Sains Malaysiana 46(10)(2017):
1825–1830
http://dx.doi.org/10.17576/jsm-2017-4610-20
Estimation of Target
Hazard Quotients and Potential Health Risks for Metals by Consumption of Shrimp
(Litopenaeus vannamei)
in Selangor, Malaysia
(Penganggaran Darjah Bahaya Sasaran dan Potensi Risiko Kesihatan untuk Logam melalui
Pengambilan Udang (Litopenaeus vannamei) di Selangor, Malaysia)
SHANTAKUMARI RAJAN*
& NUR SAFIYYAH ISHAK
Faculty
of Health Science, Universiti Teknologi MARA, 42300 Bandar Puncak Alam,
Selangor Darul Ehsan, Malaysia
Diserahkan: 23 Oktober 2015/Diterima: 8 Februari 2017
ABSTRACT
The concentrations of
the heavy metal in Pacific white shrimp (Litopenaeus vannamei) purchased
from the local wet markets throughout the state of Selangor were investigated
using flame atomic absorption spectrometry. The order of the heavy metal
concentrations were Zn>Cu>Pb>Cd, whereby the
metal concentrations in most samples exceeded the limits of the Malaysian Food
Regulation, 1985 and the guidelines set by the Food and Agriculture Organisation (1983). A health risk analysis based on the
mean target hazard quotient (THQ) yielded values <1 for
all metals for average and maximal consumers. The total THQ (tTHQ) which measures the aggregated risk due to heavy metal
uptake via the ingestion of L. vannamei was
0.124 and 0.372 for average and maximal consumers, respectively. This suggests
that although the metal concentrations are exceeding the limit, there is no
calculated significant risk from metal toxicity by the consumption of shrimp.
Keywords: Hazard
quotient; health risk assessment; heavy metals; shrimp
ABSTRAK
Kepekatan logam berat dalam udang putih (Litopenaeus vannamei) yang dibeli dari dua puluh pasar basah di negeri Selangor telah diukur dengan menggunakan spektrometri penyerapan api atom. Purata tahap kepekatan logam berat adalah Zn>Cu>Pb>Cd, dengan kebanyakan sampel melebihi had Peraturan Makanan Malaysia, 1985 dan garis panduan yang ditetapkan oleh FAO (1983). Analisis risiko kesihatan berdasarkan darjah bahaya sasaran (THQ) menghasilkan nilai <1 untuk semua logam untuk pengguna. Jumlah THQ (tTHQ) yang mengukur risiko agregat disebabkan oleh pengambilan logam berat melalui pemakanan L. vannameimasing-masing adalah 0.124 dan 0.372, untuk pengguna yang makan udang secara sederhana dan maksimal. Ini mencadangkan walaupun kepekatan logam berat melebihi had yang ditetapkan, tiada risiko ketara daripada ketoksikan logam melalui pengambilan udang.
Kata kunci: Darjah bahaya; logam berat; penilaian risiko kesihatan; udang
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*Pengarang untuk surat-menyurat;
email: shanta@puncakalam.uitm.edu.my