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Determination of trace elements in epiphytic lichens from Bandar Baru Bangi, Selangor using INAA method

Lichens have been used as effective biomonitors of atmospheric pollutants as they can take up nutrients and pollutants directly from the atmosphere. In this study, trace element contents in epiphytic lichens were determined using INAA method. Samples were collected from 7 sampling locations around...

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Main Authors: Nurshafiq Ezam, Khairudin, Khoo, Kok Siong, Wee, Boon Siong
Format: Proceeding
Language:English
Published: 2014
Subjects:
QC Physics
Online Access:http://ir.unimas.my/id/eprint/10262/1/Nurshafiq.pdf
http://ir.unimas.my/id/eprint/10262/
https://scholar.google.com.my/citations?view_op=view_citation&hl=en&user=KmdSVJMAAAAJ&citation_for_view=KmdSVJMAAAAJ:4TOpqqG69KYC
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spelling my.unimas.ir.102622022-01-04T02:47:03Z http://ir.unimas.my/id/eprint/10262/ Determination of trace elements in epiphytic lichens from Bandar Baru Bangi, Selangor using INAA method Nurshafiq Ezam, Khairudin Khoo, Kok Siong Wee, Boon Siong QC Physics Lichens have been used as effective biomonitors of atmospheric pollutants as they can take up nutrients and pollutants directly from the atmosphere. In this study, trace element contents in epiphytic lichens were determined using INAA method. Samples were collected from 7 sampling locations around Bandar Baru Bangi, Selangor. The elements detected were As (1.73±0.85 mg/kg), Ce (3.65±1.91 mg/kg), Co (0.29±0.12 mg/kg), Cr (5.92±3.54 mg/kg), Cs (0.92±0.25 mg/kg), Eu (0.03±0.02 mg/kg), Fe (1280±760 mg/kg), Hf (0.37±0.18 mg/kg), La (1.52±0.89 mg/kg), Rb (27.7±4.8 mg/kg), Sc (0.33±0.19 mg/kg), Sm (0.28±0.16 mg/kg), Th (1.21±0.62 mg/kg) and Zn (116±27 mg/kg). Comparisons were then made between the elemental concentrations obtained and the baseline data from literature. Results showed that most of the elements were within the concentration range of the baseline data. Enrichment factors (EF) of the trace element in lichens showed that most of the elements were within the range of the baseline data except for As which was found to be slightly enriched (EF: 13.2 - 28.5). Regression analysis indicated significant correlation (p<0.05) with Sc for most of the elements which signifies crustal input except for Cs and Rb. The poor correlations of Cs and Rb with Sc may be due to the mobility of these elements. In summary, trace element data obtained using INAA were very useful and demonstrated that lichens were suitable biomonitors for identifying potential trace element pollutants in ambient air around the sampling area. 2014 Proceeding NonPeerReviewed text en http://ir.unimas.my/id/eprint/10262/1/Nurshafiq.pdf Nurshafiq Ezam, Khairudin and Khoo, Kok Siong and Wee, Boon Siong (2014) Determination of trace elements in epiphytic lichens from Bandar Baru Bangi, Selangor using INAA method. In: ADVANCING NUCLEAR RESEARCH AND ENERGY DEVELOPMENT: Proceedings of the International Nuclear Science, Technology & Engineering Conference 2013 (iNuSTEC2013). https://scholar.google.com.my/citations?view_op=view_citation&hl=en&user=KmdSVJMAAAAJ&citation_for_view=KmdSVJMAAAAJ:4TOpqqG69KYC
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic QC Physics
spellingShingle QC Physics
Nurshafiq Ezam, Khairudin
Khoo, Kok Siong
Wee, Boon Siong
Determination of trace elements in epiphytic lichens from Bandar Baru Bangi, Selangor using INAA method
description Lichens have been used as effective biomonitors of atmospheric pollutants as they can take up nutrients and pollutants directly from the atmosphere. In this study, trace element contents in epiphytic lichens were determined using INAA method. Samples were collected from 7 sampling locations around Bandar Baru Bangi, Selangor. The elements detected were As (1.73±0.85 mg/kg), Ce (3.65±1.91 mg/kg), Co (0.29±0.12 mg/kg), Cr (5.92±3.54 mg/kg), Cs (0.92±0.25 mg/kg), Eu (0.03±0.02 mg/kg), Fe (1280±760 mg/kg), Hf (0.37±0.18 mg/kg), La (1.52±0.89 mg/kg), Rb (27.7±4.8 mg/kg), Sc (0.33±0.19 mg/kg), Sm (0.28±0.16 mg/kg), Th (1.21±0.62 mg/kg) and Zn (116±27 mg/kg). Comparisons were then made between the elemental concentrations obtained and the baseline data from literature. Results showed that most of the elements were within the concentration range of the baseline data. Enrichment factors (EF) of the trace element in lichens showed that most of the elements were within the range of the baseline data except for As which was found to be slightly enriched (EF: 13.2 - 28.5). Regression analysis indicated significant correlation (p<0.05) with Sc for most of the elements which signifies crustal input except for Cs and Rb. The poor correlations of Cs and Rb with Sc may be due to the mobility of these elements. In summary, trace element data obtained using INAA were very useful and demonstrated that lichens were suitable biomonitors for identifying potential trace element pollutants in ambient air around the sampling area.
format Proceeding
author Nurshafiq Ezam, Khairudin
Khoo, Kok Siong
Wee, Boon Siong
author_facet Nurshafiq Ezam, Khairudin
Khoo, Kok Siong
Wee, Boon Siong
author_sort Nurshafiq Ezam, Khairudin
title Determination of trace elements in epiphytic lichens from Bandar Baru Bangi, Selangor using INAA method
title_short Determination of trace elements in epiphytic lichens from Bandar Baru Bangi, Selangor using INAA method
title_full Determination of trace elements in epiphytic lichens from Bandar Baru Bangi, Selangor using INAA method
title_fullStr Determination of trace elements in epiphytic lichens from Bandar Baru Bangi, Selangor using INAA method
title_full_unstemmed Determination of trace elements in epiphytic lichens from Bandar Baru Bangi, Selangor using INAA method
title_sort determination of trace elements in epiphytic lichens from bandar baru bangi, selangor using inaa method
publishDate 2014
url http://ir.unimas.my/id/eprint/10262/1/Nurshafiq.pdf
http://ir.unimas.my/id/eprint/10262/
https://scholar.google.com.my/citations?view_op=view_citation&hl=en&user=KmdSVJMAAAAJ&citation_for_view=KmdSVJMAAAAJ:4TOpqqG69KYC
_version_ 1724078475559567360
score 13.211869

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