Emission factor from UOS v7.0.1

Nitrogen in fertiliser, direct and indirect emission

Name: Nitrogen in fertiliser, direct and indirect emission
Creator: Umhverfis- og orkustofnun
License: https://www.althingi.is/lagas/nuna/2018045.html

Iceland · Any year

Each kilogram of nitrogen counts as 5.44 kg CO₂e. UOS gives one figure, for use in any year.

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Value for any year

5.44kgCO₂e/kg N

GWP100 · IPCC AR5

One value, for any year

UOS sets no date window, so there is no year to pick.

Reference year 2024

Region: Iceland IS
Boundary: Boundary not stated
Data quality: MediumRated by us, not by the source
Licence: Open · UOS terms

Where 5.44 comes from

Published as one number

UOS prints this factor as a single figure, with no parts to add up and no split by gas.

Reporting this kilogram under the GHG Protocol

The publisher does not state what the value covers, so no scope can be assigned.

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The factor, standardised

Every factor on open-climate.ai answers the same questions in the same words, whatever the publisher. Open any ⓘ for the definition.

Direct emissions › Agricultural process emissions · Iceland · per kg N · Average

Category: Direct emissions › Agricultural process emissions; Browse it to compare every publisher's factors
Activity: Nitrogen in fertiliser, direct and indirect emission; UOS: Köfnunarefni í áburði - bein og óbein losun
Region: IcelandIS; Not on the record; set from UOS's coverage
Per unit: kg N; Published as kg CO2íg/kg N; no conversion needed
Data type: Average; No supplier named

Excl. biogenic CO₂ · AR5

Boundary: Not stated by the publisher
GWP method: IPCC AR5, 100-year horizon; As printed by UOS
CO₂e basis: Excl. biogenic CO₂; Not split by gas; CO₂e only

Medium quality · Open licence · Any year

Data quality: Medium; Rated by us, not by the source
Applies to: Any year; Reference year 2024 · one value; UOS sets no date window
Origin: Printed by UOS
Licence: Open · UOS's terms of use; Free to reuse, with attribution

What this number covers

UOS does not say which steps of the production this figure includes, so there is no chain to draw.

From UOS's record to a comparable factor

UOS publishes this factor as one record. Here is each field as printed and what open-climate.ai made of it.

UOS fields and their standardised form
UOS field	As printed		Served as
Name	Köfnunarefni í áburði - bein og óbein losun	→	Nitrogen in fertiliser, direct and indirect emission
Category	Áburðarnotkun > Köfnunarefni í áburði - bein og óbein losun	→	Direct emissions › Agricultural process emissions
Total	5.44	→	5.44 kgCO₂e/kg N
Unit	kg CO2íg/kg N	→	per kg N
GWP	AR5	→	AR5, GWP100
Publication date	18/12/2025	→	Published 18 December 2025; applies to any year

Checks this factor passed

Unit, region and method mapped to fixed code lists.

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About this factor

From UOS

Mikilvægt er að reikna aðeins losun vegna magns niturs í áburðinum en ekki vegna heildarmagns áburðarins. Bein og óbein hláturgaslosun vegna áburðarnotkunar. Óbein losun er losun vegna uppgufunar og útskolunar ammóníaks og nituroxíða.

Source and licence

Publisher: Umhverfis- og orkustofnun
Library: UOS v7.0.1
Published: 18 December 2025

Open the record at UOS

UOS's terms of use Open

The values and their metadata are served in full and may be reused with credit to the publisher.

Credit it with this lineUmhverfis- og orkustofnun (Icelandic Environment and Energy Agency), Losunarstuðlar, 7th edition (December 2025)

A plain reading of the licence, not legal advice. The licence text prevails.

Cite this factor

Umhverfis- og orkustofnun (Icelandic Environment and Energy Agency), Losunarstuðlar, 7th edition (December 2025). Normalised by open-climate.ai, https://open-climate.ai/factors/libraries/uos_iceland/ (CC BY 4.0). https://open-climate.ai/factors/ef-uosiceland-nitrogen_direct_indirect-is-kg_n-640a99aa/?v=efv1-65f4840517c745366bc975d83f7eba89

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