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بررسی غلظت آلومینیوم، آهن، منگنز، کروم و کادمیوم در آب زیرزمینی دشت اشنویه | ||
| اکوهیدرولوژی | ||
| مقاله 3، دوره 3، شماره 2، تیر 1395، صفحه 167-179 اصل مقاله (1.34 M) | ||
| نوع مقاله: پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ije.2016.59648 | ||
| نویسندگان | ||
| اصغر اصغری مقدم* 1؛ علی آدی گوزل پور2 | ||
| 1استاد گروه علوم زمین، دانشکدۀ علوم طبیعی، دانشگاه تبریز | ||
| 2دانشجوی کارشناسی ارشد/دانشگاه تبریز | ||
| چکیده | ||
| از بحثهای مهم در آبهای زیرزمینی، آلودگی آب ناشی از فلزات سنگین است. فلزات سنگین با توجه به ثبات شیمیایی، تجزیهپذیری ضعیف و داشتن قدرت تجمع زیستی در بدن موجودات زنده، به‌سرعت به آلایندههای سمی تبدیل میشوند. با توجه به آلودگی روزافزون منابع آب قابل بهرهبرداری و اهمیت پایش مداوم آنها، در این تحقیق غلظت آلومینیوم، آهن، منگنز، کادمیوم و کروم منابع آب زیرزمینی دشت اشنویه و تعیین اندیس اشباع برای آلومینیوم، آهن و منگنز ارزیابی شد. از این‌رو، در تحقیق حاضر از 15 نمونه آب انتخابی دشت در شهریور 1394 با توزیع یکنواخت نمونهبرداری شد، سپس نمونهها توسط دستگاه جذب اتمی آنالیز شدند. نتایج با استفاده از نرم‌افزار GIS Arc و در مقایسه با مقادیر استاندارد سازمان بهداشت جهانی ترسیم شد. با استفاده از نرم‌افزار (PHREEQC) اندیس اشباع نمونهها محاسبه شد. بررسیها نشان داد 33/33 درصد از نمونهها غلظت آلومینیوم بیشتر از حد مجاز سازمان بهداشت جهانی را دارند و در بقیۀ غلظت فلزات کمتر از غلظت استاندارد هستند. غیر از آلومینیوم آلودگی دشت به فلزات سنگین در مرز خطر نیست، ولی به‌علت عمق کم آب زیرزمینی و فعالیتهای شدید کشاورزی به‌طور قطع در دراز‌مدت خطرات زیست‌‌محیطی زیادی در پی خواهد داشت. بنابراین، باید دربارۀ پسابهای صنعتی، استفاده از سموم کشاورزی و آب برگشتی کشاورزی اقدامات کنترلی صورت گیرد. توسعۀ صنعتی منطقه باید با در‌نظر‌گرفتن خطرات احتمالی ناشی از آلودگی فلزات سنگین با برنامههای کنترلی و پایش مستمر آبهای زیرزمینی صورت پذیرد. | ||
| کلیدواژه‌ها | ||
| آب زیرزمینی؛ آلودگی؛ اندیس اشباع؛ دشت اشنویه؛ فلزات سنگین | ||
| عنوان مقاله [English] | ||
| Investigation of Aluminum, Iron, Manganese, Chromium and Cadmium Concentrations in Groundwater of Oshnavieh Plain | ||
| نویسندگان [English] | ||
| Asghar Asghari Moghaddam1؛ Ali Adigozalpuor2 | ||
| چکیده [English] | ||
| One of the most important issues in groundwater is its contamination by heavy metals. Because of chemical stability and poor degradation of heavy metals and their ability to accumulate in living organism’s bodies, they can become toxic. For this, 15 water samples were collected from the groundwater resources of the Oshnavieh Plain in September 2015 ,with evenly distributed, and then were analyzed by atomic absorption. Concentrations of aluminum, iron, manganese, cadmium and chromium and saturation indices for aluminum, iron and manganese were determined. The analysis results were compared with standard values of the World Health Organization using the Arc GIS software and PHREEQC software for calculating Saturation indices The results showed that in 33.33 percent of the samples only aluminum concentration is higher than the World Health organization's maximum acceptable concentration and in the rest of samples concentrations of the metals are below the standard concentration. Except aluminum, contaminations of the other heavy metals are not in risk boundary. But, because of the shallow groundwater depth and intensive agricultural activities in the plain, certainly in the long term it will be followed by many environmental risks. So, it is necessary that the groundwater resources of the aquifer should be considered for monitoring industrial wastewater, agricultural pesticides and irrigational returned water flow. | ||
| کلیدواژه‌ها [English] | ||
| Contamination, Groundwater, Heavy metals, Oshnavieh Plain, Saturation Index | ||
| مراجع | ||
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