Dataset on Environmental Parameters and Greenhouse Gases in Port and Harbor Seawaters of Jeju Island, Korea

Jae-Hyun Lim, Ju-Hyoung Kim, Hyo-Ryeon Kim, Seo-Young Kim () and Il-Nam Kim ()
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Jae-Hyun Lim: Marine Environmental Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea
Ju-Hyoung Kim: Department of Aquaculture and Aquatic Science, Kunsan National University, Gunsan 54150, Republic of Korea
Hyo-Ryeon Kim: Department of Marine Science, Incheon National University, Incheon 22012, Republic of Korea
Seo-Young Kim: Department of Marine Science, Incheon National University, Incheon 22012, Republic of Korea
Il-Nam Kim: Department of Marine Science, Incheon National University, Incheon 22012, Republic of Korea

Data, 2025, vol. 10, issue 7, 1-7

Abstract: This dataset presents environmental observations collected in August 2021 from 18 port and harbor sites located around Jeju Island, Korea. It includes physical, biogeochemical, and greenhouse gas (GHG) variables measured in surface seawater, such as temperature, salinity, dissolved oxygen, nutrients, chlorophyll- a , pH, total alkalinity, and dissolved inorganic carbon. Concentrations and air–sea fluxes of nitrous oxide (N 2 O), methane (CH 4 ), and carbon dioxide (CO 2 ) were also quantified. All measurements were conducted following standardized analytical protocols, and certified reference materials and duplicate analyses were used to ensure data accuracy. Consequently, the dataset revealed that elevated nutrient accumulation in port and harbor waters and GHG concentrations tended to be higher at sites with stronger land-based influence. During August 2021, most sites functioned as sources of N 2 O, CH 4 , and CO 2 to the atmosphere. This integrated dataset offers valuable insights into the influence of anthropogenic and hydrological factors on coastal GHG dynamics and provides a foundation for future studies across diverse semi-enclosed marine systems.

Keywords: greenhouse gases; air–sea fluxes; coastal biogeochemistry; environmental chemistry; environmental data analysis; coastal pollution; semi-enclosed coastal waters; Jeju Island (search for similar items in EconPapers)
JEL-codes: C8 C80 C81 C82 C83 (search for similar items in EconPapers)
Date: 2025
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