Macro- and meso- marine debris on beaches in Khanh Hoa province, Vietnam: density, composition, and pollution indicators

Duong Thi Lim, Dao Dinh Cham, Nguyen Thi Lan Huong, Nguyen Thi Hue, Dang Tran Quan, Nguyen Thi Huong Thuy, Tran Thu Thuy, Trinh Thi Minh Trang, Pham Thi Dung, Dao Ngoc Nhiem, Nguyen Quang Bac, Duong Cong Dien
Author affiliations


  • Duong Thi Lim Institute of Geography, VAST, Vietnam
  • Dao Dinh Cham Institute of Geography, VAST, Vietnam
  • Nguyen Thi Lan Huong Institute of Geography, VAST, Vietnam
  • Nguyen Thi Hue Institute of Geography, VAST, Vietnam
  • Dang Tran Quan Institute of Geography, VAST, Vietnam
  • Nguyen Thi Huong Thuy Institute of Geography, VAST, Vietnam
  • Tran Thu Thuy Institute of Geography, VAST, Vietnam
  • Trinh Thi Minh Trang Institute of Geography, VAST, Vietnam
  • Pham Thi Dung Institute of Geography, VAST, Vietnam
  • Dao Ngoc Nhiem Institute of Material Science, VAST, Vietnam
  • Nguyen Quang Bac Institute of Material Science, VAST, Vietnam; Graduate University of Science and Technology, VAST, Vietnam
  • Duong Cong Dien Institute of Mechanics, VAST, Vietnam



Marine debris, plastic waste, CCI, PAI.


Marine debris is a prevalent problem that affects oceans and coastal regions worldwide, particularly beaches. The problem of marine litter pollution is also severe on beaches in Nha Trang. In this study, marine debris with a size ≥ 5 mm was collected at seven locations along the coastline of Nha Trang during both dry and rainy seasons, accruing a total of 4436 items. During the rainy season, most beaches had more debris than that in the dry season, and marine debris density ranged between 0.009 items/m2 to 0.418 items/m2. Results from the beach cleanliness index (CCI) assessment showed that CCI values ranged from 0.2 to 4.4 during the dry season, with beaches classified as either very clean or clean. Meanwhile, during the rainy season, CCI values ranged from 0.36 to 8.35, resulting in beaches being categorized as very clean, clean, or average. The Plastic Abundance Index (PAI) showed that the PAI ranged from 0.004 to 0.061 during the dry season, while during the rainy season, it ranged from 0.006 to 0.118. PAI values for both seasons indicated low levels of plastic debris distribution on the beaches. However, local authorities and managers need to pay attention to potential sources of pollution, such as waste from food service activities in restaurants, ports and unsustainable waste from aquaculture activities.


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How to Cite

Duong , T. L., Dao, D. C., Nguyen Thi, L. H., Nguyen, T. H., Dang , T. Q., Nguyen Thi, H. T., Tran , T. T., Trinh Thi, M. T., Pham, T. D., Dao , N. N., Nguyen, Q. B., & Duong, C. D. (2023). Macro- and meso- marine debris on beaches in Khanh Hoa province, Vietnam: density, composition, and pollution indicators. Vietnam Journal of Marine Science and Technology, 23(4), 387–396.




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