Determination of heavy metal in classroom dust and health risk assessment among primary school children in Serdang, Selangor

Abdul Mutalib, Nuraini Sarah (2013) Determination of heavy metal in classroom dust and health risk assessment among primary school children in Serdang, Selangor. [Project Paper] (Submitted)

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Abstract

Introduction: Dust borne metals can accumulate in topsoil due to atmospheric deposition by sedimentation, impaction, and interception. Elevated emissions and their depositions over time can lead to anomalous enrichment, causing metal contamination of the surface environment. Objective: This study was carried out to determine lead, cadmium and copper concentration and to assess the health risk among primary school children. Methodology: A cross sectional study was conducted among 126 primary school children in Serdang, Se1angor. A questionnaire was used to gather information on socio-demographic data and possible health symptoms from dust exposure. Twenty one dust samples were collected from seven classrooms in the study area and digested using Aqua Regia method. The dusts were collected from fan, floor and windows at each of the classroom. Heavy metal concentrations were determined by using Shimadzu AA-6800 Flame Atomic Absorption Spectrophotometer. Health risk assessment was calculated by Chronic Daily Intake and Hazard Quotient. Results: This study found that all twenty one samples contained lead concentration range between 0.17 and 408.25 g/g• Cadmium concentrations were range in between 0.40 and 4.17 g/g. Copper concentrations were in between 6.44 to 103.48 IJg/g. In floor dust samples the highest reading is Pb with 152 g/g and the lowest concentration is Cd with 1.02 g/g. However, in fan dust samples the highest and lowest concentration obtained is Pb with 408.25 g/g and 0.17 g/g. As for window dust samples, highest concentration is Pb with 169 g/g while the 10wst concentration is Cd with 1.21 g/g. Health risk assessment showed that acceptable risk for CDI and HQ. Conclusion: Lead, Cadmium and Copper were detected in dust but depicted acceptable risk to respondent health. Keywords: Lead, Cadmium, Copper, Classroom Dust, Chronic Daily Intake, Hazard Quotient

Item Type:	Project Paper
Faculty:	Faculty of Medicine and Health Science
Depositing User:	Mr Muhamad Fazril Awang
Date Deposited:	22 Nov 2022 06:50
Last Modified:	22 Aug 2023 04:24
URI:	http://psaspb.upm.edu.my/id/eprint/161

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