بررسی فعالیت ویژه آلفا و بتای کل در آب‌های شرب استان ایلام

نویسندگان

1 ایلام، دانشگاه ایلام، دانشکده علوم پایه، گروه فیزیک

2 تهران، سازمان انرژی اتمی ایران، پژوهشگاه علوم و فنون هسته‌ای، پژوهشکده چرخه سوخت هسته‌ای

3 ایلام، شرکت آب و فاضلاب ایلام

چکیده

یکی از جنبه‌های مورد بررسی کیفیت آب، بررسی هسته‌های پرتوزای موجود در آن می‌باشد که به‌دلیل خطرناک بودن آلودگی مربوط به مواد پرتوزا از اهمیت بسیار بالایی برخوردار است. یکی از اصلی‌ترین راه‌های نفوذ مواد پرتوزا به بدن انسان، مصرف آب آلوده به مواد پرتوزای طبیعی و مصنوعی است. در این مقاله تعداد 20 نمونه از آب‌های شرب استان ایلام که تعداد خانوار بیش‌تری را تحت پوشش خود دارند، از نظر پرتوزایی مورد بررسی و اندازه‌گیری قرار گرفت. بعد از آماده‌سازی نمونه‌ها، فعالیت ویژه آلفا و بتا کل (... و ...) آن‌ها به‌کمک آشکارساز سوسوزن مایع (LSC) اندازه‌گیری شد. نتایج نشان داد که ...و... است. ضریب هم‌بستگی بین این دو متغیر، 27/0 می‌باشد ولی با این حال به‌کمک آزمون ... ثابت شد که رابطه‌ی معناداری بین این متغیرها وجود ندارد. نتایج نشان دادند که میزان فعالیت ویژه آلفا و بتای کل همه آب‌ها از حد استاندارد سازمان بهداشت جهانی (WHO) و مؤسسه استاندارد ملی ایران که به‌ترتیب mBq/L 500 و mBq/L 1000 می‌باشند، پایین‌تر است. بنابراین از نظر کیفیت رادیولوژیکی این آب‌ها سالم هستند و مصرف آن‌ها برای افراد خطر نخواهد داشت.
 

کلیدواژه‌ها

عنوان مقاله [English]

Investigation of gross alpha and beta activity concentration in drinking waters of the Ilam province

نویسندگان [English]

  • masoud sayedi 1
  • hassan ranjbar 2
  • leili shafiei 3
  • nourollah Teimouri 3
1
2
3
چکیده [English]

One of the aspects of water quality is the study of radionuclides in it, which is very important due to being hazardous contamination of radioactive materials. One of the main ways of penetration of radioactive materials into the human body is the consumption of water infected by natural or artificial radioactive material. In this work, 20 samples of drinking water in Ilam province, which cover more households was studied and measured in aspect of radioactive activity. Sampling was performed according to the required standards from the specified sources, then the total alpha and beta concentration activity of the samples (... ,... ) were measured using a "Liquid Scintillation Counter" (LSC). The results showed that ...  and... . The correlation coefficient between these two variables is 0.27 and it is justified by the ...  test that there is not significant relationship between these variables. The results showed that the gross alpha and beta activity concentration of all waters was lower than the standard of the World Health Organization (WHO) and the National Standards Institute of Iran, which is 500 mBq/Lit and 1000 mBq/Lit, respectively. Therefore, in terms of radiological quality, these waters are healthy and their consumption will not be risky for people.

 

کلیدواژه‌ها [English]

  • Concentration activity
  • Liquid scintillation counter
  • Correlation Coefficient
  • Ilam province
  • P-value test

مراجع

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