بررسی میزان آلودگی کلیفرمی رودخانه کر در استان فارس

نوع مقاله: مقاله کامل

نویسندگان

1 مدیریت هماهنگی ترویج کشاورزی فارس

2 دانشگاه دریانوردی و علوم دریایی چابهار

3 دانشکده دامپزشکی دانشگاه شیراز، بخش آبزیان

چکیده

رودخانه کر یکی از رودخانه‌های پرآب کشور (استان فارس) محسوب می‌شود و در مسیر خود با عبور از مناطق کشاورزی، از میان شهر‌ها و روستا‌ها انواع آلاینده‌ها را در خود جمع می‌کند. این مطالعه به‌منظور بررسی کیفیت میکروبی رودخانه کر و شاخص‌های کل کلیفرم (Total coliform) و کلیفرم مدفوعی (Fecal coliform) در مطالعات ارزیابی اثرات زیست محیطی انجام گرفت. در این بررسی 3 ایستگاه (از بالادست به پایین دست به‌ترتیب بند امیر، پل خان و حسین آباد کامفیروز) واقع در رودخانه کر به‌منظور تعیین میزان آلودگی کلیفرمی از سه لایه سطح، میانی و رسوب انتخاب گردید و نمونه‌برداری به‌صورت ماهانه به‌مدت 9 ماه از فرودین ماه 1383 تا آذر ماه1383 و هر ماه سه بار انجام گرفت. تعیین میزان آلودگی کلیفرمی به‌روش استاندارد MPN صورت گرفت. نتایج حاصل نشان داد که بیشترین میزان آلودگی در سطح رودخانه و در شهریور ماه بوده است. بیشترین و کمترین تعداد کل کلیفرم‌های آب سطحی به‌ترتیب متعلق به ایستگاه‌های بند امیر و پل خان 16000 در 100 میلی‌لیتر و حسین آباد 60 در 100 میلی لیتر بوده است. هم‌چنین بیشترین و کمترین میانگین تعداد کلیفرم‌های مدفوعی به‌ترتیب در ایستگاه‌های بند امیر 16000 در 100 میلی‌لیتر و ایستگاه حسین آباد 50 در 100 میلی‌لیتر بوده است. به‌طوری‌که نتایج حاصله نشان از عدم آلودگی در نواحی بالادست سد درود زن (حسین آباد کامفیروز) و آلودگی رودخانه کر در نواحی زیر سد در ماه‌های مختلف داشت و هم‌چنین نتایج این تحقیق بر استفاده از شاخص‌های کل کلیفرم و کلیفرم مدفوعی به‌عنوان روشی موثر و با صرفه اقتصادی جهت ارزیابی دقیق و سریع کیفیت رودخانه تاکید می‌کند.

کلیدواژه‌ها


عنوان مقاله [English]

Evaluation of Coliform pollution in the Kor River of Fars province

نویسندگان [English]

  • F. Mardani 1
  • P. Akbary 2
  • M.S Fereidouni 3
1 Integrate management , agricultural extension organizations , Fars
2 Chabahar Maritime University, Marine Sciences, Fisheries group.
3 Animal Health Unit, Veterinary Faculty, Shiraz University, Iran
چکیده [English]

Kor is a river in Fars province, Iran and its paths crossing agricultural areas, cities and villages collects pollutants. The aim of this study was to evaluate the microbial quality of Kor River and microbial indicators such as total and fecal coliforms. In this survey, in order to study the Coliform pollution of Kor River, three layers from surface, intermediate and sediment were sampled in three stations (from downstream to up river Band Amir, Pol Khan and Hossein Abad respectively,).Sampling was done monthly during 9 months. From March 2004 to November 2004. The pollution by standard diagnosis of Coliform was completely examined. The results showed that the most pollution was found in surface layer of river. Besides, the highest Coliform count was seen in September. Maximum and minimum of total coliforms and fecal coliforms in surface water was observed in Ban Amir and Pol Khan (16000 /100ml and 16000 / ml) and Hossein Abad (60/100ml and (50/100ml) respectively. The results showed none pollution up dorodzan dam and intense pollution in downstream of it in difference months, The results showed that using total and fecal coliforms indicators are economy and quick method for good assessment of pollution specifically have strictly in seasons polluted.

کلیدواژه‌ها [English]

  • Pollution
  • COLIFORM
  • Kor River
  • Fars province
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