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The assessment of Haloacetic acids (HAAs) in residential tap water

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Bibliographic Details
Main Author: Noor Izni, Othman
Other Authors: Dr. Nasrul Hamidin
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2016
Subjects:
Haloacetic acids (HAAs)
Drinking water
Disinfection by-product (DBPs)
Haloacetic acids (HAAs) > Analysis
Human risk
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/42380
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spelling my.unimap-423802016-07-24T07:46:31Z The assessment of Haloacetic acids (HAAs) in residential tap water Noor Izni, Othman Dr. Nasrul Hamidin Haloacetic acids (HAAs) Drinking water Disinfection by-product (DBPs) Haloacetic acids (HAAs) -- Analysis Human risk Access is limited to UniMAP community. Haloacetic Acids (HAAs) are one of the disinfection by-product (DBPs) compound found in treated drinking water. During disinfection, DBPs were generated when chlorine reacts with natural organic matter (NOM). This study determine the type of HAAs compounds found in the tap water, the concentration of these compound and the potential health risk on human exposed to HAAs in household tap water. The data for HAAs and other physical and chemical parameters of water were collected between February to March 2015; from 3 districts in Perlis, namely Kangar, Kuala Perlis and Jejawi. The samples were collected from tap water. The method used to prepare the sample were EPA method 552.3. The HAAs concentrations were determined by gas chromatography with mass spectroscopy (GC-MS). Trichloroacetic acid (TCAA) and dichloroacetic acids (DCAA) are 2 compounds that are most detected in treated drinking water. The range concentration of trichloroacetic acid (TCAA) and dichloroacetic acids (DCAA) are 0.21 mg/L to 0.28 mg/L and 0.31 mg/L to 0.38 mg/L. The levels of concentration of HAAs in residential tap water are above the maximum contaminated levels specified by World Health Organization (WHO) standards. The maximum contaminant level of DCAA and TCAA according to WHO are 50 μg/L and 100 μg/L. The cancer risk value only available for DCAA only. The mean value for oral ingestion and inhalation are 4.69x10-4 and 4.38x10-13, respectively. The overall result of cancer risk obtained for HAAs were below than 10-4 as suggested by EPA standard. However, the result for non-cancer risk suggested that long term exposure to HAAs may resulted to high risk on human. The potential are cancer (liver, kidney & bladder), reproductive and development effects. 2016-07-24T07:46:31Z 2016-07-24T07:46:31Z 2015-06 Learning Object http://dspace.unimap.edu.my:80/xmlui/handle/123456789/42380 en Universiti Malaysia Perlis (UniMAP) School of Environmental Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Haloacetic acids (HAAs)
Drinking water
Disinfection by-product (DBPs)
Haloacetic acids (HAAs) -- Analysis
Human risk
spellingShingle Haloacetic acids (HAAs)
Drinking water
Disinfection by-product (DBPs)
Haloacetic acids (HAAs) -- Analysis
Human risk
Noor Izni, Othman
The assessment of Haloacetic acids (HAAs) in residential tap water
description Access is limited to UniMAP community.
author2 Dr. Nasrul Hamidin
author_facet Dr. Nasrul Hamidin
Noor Izni, Othman
format Learning Object
author Noor Izni, Othman
author_sort Noor Izni, Othman
title The assessment of Haloacetic acids (HAAs) in residential tap water
title_short The assessment of Haloacetic acids (HAAs) in residential tap water
title_full The assessment of Haloacetic acids (HAAs) in residential tap water
title_fullStr The assessment of Haloacetic acids (HAAs) in residential tap water
title_full_unstemmed The assessment of Haloacetic acids (HAAs) in residential tap water
title_sort assessment of haloacetic acids (haas) in residential tap water
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2016
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/42380
_version_ 1643799985563631616
score 13.222552

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