Incorporation of Heavy Metals Bioavailability into Risk Characterization |
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| Authors: | Hyerim Ryu Jae Shik Chung Taekwoo Nam Hee Sun Moon Kyoungphile Nam |
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| Institution: | 1. Department of Civil and Environmental Engineering, Seoul National University, Seoul, Republic of Korea;2. School of Earth and Environmental Sciences, Seoul National University, Seoul, Republic of Korea |
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| Abstract: | The bioavailability of field‐aged Cd and Cu was calculated, and compared to the total concentrations determined by acid digestion. Only 0.60–4.15% for Cd and 0.59–9.43% for Cu were found to be bioavailable when determined by stomach‐phase extraction. The incorporation of bioavailability reduced more than 90% of the calculated risk of the metals at the site of study. It should be noted that such a reduction may not be generalized and the site‐specific bioavailability needs to be determined case by case. |
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| Keywords: | Acid digestion method Bioavailability Heavy metals Risk assessment Stomach‐phase extraction |
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