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Exposure to heavy metal in used crankcase oil among mechanic and health risk assessment / lzzat Mohd

Introduction: Used motor oil is a very dangerous polluting product. It contains Polynuclear Aromatic Hydrocarbons (PAH) and high levels of heavy metals. PAH, such as benzo[a]pyrene, are well known for their high carcinogenicity. Considerable quantities of heavy metals, such as Lead (Pb), Zink (Zn),...

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Main Author: Mohd, lzzat
Format: Student Project
Language:English
Published: 2011
Subjects:
Public health. Hygiene. Preventive Medicine
Environmental pollution
Metallurgy
Online Access:https://ir.uitm.edu.my/id/eprint/54277/1/54277.PDF
https://ir.uitm.edu.my/id/eprint/54277/
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spelling my.uitm.ir.542772021-12-09T03:20:59Z https://ir.uitm.edu.my/id/eprint/54277/ Exposure to heavy metal in used crankcase oil among mechanic and health risk assessment / lzzat Mohd Mohd, lzzat Public health. Hygiene. Preventive Medicine Environmental pollution Metallurgy Introduction: Used motor oil is a very dangerous polluting product. It contains Polynuclear Aromatic Hydrocarbons (PAH) and high levels of heavy metals. PAH, such as benzo[a]pyrene, are well known for their high carcinogenicity. Considerable quantities of heavy metals, such as Lead (Pb), Zink (Zn), Cuprum (Cu), Chromium (Cr), Nickel (Ni) and Cadmium (Cd), are contained in used crankcase oil and these metals are highly toxic to organisms. Environmental exposure to chemical mixtures may adversely affect human health. Methodology: A cross sectional study was conducted at 2 types of workshop; motorcycle workshop and car workshop located at Klang, Selangor. Sampling data collection involves collecting 60 samples of used crankcase oil at 8 different workshop (4 motorcycle and 4 car workshop). Questionnaires distribution was carried out to 50 respondents randomly chosen from the workers at the workshop or known as mechanics. Results: Result shown that the used crankcase oil of motorcycle contain average concentration 0.0228mg/g for Lead, Zinc 0.2137mg/g, Copper 0.0119 mg/g, and Chromium 0.0830mg/g respectively. While, for the car is Lead 0.0238mg/g, Zinc 0.1380mg/g, Copper 0.0246 mg/g, and Chromium 0.0893mg/g. The Independent t- test and Mann Whitney proved that, there are differences between concentration of Chromium (Cr) and Copper (Cu) at significant value p< 0.05 for both types of oil. Calculation Average Daily Intake (ADI) for Lead (Pb), Zinc (Zn), Copper (Cu), and Chromium (Cr) among workers at motorcycle and car workshop are not exceeding the Tolerable Daily Intake Standard (TOI) which are 3.6 x 10-3 for Pb, 5 x 10-1 for Zn, 8.3 x 10-2 for Cu, and 5 x 10-3 for Cr respectively. Hazard Index show that none of the result exceed 1, indicate no potential chronic effects. Conclusion: As a conclusion, clear evidence of heavy metal (Pb, Zn, Cu, Cr) presence in car and motorcycle used crankcase oil. However, only Cr and Cu shown a significant different on sample between both types of vehicles. The ADI of Pb, Zn, Cu, and Cr towards mechanics are not exceeding the tolerable daily intake standard. Hazard Risk shows the result where there is no potential chronic effect occurs. 2011-05 Student Project NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/54277/1/54277.PDF ID54277 Mohd, lzzat (2011) Exposure to heavy metal in used crankcase oil among mechanic and health risk assessment / lzzat Mohd. [Student Project] (Unpublished)
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Public health. Hygiene. Preventive Medicine
Environmental pollution
Metallurgy
spellingShingle Public health. Hygiene. Preventive Medicine
Environmental pollution
Metallurgy
Mohd, lzzat
Exposure to heavy metal in used crankcase oil among mechanic and health risk assessment / lzzat Mohd
description Introduction: Used motor oil is a very dangerous polluting product. It contains Polynuclear Aromatic Hydrocarbons (PAH) and high levels of heavy metals. PAH, such as benzo[a]pyrene, are well known for their high carcinogenicity. Considerable quantities of heavy metals, such as Lead (Pb), Zink (Zn), Cuprum (Cu), Chromium (Cr), Nickel (Ni) and Cadmium (Cd), are contained in used crankcase oil and these metals are highly toxic to organisms. Environmental exposure to chemical mixtures may adversely affect human health. Methodology: A cross sectional study was conducted at 2 types of workshop; motorcycle workshop and car workshop located at Klang, Selangor. Sampling data collection involves collecting 60 samples of used crankcase oil at 8 different workshop (4 motorcycle and 4 car workshop). Questionnaires distribution was carried out to 50 respondents randomly chosen from the workers at the workshop or known as mechanics. Results: Result shown that the used crankcase oil of motorcycle contain average concentration 0.0228mg/g for Lead, Zinc 0.2137mg/g, Copper 0.0119 mg/g, and Chromium 0.0830mg/g respectively. While, for the car is Lead 0.0238mg/g, Zinc 0.1380mg/g, Copper 0.0246 mg/g, and Chromium 0.0893mg/g. The Independent t- test and Mann Whitney proved that, there are differences between concentration of Chromium (Cr) and Copper (Cu) at significant value p< 0.05 for both types of oil. Calculation Average Daily Intake (ADI) for Lead (Pb), Zinc (Zn), Copper (Cu), and Chromium (Cr) among workers at motorcycle and car workshop are not exceeding the Tolerable Daily Intake Standard (TOI) which are 3.6 x 10-3 for Pb, 5 x 10-1 for Zn, 8.3 x 10-2 for Cu, and 5 x 10-3 for Cr respectively. Hazard Index show that none of the result exceed 1, indicate no potential chronic effects. Conclusion: As a conclusion, clear evidence of heavy metal (Pb, Zn, Cu, Cr) presence in car and motorcycle used crankcase oil. However, only Cr and Cu shown a significant different on sample between both types of vehicles. The ADI of Pb, Zn, Cu, and Cr towards mechanics are not exceeding the tolerable daily intake standard. Hazard Risk shows the result where there is no potential chronic effect occurs.
format Student Project
author Mohd, lzzat
author_facet Mohd, lzzat
author_sort Mohd, lzzat
title Exposure to heavy metal in used crankcase oil among mechanic and health risk assessment / lzzat Mohd
title_short Exposure to heavy metal in used crankcase oil among mechanic and health risk assessment / lzzat Mohd
title_full Exposure to heavy metal in used crankcase oil among mechanic and health risk assessment / lzzat Mohd
title_fullStr Exposure to heavy metal in used crankcase oil among mechanic and health risk assessment / lzzat Mohd
title_full_unstemmed Exposure to heavy metal in used crankcase oil among mechanic and health risk assessment / lzzat Mohd
title_sort exposure to heavy metal in used crankcase oil among mechanic and health risk assessment / lzzat mohd
publishDate 2011
url https://ir.uitm.edu.my/id/eprint/54277/1/54277.PDF
https://ir.uitm.edu.my/id/eprint/54277/
_version_ 1718929623963664384
score 13.211869

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