Toxicity assessment for the wastes removed from the in-water ship’s surface cleaning activities using sea-urchin embryos

Title
Toxicity assessment for the wastes removed from the in-water ship’s surface cleaning activities using sea-urchin embryos
Author(s)
서진영; 김문구; 최진우
KIOST Author(s)
Seo, Jin Young(서진영)Kim, Moonkoo(김문구)
Publication Year
2019-11-04
Abstract
This study was conducted to assess the toxicity of the wastes removed from ship’s surface by the in-water cleaning and water jet cleaning activities on the marine benthic animals. To evaluate the toxicity of wastes, sea urchin (Mesocentrotus nudus) embryos were used. Materials for this toxicity test were collected from the antifouling paint wastes removed by on dock water jet cleaning from the R/V EARDO and R/V ISABU, and also those from in-situ cleaning water (ICW) and filtered ICW (FICW) from the R/V EARDO and R/V ONNURI. Heavy metals and biocide contents in the wastes from cleaning operations and all the final stock solutions were analyzed. In the case of the R/V EARDO, the fertilization rate exposed on water jet samples were 79±5.8% at the 0.1% diluted solution, 2.3±1.4% and 0.2±0.5% at 1% and 10% solutions, respectively. The fertilization rate for ICW was 0% at 10% and 100% solution, but it was over than 90% at both the 0.1% and 1% solution. The fertilization rates on the ICW and the FICW were similar the EC50 values of fertilization rate for ICW and FICW were 2.7% and 3.1%, respectively. In the case of the R/V ISABU, fertilization rate was 0% exposed on the 10% solutionor less diluted solution from water jet samples. The concentration of copper in the water jet samples was higher at R/V ISABU than R/V EARDO, while those of copper and zinc were higher at R/V EARDO. Among the biocides, higher concentrations
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/22038
Bibliographic Citation
Asia Marine Biology symposium, pp.131, 2019
Publisher
Asia Marine Biology symposium
Type
Conference
Language
English
Publisher
Asia Marine Biology symposium
Related Researcher
Research Interests

Oil pollution,Antifouling paint,Dissolved methane,유류오염,방오도료,용존메탄

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse