Cypress Tree (Cupressus arizonica Greene.) as a Biomonitor of Heavy Metal Pollution in the Atmosphere of Isfahan

نویسندگان

  • Mahdi Zare Department of Natural Resources and Environment, Abadeh Branch, Islamic Azad University, Abadeh, Iran
  • Maryam Sanatgar Department of Natural Resources and Environment, Abadeh Branch, Islamic Azad University, Abadeh, Iran
  • Reza Fatemitalab Department of Natural Resources and Environment, Abadeh Branch, Islamic Azad University, Abadeh, Iran
چکیده مقاله:

Cypress tree with blue green foliage and scaly reddish brown bark is planted throughout world as an ornamental plant. One of the newest ways for determining amount and kind of environmental pollutants is natural biomonitoring. The samples were obtained from three sites (heavy traffic, moderate traffic and control) in Isfahan during August-September and November-December 2013 and February-March 2014. The concentrations of Zn, Ni and Cu in leaf and root were measured by using a flame atomic absorption spectrophotometer. Variations in the studied traits between sites and seasons were observed due to different anthropogenic activities. The higher concentration of the studied heavy metals in leaves rather than in roots in all locations illustrated a contribution of significant atmospheric deposition. The results of correlation coefficients between traits indicated that the sites were influenced by a different source of pollution. There was a positive correlation between zinc and copper, indicating that they could be originated from fuels as well as powder of shoe brake of vehicles. The mean metal concentration values were arranged in the following order: Zn > Cu > Ni. The level of zinc in leaf and root was moderate at the control site indicating that vehicle traffic is a minor emission source for zinc and there may be another zinc source around there, such as industrial activities. The results demonstrated the suitability of the cypress (Cupressus arizonica Greene.) tree as a biomonitorof atmospheric pollution in Isfahan.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Cypress tree (Cupressus semervirens L.) bark as an indicator for heavy metal pollution in the atmosphere of Amman City, Jordan.

Bio-monitoring of air quality in Amman City was investigated by analyzing 36 cypress tree (Cupressus semervirens L.) bark samples from three sites of different anthropogenic activities at the end of summer season 2001. Cypress barks were found to be a good bio-indicator for air pollution in arid regions. Variation in Pb, Zn, Mn, Cr, Ni, Cd, and Cu contents between sites was observed due to diff...

متن کامل

Evaluation of Heavy Metal Dust Pollution and their Origin in the Atmosphere of Kuhdasht, Lorestan Province

Dust is one of the environmental hazards in arid and semi-arid regions of the world. In some areas, under the influence of human activities, dust is contaminated by heavy metals. In this study, the dust of 10 stations in the Kuhdasht region of Lorestan province in four seasons of spring, summer, autumn, and winter, as well as adjacent surface soils (a total of 40 dust samples and 10 surface soi...

متن کامل

ideological and cultural orientations in translation of narrative text: the case of hajji baba of isfahan

در میان عواملی که ممکن است ذهن مترجم را هنگام ترجمه تحت تأثیر قرار دهند، می توان به مقوله انتقال ایدئولوژی از طریق متن یا گفتمان اشاره کرد. هدف از این تحقیق تجزیه و تحلیل جنبه های ایدئولوژیکی و فرهنگی متن مبدأ انگلیسی نوشته جیمز موریه تحت عنوان سرگذشت حاجی بابای اصفهانی ( 1823) و ترجمه فارسی میرزا حبیب اصفهانی(1880) بوده است.

the significance of conjunction as a cohesive device in teaching writing

the research questions were as follows: 1. is there any relationship between the students concious awareness of the form and implications of the conjuncations and their improvement in using appropriate conjunctions? 2. does students knowledge of the from and the implications of the conjunctions help them to produce more coherent writings. 3. does a comparison between english conjunctions and th...

15 صفحه اول

the impact of musical texts on the text recall of young learners of english in isfahan junior high schools

abstract although music possesses some kind of power and using it has been welcome by many students in language classrooms, it seems that they take a non-serious image of the lesson while listening to songs and they may think that it is a matter of fun. the main objective of the present study was to investigate whether learning a foreign language through musical texts (songs) can have an impac...

15 صفحه اول

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ذخیره در منابع من قبلا به منابع من ذحیره شده

{@ msg_add @}


عنوان ژورنال

دوره 6  شماره 2

صفحات  101- 106

تاریخ انتشار 2016-06-01

با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023