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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Ok, Yong Sik Kim, Sung-Chul Kim, Dong-Kuk Skousen, Jeffrey G. Lee, Jin-Soo Cheong, Young-Wook Kim, Su-Jung Yang, Jae E. |
| Spatial Coverage | Republic of Korea |
| Description | Author Affiliation: Ok YS ( Department of Biological Environment, Kangwon National University, Chuncheon, Korea.) |
| Abstract | The cadmium (Cd) content of rice grain grown in metal-contaminated paddy soils near abandoned metal mines in South Korea was found to exceed safety guidelines (0.2 mg Cd kgâ »¹) set by the Korea Food and Drug Administration (KFDA). However, current remediation technologies for heavy metal-contaminated soils have limited application with respect to rice paddy soils. Laboratory and greenhouse experiments were conducted to assess the effects of amending contaminated rice paddy soils with zerovalent iron (ZVI), lime, humus, compost, and combinations of these compounds to immobilize Cd and inhibit Cd translocation to rice grain. Sequential extraction analysis revealed that treatment with the ameliorants induced a 50-90% decrease in the bioavailable Cd fractions when compared to the untreated control soil. When compared to the control, Cd uptake by rice was decreased in response to treatment with ZVI + humus (69%), lime (65%), ZVI + compost (61%), compost (46%), ZVI (42%), and humus (14%). In addition, ameliorants did not influence rice yield when compared to that of the control. Overall, the results of this study indicated that remediation technologies using ameliorants effectively reduce Cd bioavailability and uptake in contaminated rice paddy soils. |
| File Format | HTM / HTML |
| ISSN | 02694042 |
| Issue Number | Suppl 1 |
| Volume Number | 33 |
| e-ISSN | 15732983 |
| Journal | Environmental Geochemistry and Health |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2011-01-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Health Cadmium Chemistry Environmental Restoration And Remediation Methods Mining Oryza Sativa Soil Pollutants Analysis Calcium Compounds Iron Oxides Republic Of Korea Soil Evaluation Studies Journal Article |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Medicine Geochemistry and Petrology Environmental Engineering Water Science and Technology |
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