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Ecotoxicity of heat-treated Kapur and Japanese larch


Salim, Sabiha and Ashaari, Zaidon and Choi, Yong Seok and Cho, Kijong and Jung, Jinho and Kim, Gyu Hyeok (2016) Ecotoxicity of heat-treated Kapur and Japanese larch. European Journal of Wood and Wood Products, 74 (2). pp. 243-248. ISSN 0018-3768; ESSN: 1436-736X


Kapur (Dryobalanops sp.) and Japanese larch (Larix kaempferi) wood samples were heat-treated in air at 180 °C for 24 and 48 h. Leaching and toxicity tests were conducted to determine the ecotoxicity effect of these heat-treated woods on the aquatic environment due to heat treatment. The toxicity of conventional preservative-treated woods, i.e. chromated copper arsenate (CCA) and ammoniacal copper quat (ACQ), was also determined for comparison purposes. Acute toxicity tests were performed using two aquatic organisms, Daphnia magna and Vibrio fischeri according to the Organization for Economic Co-operation and Development standard procedures and Microtox assay, respectively. Significantly low toxicity to D. magna was found for the heat-treated Kapur compared to that of untreated Kapur, while heat-treated Japanese larch did not show any toxicity effect. As expected, ACQ-treated samples showed the highest toxicity to D. magna, followed by that of CCA, though toxicity of both preservative-treated woods further reduced over time. Hence, heat treatment of Kapur and Japanese larch were believed to be not harmful to the aquatic ecosystem.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Forestry
DOI Number: https://doi.org/10.1007/s00107-015-1000-3
Publisher: Springer
Keywords: Kapur; Japanese larch; Heat treatment; Toxicity; Preservative-treated wood; Aquatic ecosystems
Depositing User: Nabilah Mustapa
Date Deposited: 08 Jun 2016 03:37
Last Modified: 08 Jun 2016 03:37
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1007/s00107-015-1000-3
URI: http://psasir.upm.edu.my/id/eprint/16739
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