بررسی میزان غلظت فلزات سنگین موجود در PM10 هوای شهر اهواز

نوع مقاله : Original Articles

نویسندگان

1 استادیار گروه مهندسی بهداشت محیط، دانشکده بهداشت وعضو مرکز تحقیقات فناوریهای زیست محیطی، دانشگاه علوم پزشکی جندی شاپور اهواز، اهواز، ایران

2 دانشیار گروه مهندسی بهداشت محیط، دانشکده بهداشت وعضو مرکز تحقیقات فناوریهای زیست محیطی، دانشگاه علوم پزشکی جندی شاپور اهواز، اهواز، ایران

3 دانشجوی دکتری مهندسی بهداشت محیط، دانشکده بهداشت و عضو کمیته تحقیقات دانشجویی، دانشگاه علوم پزشکی جندی شاپور اهواز، اهواز ،ایران

4 دانش آموخته کارشناسی ارشد مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی جندی شاپور اهواز و مسوول مدیریت پسماند بیمارستان امام خمینی (ره)آبادان، آبادان، ایران

5 استادیار گروه آمار زیستی، دانشکده بهداشت وعضو مرکز تحقیقات فناوریهای زیست محیطی، دانشگاه علوم پزشکی جندی شاپور اهواز، اهواز، ایران

6 کارشناس ارشد آلودگی های محیط زیست، دانشگاه آزاداسلامی واحد علوم وتحقیقات خوزستان، باشگاه پژوهشگران جوان، اهواز، ایران

چکیده

اهواز به عنوان کانون مرکزی جنوب غربی ایران، تحت تأثیر طوفان‌های گردو غبار خاورمیانه‌ای نشأت‌گرفته از عراق، عربستان سعودی، اردن، سوریه و همچنین آفریقا قرارگرفته است. هدف اصلی از این مطالعه بررسی میزان غلظت فلزات سنگین موجود در PM10 در طی روزهای عادی و گردو غباری در شهر اهواز بود. یک دستگاه نمونه‌بردار با حجم بالا برای جمع‌آوری نمونه از یک منطقه پرترافیک شهری انتخاب گردید. نتایج نشان داد که در طول روزهای گردو غباری متوسط غلظت PM10 در فصل بهار و تابستان به ترتیب 300 و 278 و در روزهای عادی به ترتیب 145 و126 میکروگرم در متر‌مکعب بود. محاسبات فاکتور غنی‌سازی نشان داد که فلز آلومینیوم با فاکتور غنی‌سازی پایین دارای منشأ زمینی بوده درحالی‌که فلز روی و سرب با میزان فاکتور غنی‌سازی بالا ریشه در منابع انسان ساخت مانند حمل‌ونقل و انتشارات صنعتی داشتند. در طول دوره مطالعه غلظت PM10 بالاتر از مقادیر استاندارد بود.

کلیدواژه‌ها

عنوان مقاله [English]

Heavy Metals Contents of PM10in Ambient Air of Ahvaz City, Iran

نویسندگان [English]

  • Gholamreza Goudarzi 1
  • Nadali Alavi Bakhtiarivand 2
  • Mohammad Shirmardi 3
  • Mohammad Heidari Farsani 4
  • Kambiz Ahmadi Ankali 5
  • Elahe zallaghi 6
  • Mehdi Vosoughi Niri 3
1 Assistant Professor, Department of Environmental Health Engineering, Faculty of Health and Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
2 Associate Professor, Department of Environmental Health Engineering, Faculty of Health and Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
3 Ph.D Student of Environmental Health Engineering, Faculty of Health, Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
4 MSc. in Environmental Health Engineering, Faculty of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran and Expert in Waste Management at Imam Khomeini Hospital, Abadan, Iran
5 Assistant Professor,Department of Biostatistics, Faculty of Health and Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
6 Islamic Azad University of Science and Research, Young Researchers Club, Ahvaz, Iran
چکیده [English]

Ahvaz as the focal point of south western of Iran has impressed by Middle East Dust (MED) storms which has originated from Iraq, Saudi Arabia, Jordan, Syria and also Africa. The main objective of this study was to evaluate heavy metals contents of PM10during normal and dust event days in Ahvaz. High volume sampler device was selected to take sample at a high traffic area of the city. Result showed that during dust event days, the average concentrations of PM10were 300 and 278 μgm-3in the spring and summer, while during normal days, the corresponding values were 145 and 126, respectively. Findings of enrichment factors indicated that Al with low enrichment factor had crustal origin, whereas Pb and Zn with high EF had anthropogenic sources such as transportation as well as industrial emissions. In present study, the concentrations of PM10were higher than the standard values.

کلیدواژه‌ها [English]

  • Keywords:Dust storms
  • Enrichment factor
  • High volume sampler
  • anthropogenic sources

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