Spatial assessment and source identification of heavy metals pollution in surface water using several chemometric techniques

被引:55
作者
Ismail, Azimah [1 ]
Toriman, Mohd Ekhwan [1 ]
Juahir, Hafizan [1 ]
Zain, Sharifuddin Md [3 ]
Habir, Nur Liyana Abdul [1 ]
Retnam, Ananthy [2 ]
Kamaruddin, Mohd Khairul Amri [1 ]
Umar, Roslan [1 ]
Azid, Azman [1 ]
机构
[1] Univ Sultan Zainal Abidin, East Coast Environm Res Inst ESERI, Gong Badak Campus, Kuala Terengganu 21300, Malaysia
[2] Minist Sci Technol & Inovat, Dept Chem Malaysia, Div Environm Hlth, Jalan Sultan, Petaling Jaya, Selangor, Malaysia
[3] Univ Malaya, Dept Chem, Kuala Lumpur 50603, Malaysia
关键词
Heavy metals; Straits of Malacca; Principal component analysis; Chemometric; Source apportionment; QUALITY; SEDIMENTS; STRAITS; SOILS; CU;
D O I
10.1016/j.marpolbul.2015.10.019
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This study presents the determination of the spatial variation and source identification of heavy metal pollution in surface water along the Straits of Malacca using several chemometric techniques. Clustering and discrimination of heavy metal compounds in surface water into two groups (northern and southern regions) are observed according to level of concentrations via the application of chemometric techniques. Principal component analysis (PCA) demonstrates that Cu and Cr dominate the source apportionment in northern region with a total variance of 57.62% and is identified with mining and shipping activities. These are the major contamination contributors in the Straits. Land-based pollution originating from vehicular emission with a total variance of 59.43% is attributed to the high level of Pb concentration in the southern region. The results revealed that one state representing each cluster (northern and southern regions) is significant as the main location for investigating heavy metal concentration in the Straits of Malacca which would save monitoring cost and time. Capsule: The monitoring of spatial variation and source of heavy metals pollution at the northern and southern regions of the Straits of Malacca, Malaysia, using chemometric analysis. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:292 / 300
页数:9
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