완도군 무인도서 내 해안쓰레기 오염도와 종류

Abstract

Generally, marine waste(debris) is classified into depositional, suspended, and coastal groups. Of them, this study analyzed classifications and characteristics of coastal debris distributed in uninhabited islands of Wando-gun, in 2020. From the study, the following results were obtained. Firstly, the coastal waste pollution levels became worse in the Gogeum-myeon, Geumdang-myeon, Nohwa-eup, Bogil-myeon, and Sinji-myeon areas. Secondly, the aforementioned pollution levels and areal sizes of uninhabited islands mutually do not establish unambiguous statistical relationships. Thirdly, the pollution levels are clearly proportional to distances of pollution sources. Fourthly, cultivating fishery tends to deteriorate pollution level relative to private fishery. Lastly, the coastal waste is composed of fishing tool as waste net 55.3%, plastic 23.5%, styrofoam 21.8%, PET bottle 18.4%, metal 15.1%, and vinyl 12.8% in amount, respectively. The coastal waste is closely related with the distances from land and fishing activity styles in spatial distribution. Pollution levels in uninhabited islands are mainly worsen in cases of areas near administrative centers, floating population increases by bridges, and fishing activity as cultivation. For example, relatively many uninhabited islands located near land, belonging to Gogeum-myeon, Sinji-myeon, Geumdang-myeon, are assigned to level 2 in pollution levels. For coastal waste influence by cultivating fishery, it could be an example of high pollution waste levels of the uninhabited islands of Nohwa-eup and Bogil-myeon. In general, the waste in uninhabited islands lay aside in many cases. The islands are very important as transition areas in marine eco-systems. Therefore, administration plans on coastal waste in the islands must be systematically established in views of the conservation of marine environments.