوان زبانی بین المللی و با در نظر گرفتن این واقعیت که دولت ها و مسئولان آموزش و پرورش در سراسر جهان در حال حاضر احساس نیاز به ایجاد موقعیتی برای کودکان جهت یاد گیری زبان انگلیسی درسنین پایین در مدارس دو زبانه می کنند، تحقیق حاضر با استفاده از مدل swot (قوت ها، ضعف ها، فرصتها و تهدیدها) سعی در ارزیابی مدرسه ای دو زبانه در ایران را دارد. جهت انجام این تحقیق در م...

15 صفحه اول

analyzing patterns of classroom interaction in efl classrooms in iran

با به کار گیری روش گفتما ن شنا سی در تحقیق حا ضر گفتا ر میا ن آموزگا را ن و زبا ن آموزا ن در کلا سهای زبا ن انگلیسی در ایرا ن مورد بررسی قرار گرفت. ا هداف تحقیق عبا رت بودند از: الف) شنا سا ئی سا ختارهای ارتبا ط گفتا ری میا ن معلمین و زبا ن آموزا ن ب) بررسی تا ثیر نقش جنسیت دبیرا ن و زبا ن آموزان بر سا ختا رهای ارتبا ط گفتا ری میا ن آنها پ) مشخص کردن اینکه آ یا آموزگاران غا لب بر این ارتبا ط گف...

Modelling of Disinfection by-products formation via UV irradiation of the water from Tajan River (source water for Sari drinking water, Iran)

Background & Aims of the Study Irradiation with ultraviolet light (UV) is used for the disinfection of bacterial contaminants in the production of potable water. The main objective of the study was to investigate and model Disinfection By-Products (DBPs) formation due to the UV Irradiation of the Tajan River water under different Irradiation conditions. Materials & Methods: &nbs...

متن کامل

the impact of e-readiness on ec success in public sector in iran the impact of e-readiness on ec success in public sector in iran

acknowledge the importance of e-commerce to their countries and to survival of their businesses and in creating and encouraging an atmosphere for the wide adoption and success of e-commerce in the long term. the investment for implementing e-commerce in the public sector is one of the areas which is focused in government‘s action plan for cross-disciplinary it development and e-readiness in go...

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
iranian journal of health sciences

جلد ۱، شماره ۱، صفحات ۸۴-۹۱

کلمات کلیدی

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023