نتایج جستجو برای: ccme water quality index

تعداد نتایج: 1596075  

ژورنال: سلامت و محیط زیست 2013
ابطحی, مهرنوش, اعظم واقفی, کوشیار, اکتابی, سوگل, سعیدی, رضا, علی عسگری, فاطمه, غلام نیا, رضا, محبی, محمدرضا, منتظری, احمد,

Background and objectives: In this research, an innovative drinking water quality index for assessing water resources as “modified drinking water quality index (MDWQI)” was developed and applied for evaluating all of the groundwater resources utilized for community water supply in urban areas of Iran during 2011. Materials and methods: Twenty-three water quality parameters and relevant Iranian ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده ادبیات و علوم انسانی 1393

چکیده پارامترهای ژئومورفیک از عوامل تعیین کننده و تاثیر گذار بر کیفیت اکولوژیکی رودخانه ها هستند. کیفیت فیزیکی و شیمیایی آب رودها می‏تواند متاثر از لیتولوژی موجود در حوضه آبریز ، جنس رسوبات حمل شده به رودخانه و عوامل زیستی باشد. در این تحقیق، پارامترهای تاثیر گذار بر کیفیت شیمیایی آب رودخانه کرج در دو ایستگاه سیرا و بیلقان مورد بررسی قرار گرفته است. با استفاده از ایستگاه های هیدرومتری موجود بر...

Journal: :International Journal for Research in Applied Science and Engineering Technology 2017

Journal: :Polish Journal of Environmental Studies 2019

Journal: Geopersia 2013
Amir Saberi Nasr Majid Dashti Barmaki Mohsen Rezaei

Fuzzy Water Quality Index (FWQI) was applied in order to assess the degree of drinking water resources in Yazd province, Iran. Thisstudy has also offered the creation of a new fuzzy water quality index (FWQI) to evaluate this tool’s applicability. 12 chemicalparameters including toxic and non-toxic heavy metals measured in 71 groundwater samples collected from drinking water resourcesin rural a...

Journal: :Civil Engineering Journal 2022

Groundwater is one of the most crucial freshwater resources in many parts world. However, growth population and different economic activities have negatively impacted groundwater quality. This study aims to assess quality An-Giang province, Vietnam, from 2017–2020 investigate its suitability for drinking via a new integrated-weight water index (IWQI). The samples were collected at thirteen well...

Journal: :Biochemical Society transactions 2002
L Thöny-Meyer

Post-translational maturation of c-type cytochromes involves covalent attachment of haem to the apocytochrome polypeptide by two thioether bonds. In bacteria, haem attachment occurs in the periplasm, after the separate translocation of haem and the polypeptide across the cytoplasmic membrane. In Escherichia coli, delivery and attachment of the cofactor requires eight or nine specific proteins, ...

ژورنال: سلامت و محیط زیست 2016

Background and objectives: Swimming is one of the most popular sport fields and entertainments that has considerable benefits for human health, but on the other hand microbial water contamination in swimming pools through transmission and spread of infectious diseases is a significant threat against public health. In this study, microbial water quality of all public swimming pools in Tehran wer...

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