Iranian Journal of Health and Environment
سلامت و محیط زیست
ijhe
Medical Sciences
http://ijhe.tums.ac.ir
1
admin
2008-2029
2008-3718
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fa
jalali
1397
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gregorian
2019
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online
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fulltext
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بررسی غلظت گاز رادن در هوای داخل منازل مسکونی و اماکن عمومی شهر فیروزکوه
Investigation of indoor radon concentration in dwellings and public places of Firuzkuh
هوا
Air
كاربردي
Applicable
<div style="text-align: justify;"><strong><span style="font-family:b lotus;"><span style="font-size:12.0pt;">زمینه و هدف:</span></span></strong><span style="font-family:b lotus;"><span style="font-size:12.0pt;"> رادن یک گاز رادیواکتیو، بیبو است.</span></span><span style="font-family:b lotus;"><span style="font-size:12.0pt;"> گاز</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">رادن</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">با</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">انتشار</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">پرتو</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">آلفا</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">و</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">چسبیدن</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">به</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">ذرات</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">گرد</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">و</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">غبار</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">موجود</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">در</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">هوا</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">میتواند</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">باعث</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">ایجاد</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">سرطان</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">ریه</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">شود</span></span><span style="font-family:b lotus;"><span style="font-size:12.0pt;">. این مطالعه به اندازه گیری غلظت رادن در هوای داخل منازل مسکونی و اماکن عمومی شهر فیروزکوه و مقایسه مقادیر موجود با رهنمودها و استانداردهای توصیه شده بین المللی پرداخته است. </span></span><br>
<strong><span style="font-family:b lotus;"><span style="font-size:12.0pt;">روش بررسی:</span></span></strong><span style="font-family:b lotus;"><span style="font-size:12.0pt;"> جهت اندازه گیری غلظت گاز رادن از روش اندازه گیری غیرفعال و دتکتورهای </span></span><span dir="LTR"><span style="font-family:times new roman,serif;">CR-39</span></span><span style="font-family:b lotus;"><span style="font-size:12.0pt;"> استفاده گردید. دتکتورها به مدت سه ماه در </span></span><span style="font-family:b lotus;"><span style="font-size:12.0pt;">داخل </span></span><span style="font-family:b lotus;"><span style="font-size:12.0pt;">منازل و اماکن</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">عمومی سطح شهر جایگذاری گردیدند. بعد از طی این مدت، دتکتورها جمع آوری شدند و در آزمایشگاه، در محلول سود </span></span><span dir="LTR"><span style="font-family:times new roman,serif;">N</span></span><span style="font-family:b lotus;"><span style="font-size:12.0pt;"> 6/25 در دمای </span></span><span dir="LTR"><span style="font-family:times new roman,serif;">°C</span></span><span style="font-family:b lotus;"><span style="font-size:12.0pt;"> 85 به مدت </span></span><span dir="LTR"><span style="font-family:times new roman,serif;">h</span></span><span style="font-family:b lotus;"><span style="font-size:12.0pt;"> 4 قرار داده شدند و پس از آماده سازی با استفاده از دستگاه اسکن اتوماتیک و روشهای آماری مناسب، غلظت گاز رادن تعیین شد.</span></span><br>
<strong><span style="font-family:b lotus;"><span style="font-size:12.0pt;">یافتهها:</span></span></strong> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">نتایج مطالعه بیانگر این است که</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">میانگین</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">غلظت</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">گاز</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">رادن</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">در</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">منازل</span></span><span style="font-family:b lotus;"><span style="font-size:12.0pt;"> مسکونی</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">و</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">اماکن </span></span><span style="font-family:b lotus;"><span style="font-size:12.0pt;">عمومی </span></span><span style="font-family:b lotus;"><span style="font-size:12.0pt;">به</span></span> <span style="font-family:b lotus;"><span style="font-size:12.0pt;">ترتیب </span></span><span style="font-family:b lotus;"><span style="font-size:12.0pt;">137/74 و</span></span><span dir="LTR"><span style="font-family:times new roman,serif;"> Bq/m<sup>3</sup></span></span><span style="font-family:b lotus;"><span style="font-size:12.0pt;"> 110/17</span></span><span style="font-family:b lotus;"><span style="font-size:12.0pt;"> بوده است. </span></span><span style="font-family:b lotus;"><span style="font-size:12.0pt;">مقایسه نتایج حاصل با رهنمود سازمان جهانی بهداشت نشان میدهد که 76/3 درصد از منازل و 66/7 درصد از اماکن دارای غلظت بیش از مقدار رهنمودی (</span></span><span dir="LTR"><span style="font-family:times new roman,serif;">Bq/m<sup>3</sup></span></span><span style="font-family:b lotus;"><span style="font-size:12.0pt;">100) بودهاند.</span></span><br>
<strong><span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">نتیجهگیری:</span></span></span></strong> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">نتایج</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">حاصل</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">از</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">این</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">مطالعه</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">میتواند</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">برای</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">تهیه</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">نقشه</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">ملی</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">گاز</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">رادن</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">در</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">سطح</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">کشور</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">مورد</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">استفاده</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">قرار</span></span></span> <span dir="RTL"><span style="font-family:b lotus;"><span style="font-size:12.0pt;">گیرد</span></span></span><span style="font-family:times new roman,serif;"><span style="font-size:11.0pt;">.</span></span></div>
<div style="text-align: justify;"><strong>Background and Objective:</strong> Radon is a radioactive, odorless gas. Radon gas with the emission of alpha radiation and sticking to aerosols in the air can cause lung cancer. This study evaluated the concentration of radon in residential houses and public places in Firuzkuh city and compared the values with the recommended international guidelines.<br>
<strong>Materials and Methods:</strong> Radon gas concentration was measured by passive measurements using CR-39 detectors. The detectors were placed in houses and schools of the city for three months. After this time, the detectors were located and placed in a 6.25% normal solution at 85 °C for 4 hours in a laboratory. After preparation, using an automatic scan and appropriate statistical method, the concentration of radon gas was determined.<br>
<strong>Results:</strong> The results indicated that the average concentrations of radon gas in homes and public places were 137.74 and 110.17 Bq/m<sup>3</sup>, respectively. Comparing the results with the WHO guideline showed that 76.3% of the homes and 66.7% of the sites had a concentration above the guideline (100 Bq/m<sup>3</sup>).<br>
<strong>Conclusion:</strong> The results of this study can be used to prepare the National Radon gas map in the country.<br>
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گاز رادن, دتکتور رد پای آلفا, منازل مسکونی, اماکن عمومی
Radon gas, Alpha track detector, Dwellings, Public places
477
486
http://ijhe.tums.ac.ir/browse.php?a_code=A-10-1373-1&slc_lang=fa&sid=1
M
Banar
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بنار
mohaddeseh.banar@gmail.com