study concentrations changes of lead, chromium, nickel, cadmium, zinc and copper in beshar river of kohgiluyeh and boyerahmad province, iran

نویسندگان

kobra ayaseh

hamidreza azimzadeh

fatemeh shahbazikafraj

ahad setoode

چکیده

due to the lack of water quality of resourses in country, exact review of available water resources quality, especially in terms of heavy elements (heavy metals) has a particular importance. due to industrial towns 1 and 2 of yasuj city and also yasuj wastewater treatment, surveying environmental harmful effects of heavy metals on this river is very important. to investigate the changes of heavy metals (pb, cr, ni, cd, zn and pb) sampling from three stations qalat, mokhtar and pataveh was carried out from september 2012 until may 2013 along the beshar river. to estimate the severity of the pollution, pi index (pollutant index) and cumulative index ipi and mcd were used. mean values ​​of the elements shows that the maximum and minimum mean value of the elements respectively is related to chromium and cadmium.calculating of pollution index (pi) and then cumulative index ipi and mcd based on the epa,who, nas and fao standards, shows the low pollution for the whole data in water of  beshar river. the process of elements concentration changes primarily is related to distance between sampling points and sources of pollutants. being far or near is the important point about this issue. just when the 1053 standard is used for computing the ipi and mcd indices, these indices are different in contamination degree. in this situation one of the indices is placed in low pollution class and another index will be in very high pollution class.

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

Study Concentrations Changes of Lead, Chromium, Nickel, Cadmium, Zinc and Copper in Beshar River of Kohgiluyeh and Boyerahmad Province, Iran

Due to the lack of water quality of resourses in country, exact review of available water resources quality, especially in terms of heavy elements (heavy metals) has a particular importance. Due to industrial towns 1 and 2 of Yasuj city and also Yasuj wastewater treatment, surveying environmental harmful effects of heavy metals on this river is very important. To investigate the changes of heav...

متن کامل

technical and legal parameters for determination of river boundary,( case study haraz river)

چکیده با توسعه شهر نشینی و دخل و تصرف غیر مجاز در حریم رودخانه ها خسارات زیادی به رودخانه و محیط زیست اطراف آن وارده می شود. در حال حاضر بر اساس آئین نامه اصلاح شده بستر و حریم رودخانه ها، حریم کمی رودخانه که بلافاصله پس از بستر قرار می گیرد از 1 تا20 متر از منتهی الیه طرفین بستر رودخانه تعیین، که مقدار دقیق آن در هر بازه از رودخانه مشخص نیست. در کشورهای دیگر روشهای متفاوتی من جمله: درصد ریسک...

15 صفحه اول

Evaluating the antioxidant and acetylcholinesterase inhibitory activities of some plants from Kohgiluyeh va Boyerahmad province, Iran

Background and objectives: Alzheimer’s disease (AD) is a neurodegenerative disorder. Nowadays, many investigations are performed to find new drugs for AD and medicinal plants are considered as one of the most important sources for developing new drugs. According to the role of oxidant agents and acetylcholinesterase enzyme (AChE) in AD, plants with antioxidant and AChE inhibition properties cou...

متن کامل

P-42: Concentrations of Zinc, Copper, Iron, lead, and Cadmium in Ram Epididymal Tissue and Their Correlations to Serum Testosterone

Background With the advent of rapid industrialization, several chemicals are released in the air, water and soil. Chemical elements play a crucial role in male reproduction. Heavy metals exposure can adversely affect male fertility and result in severe impairment of testicular functions including germ cell death and inhibition of testicular steroidogenesis. The aim of this study was to investig...

متن کامل

morphology, geochemistry, mineralogy, and micromorphology of soils of hormozgan province in relation to parent materials

ویژگی های زمین شیمیایی، کانی شناسی، و میکرومورفولوژیکی خاک ها و سنگ مادر مربوطه در منطقه بین بخش های جنوبی زاگرس و خلیج فارس تا دریای عمان(استان هرمزگان، ایران) مورد بررسی قرار گرفت. هدف های این مطالعه شناسایی تغییرات در خصوصیات فیزیکی، شیمیایی، و ترکیب کانی شناسی خاک، مطالعه میکرومورفولوژی و تکامل خاک، و بررسی توزیع عنصر خاک بر اساس هوازدگی، پروسه های خاک و زمین شناسی جهت توصیف اثرات مواد مادر...

15 صفحه اول

منابع من

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


عنوان ژورنال:
نشریه علمی - پژوهشی هیدرولوژی کاربردی

جلد ۲، شماره ۲، صفحات ۶۳-۷۲

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023