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MetricPollution, microplastics and hazardous substances

Nitrogen oxides emissions to air as NO2

Measurement answer

What this metric measures

Nitrogen oxides emissions to air as NO2 is the mass released from own operations during the reporting period, expressed on the source-defined nitrogen-dioxide basis and retained by facility, source, threshold profile and measurement method.

Specification

Metric specification

Result format
Structured table
Unit
Structured table — see field-level units
Reporting basis
Reporting-period flow
Aggregation
Compatible NO2-basis, non-overlapping rows only; nitrate, total nitrogen and nitrous oxide stay separate
Pillar
Environmental
Topic
Pollution, microplastics and hazardous substances
Controlled domain
Pollution
Entity type
Metric

Reporting boundary

Own-operation releases to air for controlled facilities under the applicable current ESRS and E-PRTR threshold profile. Nitrogen oxides are reported on the NO2 mass basis; nitrate, total nitrogen and nitrous oxide are excluded.

Verified source occurrences

Framework coverage

This is one canonical metric. The bindings below show every verified framework occurrence without creating duplicate metric pages. Edition, disclosure, role, and relationship remain source-specific.

  • Adopting Disclosure

    EU laws and regulatory guidance

    Source evidence
    Publisher
    European Union
    Edition
    Consolidated edition current on 15 August 2026 and applicable to reporting year 2026
    Requirement
    Not Specified
    Relationship
    Defines Disclosure
    Mapping outcome
    Direct Evidence
    Source locator
    Annex II pollutant identities, chemical expressions and air, water and land thresholds
    Open official framework source

Value structure

Dimensions and units

Unit
Structured table — see field-level units
Reporting basis
Reporting-period flow

Unit meaning: This metric is reported as a structured table; each field carries the unit stated in the table fields below.

Table fields and units

  • Facility, source, activity, country and financial or operational control boundary
  • Emitted mass (kg NO2 — kilograms of nitrogen oxides expressed as nitrogen dioxide; 1 t = 1,000 kg)
  • Annual air-reporting threshold and edition — a reporting gate, not an emission limit
  • Measurement, calculation, factor or estimation method, source and uncertainty
  • Reporting period and missing, below-threshold or not-measured reason

Published dimensions

  • Nitrogen oxides emission row
  • Facility, source and activity
  • Country and financial or operational control boundary
  • Direct, periodic, calculated, factor-based or estimated method
  • Reporting period, threshold profile and method edition
  • Nitrogen-dioxide expression basis

Disclosure method

Formula information

Status
Not applicable
Formula type
Structured Disclosure

Disclosure form

No single formula

Populate the structured fields from qualifying source observations and retain each field-level unit, boundary, status, and method; do not collapse the disclosure into one calculated value.

Verified sources

Evidence and status sources

Sustopedia checked each record-specific claim directly against primary publisher material. Labels distinguish current measurement authority from future compatibility and corroborative, legal, edition, or method status context. Corroborative evidence can support a stated limitation but cannot establish the core measurement by itself.

Measurement evidence

  • Measurement evidenceChecked 15 August 2026

    Regulation (EC) No 166/2006 concerning the European Pollutant Release and Transfer Register

    Publisher
    European Union
    Edition
    Consolidated edition current on 15 August 2026 and applicable to reporting year 2026
    Locator
    Annex II pollutant identities, chemical expressions and air, water and land thresholds

    Supports: Official publisher reference linked specifically to the Sustopedia metric “Nitrogen oxides emissions to air as NO2”; interpret it with the source-edition basis and limitations shown on this page.

    Open official source

Use with context

Interpretation boundaries

Method disclosures required

Source-edition basis: Binding ESRS E2-4 in Commission Delegated Regulation (EU) 2023/2772 consolidated 1 January 2025, the current E-PRTR Annex II NOx/NO2 row, and current GRI 305-7 link-out evidence.

  • Facility, source, activity, country and control boundary
  • Nitrogen oxides expressed as nitrogen dioxide mass
  • Released mass in kg NO2, meaning kilograms of nitrogen oxides expressed as nitrogen dioxide
  • Applicable air threshold and threshold edition as a reporting gate
  • Direct, periodic, calculated, factor-based or estimated method and source
  • Reporting period, uncertainty, missing-value state and method edition

Record-specific limitations

  • Instrumentation, sampling and conversion practices can differ across facilities and reporting methods.
  • An annual released mass does not establish ambient concentration, exposure, health effect or permit compliance.
  • The reporting threshold is a disclosure gate, not an emission limit, target or safe level.

Interpret this metric with the stated reporting boundary, period convention, value shape, and unit. Results prepared with different boundaries or conventions may not be directly comparable.

Measurement evidence supports the core record-specific claims described above. Corroborative evidence can support limitations, while compatibility and status sources provide their separately labelled context. None of these cards by itself determines an organisation's legal applicability, filing readiness, assurance status, or compliance conclusion.