نشریه محیط زیست طبیعی

وضعیت میکروبی آب‏‌های زیر‌زمینی حوضۀ رودخانۀ هراز استان مازندران

نوع مقاله : مقاله پژوهشی

نویسندگان

مربی پژوهشی بخش بیوتکنولوژی آزمایشگاه میکروبیولوژی، پژوهشکده اکولوژی دریای خزر،ساری، مازندران

چکیده

رودخانۀ هراز از دامنه‌های شمالی البرز مرکزی سرچشمه گرفته است و در یک درۀ به‌نسبت پهن به طرف شمال جریان می‏‌یابد و در مسیر آن چندین روستا،‌ محله، حداقل 20 کارخانۀ شن و ماسه و مزارع پرورش ماهی وجود دارد. علاوه بر آن با احداث رستوران‌ها و محل‌های استراحت برای مسافران به‌منزلۀ تفرج‌گاه نیز استفاده می‌‏‌شود. این مطالعه به‌منظور بررسی آلودگی میکروبی کلیفرمی آب‌های زیر‌زمینی منطقۀ رودخانۀ هراز انجام گرفت. در این مطالعه 60 نمونه آب‌های زیر‌زمینی رودخانۀ هراز، از 5 ایستگاه طی یک سال برداشته و در آن تعداد کل کلیفرم‌ها و کلیفرم مدفوعی ارزیابی شد. نتایج نشان داد بیشترین و کمترین میانگین لگاریتم تعداد توتال کلیفرم‌های آب زیرزمینی به‌ترتیب متعلق به ایستگاه‏‌های آب‌اسک (CFU/100ml 0/4) و هلوم‌سر (CFU/100ml 9/1) بوده است. همچنین بیشترین و کمترین میانگین لگاریتم تعداد کلیفرم مدفوعی به‌ترتیب در ایستگاه آب‌اسک (CFU/100ml 2/1) و کلوده، هلوم‌سر و لاریجان (CFU/100ml1/1 ) تعیین شد. نتایج این بررسی نشان داد که آب‌های زیر‌زمینی رودخانۀ هراز آلودگی میکروبی دارد و از نظر کیفیت در سطح پایین قرار دارد و برای شرب و مصارف انسانی مناسب نیست.

کلیدواژه‌ها

عنوان مقاله [English]

Microbial status of groundwater Haraz River Mazandaran Province

نویسندگان [English]

  • zahra yaghoubzadeh
  • Reza Safari

aculty Member - Caspian Sea Ecology Research center

چکیده [English]

Haraz River originates from the northern slopes of the Alborz and is flowed in a relatively broad valley. There are several village, sector, twenty sand factories and fish culture farms alongside of this river. In addition, restaurants and rest place for travelers sometimes used as a place. This study was performed to study the coliform contamination of ground water along the Haraz River.In this study, sixty samples were collected from groundwater during one year. The samples were examinated for total coliform and fecal coliform. The results showed that maximum and minimum of total coliforms in the ground water in Abask (4 CFU/100 ml) and Holomsar (1/9 CFU/100 ml) and maximum and minimum of fecal coliforms in Abask (1/2 CFU / ml) and Klode, Holomsar and Larijan (1/1CFU/100 ml), respectively.The results also showed that Haraz river ground water has been polluted

کلیدواژه‌ها [English]

  • Bacteria contamination
  • Coliform
  • groundwater
  • Haraz River

 

 
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نشریه محیط زیست طبیعی
دوره 68، شماره 2 - شماره پیاپی 2
شهریور 1394
صفحه 321-330