ارزیابی تغییرات مکانی و زمانی کیفیت آب رودخانه بابلرود با استفاده از شاخص‌های کیفیت آب IRWQIsc، NSFWQI و CCME

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه مهندسی آب، فاضلاب و محیط زیست، دانشکده مهندسی عمران، آب و محیط زیست، دانشگاه شهید بهشتی، تهران، ایران.

10.22059/jwim.2023.355688.1056

چکیده

آب، یکی از مهم‌ترین عناصر موجود در جهان، جهت ادامه حیات موجودات زنده شناخته می‌شود و سلامت منابع آبی به‌ویژه آب سطحی، عامل کلیدی و تعیین‌کننده سلامت و پایداری اکوسیستم‌های آبی است. رودخانه‌ها از مهم‌ترین منابع آب سطحی هستند که در سال‌های اخیر با توجه به افزایش جمعیت، فعالیت‌های صنعتی و کشاورزی و تخلیه پساب‌ها به‌شدت تحت تأثیر آلودگی قرار گرفته‌اند. شاخص‌های کیفیت آب (WQI) یک ابزار پرکاربرد برای ارزیابی کیفی آب رودخانه‌ها و سایر منابع آبی می‌باشند. در این پژوهش به‌منظور ارزیابی کیفیت آب رودخانه بابلرود، از سه ایستگاه در طول یک سال آبی (مهرماه 1398 تا شهریورماه 1399) نمونه‌برداری انجام شد و پارامترهای کیفی با استفاده از سه شاخص، کیفیت آب سطحی ایران (IRWQIsc)، کیفیت آب بنیاد ملی بهداشت (NSFWQI) و کیفیت آب کانادا (CCME WQI) مورد تجزیه ‌و تحلیل قرار گرفتد. استفاده از این سه شاخص یک رویکرد جامع برای ارزیابی و مدیریت کیفیت آب فراهم می‌کند تا امکان درک بهتر سلامت و پایداری منابع آب را در اختیار ما قرار دهند. براساس نتایج، مقادیر شاخص IRWQISC بین 50 تا 9/78، شاخص NSFWQI بین 57 تا 73 و شاخص CCME WQI بین 31 تا 38 قرار دارد که نشان‌دهنده کیفیت متوسط و ضعیف آب رودخانه، به‌ویژه در پایین‌دست رودخانه است. از عوامل اصلی کیفیت پایین آب، ورود آلاینده‌ها از مناطق مسکونی و کشاورزی، فعالیت‌های کنترل‌نشده انسانی و تغییر کاربری اراضی به این رودخانه است.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Assessment of Spatio-Temporal Changes in Water Quality of Babolroud River Using IRWQIsc, NSFWQI and CCME Water Quality Index

نویسندگان [English]

  • Alireza Shaker Donyavi
  • Pooria cheloyan
  • Ali Moridi
  • Reza khalili
Department of Water, Waste Water and Environmental Engineering, Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University, Tehran, Iran.
چکیده [English]

Water, one of the most important elements in the world, is known to be essential for the survival of living organisms and the health of water resources, especially surface water, is a key factor in determining the health and sustainability of aquatic ecosystems. Rivers are among the most important sources of surface water that have been severely affected by pollution in recent years due to population growth, industrial and agricultural activities, and wastewater discharge. Water Quality Index (WQI) is a widely used tool for assessing the quality of river water and other water resources. In this study, water samples were taken from three stations along Babolroud River during one hydrological year (from September 2019 to August 2020) to evaluate its water quality, and the quality parameters were analyzed using three indices: Iran Surface Water Quality Index (IRWQIsc), National Sanitation Foundation Water Quality Index (NSFWQI), and Canadian Water Quality Index (CCMEWQI). The use of these three indices provides a comprehensive approach to water quality assessment and management, enabling us to better understand the health and sustainability of water resources. According to the results, the IRWQISC index ranges from 50 to 78.9, the NSFWQI index ranges from 57 to 73, and the CCME WQI index ranges from 31 to 38, indicating moderate to poor water quality in the river, especially downstream. The main factors contributing to the low quality of water are the entry of pollutants from residential and agricultural areas, uncontrolled human activities, and land use changes along the river.

کلیدواژه‌ها [English]

  • Babolroud River
  • CCMEWQI
  • IRWQISC
  • NSFWQI
  • Water quality

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مدیریت آب و آبیاری
دوره 13، شماره 2
تیر 1402
صفحه 551-563

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