Bioavailable heavy metal concentration in classroom dust and related health risk assessment of primary school children in Rawang, Malaysia

Children are vulnerable to heavy metals in classroom dust. A total of 51 classroom dust samples were collected from children’s palms using wet tissue wiping method from April to June 2016. Physiologically Based Extraction Test (PBET) was applied to determine bioavailable heavy metal concentration...

Full description

Saved in:

Bibliographic Details
Main Author:	Tan, Sock Yin
Format:	Thesis
Language:	English
Published:	2020
Subjects:	Metals Heavy - adverse effects Dust Risk Assessment
Online Access:	http://psasir.upm.edu.my/id/eprint/99295/1/TAN%20SOCK%20YIN%20cd%20SGS%20-%20IR.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-upm-ir.99295
record_format	uketd_dc
spelling	my-upm-ir.992952023-04-03T06:46:15Z Bioavailable heavy metal concentration in classroom dust and related health risk assessment of primary school children in Rawang, Malaysia 2020-07 Tan, Sock Yin Children are vulnerable to heavy metals in classroom dust. A total of 51 classroom dust samples were collected from children’s palms using wet tissue wiping method from April to June 2016. Physiologically Based Extraction Test (PBET) was applied to determine bioavailable heavy metal concentrations and potential health risks among the school children were estimated. The highest mean of bioavailable heavy metal concentration in classroom dust was Zn (12.5103 μg/g), followed by Cu (0.9585 μg/g), Ni (0.5340 μg/g), Cr (0.0472 μg/g), Co (0.0234 μg/g), As (0.0177 μg/g), Cd (0.0096 μg g), and Pb (0.0050 μg/g). Principal Component Analysis (PCA) was used to determine heavy metal sources in classroom dust. Heavy metals in PC1 (As, Cd, Co, Cu, Zn) were mostly linked with natural and anthropogenic sources, while PC2 (Cr, Ni) were more related to anthropogenic activities (industrial activities, traffic congestion). Hierarchical cluster has indicated three clusters, namely Cluster 1 (S3, S4, S6, S15) as residential areas, Cluster 2 (S7, S9, S10, S12) as industrial area and Cluster 3 (S1, S2, S5, S8, S14, S11, S13, S16, S17) as a mixed land use area (residential, industrial, plantation). Emissions from vehicles, plantations and industrial activities were the main heavy metal sources in classroom dust. The relationship between bioavailable heavy metal concentrations in classroom dust with school and classroom characteristics was done using Spearman’s Rho. Only Cu (r = 0.767, p = 0.016) was found significant related with distance between school and traffic road, while Cd (r = -0.725, p = 0.027) was found negatively related to classroom floor level. There were no potential health risks (non-carcinogenic and carcinogenic) of ingestion pathway reported. Metals, Heavy - adverse effects Dust Risk Assessment 2020-07 Thesis http://psasir.upm.edu.my/id/eprint/99295/ http://psasir.upm.edu.my/id/eprint/99295/1/TAN%20SOCK%20YIN%20cd%20SGS%20-%20IR.pdf text en public doctoral Universiti Putra Malaysia Metals, Heavy - adverse effects Dust Risk Assessment Praveena, Sarva Mangala
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
advisor	Praveena, Sarva Mangala
topic	Metals Heavy - adverse effects Dust Risk Assessment
spellingShingle	Metals Heavy - adverse effects Dust Risk Assessment Tan, Sock Yin Bioavailable heavy metal concentration in classroom dust and related health risk assessment of primary school children in Rawang, Malaysia
description	Children are vulnerable to heavy metals in classroom dust. A total of 51 classroom dust samples were collected from children’s palms using wet tissue wiping method from April to June 2016. Physiologically Based Extraction Test (PBET) was applied to determine bioavailable heavy metal concentrations and potential health risks among the school children were estimated. The highest mean of bioavailable heavy metal concentration in classroom dust was Zn (12.5103 μg/g), followed by Cu (0.9585 μg/g), Ni (0.5340 μg/g), Cr (0.0472 μg/g), Co (0.0234 μg/g), As (0.0177 μg/g), Cd (0.0096 μg g), and Pb (0.0050 μg/g). Principal Component Analysis (PCA) was used to determine heavy metal sources in classroom dust. Heavy metals in PC1 (As, Cd, Co, Cu, Zn) were mostly linked with natural and anthropogenic sources, while PC2 (Cr, Ni) were more related to anthropogenic activities (industrial activities, traffic congestion). Hierarchical cluster has indicated three clusters, namely Cluster 1 (S3, S4, S6, S15) as residential areas, Cluster 2 (S7, S9, S10, S12) as industrial area and Cluster 3 (S1, S2, S5, S8, S14, S11, S13, S16, S17) as a mixed land use area (residential, industrial, plantation). Emissions from vehicles, plantations and industrial activities were the main heavy metal sources in classroom dust. The relationship between bioavailable heavy metal concentrations in classroom dust with school and classroom characteristics was done using Spearman’s Rho. Only Cu (r = 0.767, p = 0.016) was found significant related with distance between school and traffic road, while Cd (r = -0.725, p = 0.027) was found negatively related to classroom floor level. There were no potential health risks (non-carcinogenic and carcinogenic) of ingestion pathway reported.
format	Thesis
qualification_level	Doctorate
author	Tan, Sock Yin
author_facet	Tan, Sock Yin
author_sort	Tan, Sock Yin
title	Bioavailable heavy metal concentration in classroom dust and related health risk assessment of primary school children in Rawang, Malaysia
title_short	Bioavailable heavy metal concentration in classroom dust and related health risk assessment of primary school children in Rawang, Malaysia
title_full	Bioavailable heavy metal concentration in classroom dust and related health risk assessment of primary school children in Rawang, Malaysia
title_fullStr	Bioavailable heavy metal concentration in classroom dust and related health risk assessment of primary school children in Rawang, Malaysia
title_full_unstemmed	Bioavailable heavy metal concentration in classroom dust and related health risk assessment of primary school children in Rawang, Malaysia
title_sort	bioavailable heavy metal concentration in classroom dust and related health risk assessment of primary school children in rawang, malaysia
granting_institution	Universiti Putra Malaysia
publishDate	2020
url	http://psasir.upm.edu.my/id/eprint/99295/1/TAN%20SOCK%20YIN%20cd%20SGS%20-%20IR.pdf
_version_	1776100314966917120

Bioavailable heavy metal concentration in classroom dust and related health risk assessment of primary school children in Rawang, Malaysia

Similar Items