Publication of the Databook on Waste Management in the Republic of Korea and Japan
—A Joint Research Outcome with the National Institute of Environmental Research, Republic of Korea—

Japan and the Republic of Korea (hereinafter referred to as "Korea") are geographically close and share many similar challenges in the fields of waste management and resource circulation. However, differences in statistical survey frameworks and definitions have long made direct comparison between the two countries difficult.
In response to this issue, the Material Cycles Division of NIES, together with NIER, has worked to compile and harmonize statistical information by organizing it around common elements, to create a dataset that enables meaningful comparison between Korea and Japan.
This data book contains fundamental statistical information on waste management in both countries, including waste generation, treatment, and recycling rates.

Statistical information on waste management in Korea and Japan was collected, and differences in survey frameworks, classifications, and definitions across the two countries were reviewed and assessed. A dataset enabling cross‑country comparison was constructed based on a common classification framework, ensuring consistency across statistical items. In addition, explanatory notes were added to each statistical category to provide users with interpretive guidance and supplementary information relevant to Korea-Japan comparisons. These results were compiled and edited into a statistical data book, which is available online.

・The differences between the statistical systems of the two countries were clarified, and indicators suitable for comparison were identified.
・Characteristic trends in key indicators, such as waste generation and recycling rate, were identified for both Korea and Japan.
・Foundational information was organized to support mutual understanding of institutional and policy developments in both countries, providing a basis for future policy design and improvement.
・A unified format was established to support international comparative studies that look beyond Korea and Japan.

We plan to continue updating this data book by expanding the scope of target areas, refining statistical items, and conducting further comparative analyses. In addition, to support the advancement of a circular economy in the Asian region, we will explore opportunities for data collaboration with countries and regions beyond Korea and Japan.

【Title】
Databook on Waste Management in the Republic of Korea and Japan
【Issuing Organizations】
National Institute of Environmental Research, Republic of Korea
National Institute for Environmental Studies, Japan
【Publication Format】Online publication
【URL】https://www-cycle.nies.go.jp/eng/db/book/index.html

【Contact for this research】
Kousuke Kawai, Chief Senior Researcher
Material Cycles Division
National Institute for Environmental Studies
Email: intwaste_ra (please append ‘@nies.go.jp’ to complete the email address）

【Contact for this press release】
Public Relations Office, Planning Division
National Institute for Environmental Studies
Email: kouhou0 (please append ‘@nies.go.jp’ to complete the email address）