نوع مقاله : مقالات پژوهشی
نویسندگان
1 استادیار موسسه آموزش عالی خردگرایان مطهر، مشهد، ایران
2 کارشناس آلودگی محیط زیست، موسسه آموزش عالی خردگرایان مطهر، مشهد، ایران
3 دانشجوی دکترا، گروه علوم و مهندسی محیط زیست، ، دانشگاه آزاد اسلامی واحد تهران غرب، تهران، ایران
چکیده
زمینه و هدف: سبزیجات از جمله مواد غذایی با ارزشی محسوب می شوند. با این وجود ممکن است علاوه بر عناصر ضروری، حاوی مواد سمی با بیش از غلظت مجاز باشند که باعث ایجاد نگرانی های زیادی از نظر کیفیت و امنیت این محصولات و سلامت انسان شده است. لذا تحقیق حاضر به منظور بررسی تأثیر آلاینده های جوی دی اکسید کربن،بنزین و باران اسیدی بر مقاومت گیاهان ریحان و جعفری انجام شد.
مواد و روش: این پژوهش به صورت فاکتوریل بر پایه طرح کاملاً تصادفی با 3 تکرار و 54 تیمار اجرا شد. در این مطالعه CO2 با سه غلظت 0، 1000 و ppm 1800 ، بنزین با سه شرایط بدون افزودن بنزین، با بنزین معمولی و با افزودن بنزین سوپر و محلول اسیدی در دو سطح pH 4 و 6 مورد بررسی قرار گرفتند. لازم به ذکر است که آب مقطر با 7= pH به عنوان تیمار شاهد انتخاب گردید.
یافته ها: نتایج نشان داد که غلظت ppm 1000 دی اکسید کربن موجب 63/178% افزایش عملکرد گیاه شده در حالیکه تغلیظ آن تا 1800 ppm، منجر به نابودی گیاه در طی دو روز گردید. همچنین مشخص شد که بنزین سوپر به دلیل بالا بودن عدد اکتان و مکمل های موجود در آن نسبت به بنزین معمولی اثر آلایندگی کمتری (به میزان 7/5%) بر گیاه دارد. علاوه بر این تفاوت معنی داری بین غلظتهای مختلف محلول اسیدی بر مقاومت گیاه مشاهده نشد. در این آزمایش، گیاه جعفری مقاومت بیشتری نسبت به ریحان در مقابل آلاینده ها از خود نشان داد.
نتیجه گیری: دی اکسید کربن نسبت به سایر آلاینده های مورد مطالعه و همچنین نقش کلیدی آن در پدیده گرمایش جهانی، نیازمند اعمال مدیریت موثر به منظور ارتقای بهداشتی جامعه و کنترل منابع تولید کننده این گاز در اتمسفر می باشیم.
کلیدواژه‌ها
عنوان مقاله [English]
Study the impact of carbon dioxide emissions, gasoline, and acid rain on the resistance of Basil and Parsley
نویسندگان [English]
- Mitra Mohammadi 1
- Sepideh Ansari 2
- Zeinab Asghari 2
- Samaneh Najafi 2
- Zohreh Mirzaei Niko 2
- Elahe Khayyami 3
1 Assistant Professor of Kheradgarayan Motahar Institute of Higher Education
2 Environmental pollution expert, Kheradgarayan Motahar Institute of Higher Education, Mashhad, Iran
3 PhD Student, Department of Environmental Science and Engineering, Islamic Azad University, West Tehran Branch, Tehran, Iran
چکیده [English]
Background and purpose: Vegetables are among the valuable foods. However, in addition to essential elements, they may contain toxins in excess of permissible concentrations, which has raised many concerns about the quality and safety of these products and human health. Therefore, the present study was conducted to investigate the effect of atmospheric pollutants of carbon dioxide, gasoline and acid rain on the resistance of basil and parsley.
Materials and Methods: This factorial study was performed based on a completely randomized design with 3 replications and 54 treatments . In this study, CO2 with three concentrations of 0, 1000 and, 1800 ppm, gasoline with three conditions without adding gasoline, with ordinary gasoline and with the addition of super gasoline, and acidic solution at two levels of pH 4 and 6 were studied. It should be noted that distilled water with pH = 7 was selected as a control treatment.
Results: The results showed that the concentration of 1000 ppm carbon dioxide increased plant yield by 178.63%, while its concentration up to 1800 ppm, led to the destruction of the plant in two days. It was also found that super gasoline due to the high-octane number and supplements in it has a less polluting effect (5.7%) on the plant than regular gasoline. In addition, no significant difference was observed between different concentrations of acidic solution on plant resistance. In this experiment, parsley showed more resistance to contaminants than basil.
Conclusion: carbon dioxide than other pollutants and also its key role in global warming, we need effective management to promote public health and control the production sources of this gas in the atmosphere.
کلیدواژه‌ها [English]
- Food Security
- Vegetables
- Environmental Pollution
- Air Pollution
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