GNINPO-DSM: A Global Nitrogen Inventory based on National Population for Domestic Sewage Management (Version 2025)
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This dataset presents a global inventory of nitrogen flows related to domestic sewage management, estimated based on national population data and sanitation service levels. It includes country-level estimates of nitrogen excretion, treatment, and discharge from domestic wastewater systems for the years 2005-2022.
Description
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Creator
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Release date
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2026/02/27
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Temporal coverage
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2005-2022 (annual)
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Data provider
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NIES
Email: cgerdb_admin(at)nies.go.jp |
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DOI
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File format
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Comma separated Values (.csv)
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Data volume
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2 MB (including supplementary materials)
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Version
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ver. 2025 (Last updated: 2026/02/27)
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Language
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English
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Data Set
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Parameters
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Country identifier (ISO 3166-1 alpha-3 code)
Year of record Total nitrogen excretion (TNE) Nitrogen input into sewerage systems (NIS1) Nitrogen input into septic tanks (NIS2) Nitrogen input into other improved sanitation facilities (NIS3) Nitrogen input into unimproved sanitation facilities (NIS4) Human nitrogen excretion not captured by any sanitation systems (NIS5) Nitrogen treated at sewage treatment plants (PMN1) Nitrogen through properly managed septic tanks (PMN2) Nitrogen through other improved sanitation facilities with proper management (PMN3) Untreated nitrogen discharge from sewerage systems (UNM1) Nitrogen through septic tanks without proper management (UNM2) Nitrogen through other improved sanitation facilities without proper management (UNM3) Nitrogen discharge from unimproved sanitation facilities (UNM4) Nitrogen discharge from open defecation (UNM5) |
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Keywords
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[Free keywords]
Nitrogen flows, Domestic Sewage, Wastewater, Sanitation, Global Inventory, Population-based Estimation, Environmental Management
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Update history
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[2026/02/27]
Dataset was released. Ver.2025
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Contributors
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Data Manager
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Project Leader
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Project Member
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Project Member
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Project Member
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Acknowledgements
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Acknowledgements
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This dataset is created for Environment Research and Technology Development Fund (JPMEERF20235001), Sustai-N-able Project, RIHN (No. 14210156), and the Strategic Research Program, NIES (2125SP050,2125SP010, 2125SP060).
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Fund
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Funder
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独立行政法人環境再生保全機構（Environmental Restoration and Conservation Agency）
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Grant number
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JPMEERF20235001
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Reference Information
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Supplementary Materials
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Supplementary dataset of per capita nitrogen excretion by country and year.: SupplementaryDataset-1_GNINPO-DSM.csv
Supplementary dataset of population by sanitation system type and management status, by country and year.:
SupplementaryDataset-2_GNINPO-DSM.csv Methodology for constructing the GNINPO‑DSM dataset.:
Methodology _GNINPO-DSM.pdf Data dictionary for the GNINPO‑DSM dataset.:
DataDictionary_GNINPO-DSM.csv Country list included in the GNINPO‑DSM dataset.:
CountryList_GNINPO-DSM.csv README file with instructions for the GNINPO‑DSM dataset.:
README.md |
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References
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Okadera et al. (in prep.). GNINPO-DSM: A Global Inventory based on National Population for Domestic Sewage Management. To be submitted to Earth System Science Data (ESSD).
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Terms and Conditions of Use*
*By accessing or using the Service you agree to be bound by these Terms. If you disagree with any part of the terms then you may not access the Service.
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License
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Citation format
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When this data set is referred to in publications, it should, as a general rule, be made in the following format.
Tomohiro Okadera et al. (2026), GNINPO-DSM: A Global Nitrogen Inventory based on National Population for Domestic Sewage Management (Version 2025), ver. 2025*1 , NIES,
DOI:10.17595/20260227.001. (Reference date*2: YYYY/MM/DD) *1 The version number is indicated in the name of each data file. *2 As the reference date, please indicate the date you downloaded the files. |