Compliance Data

Since 2003, the Gibraltar Environmental Agency, on behalf of HM Government of Gibraltar has undertaken a compliance assessment in accordance with the European Air Quality Directives (2008/50/EC and 2004/107/EC) and formally reported to the European Commission’s Central Data Repository (CDR). Since leaving the European Union, Gibraltar remains closely aligned with the requirements and ambition of these Directives and continues to undertake this assessment annually. The purpose of the Assessment is to classify the territory against the Limit Values, Target Values and Long-term Objectives using high quality monitoring data. The assessment has been made using monitoring data from the Gibraltar Air Quality Monitoring Network. The most recently available network design (Monitoring Regime Assessment) report explains the methodology used to determine the monitoring configuration. The monitoring network is reviewed every 5-years (at a minimum) to ensure it meets the requirements and represents an up-to-date pollution climate of Gibraltar.

The purpose of this webpage is to provide a high-level summary of compliance against the individual pollutant metrics (summarised below). It includes:

a summary table of the relevant pollutant metrics and legislative thresholds
a compliance summary for all years to provide context over time (since 2005)
a repository for downloading the final XML (machine-readable) format compliance data files that were formerly submitted to the CDR. For submissions prior to 2020 please see the European Environment Agency website .

Pollutant	Averaging Period	Objective	Objective Type
NO₂	Annual mean	40 µg m^-3	Limit Value
NO₂	Hourly mean	200 µg m^-3, 18 permitted exceedances each year	Limit Value
SO₂	Hourly mean	350 µg m^-3, with 24 permitted exceedances each year	Limit Value
SO₂	24-hour mean	125 µg m^-3, with 3 permitted exceedances each year	Limit Value
PM₁₀	Annual mean	40 µg m^-3	Limit Value
PM₁₀	24-hour mean	50 µg m^-3, with 35 permitted exceedances each year	Limit Value
PM_2.5	Annual mean	20 µg m^-3	Limit Value (stage 2 – came into force 01/01/2020)
Benzene	Annual mean	5 µg m^-3	Limit Value
CO	maximum daily 8-hour mean	10 mg m^-3	Limit Value
Ozone	maximum daily 8-hour mean	120 µg m^-3, not to be exceeded on more than 25 days per calendar year averaged over three years	Target Value
Ozone	maximum daily 8-hour mean	120 µg m^-3	Long Term Objective
As	Annual mean	6 ng m^-3	Target Value
Cd	Annual mean	5 ng m^-3	Target Value
Ni	Annual mean	20 ng m^-3	Target Value
Pb	Annual mean	0.5 µg m^-3	Limit Value
Benzo(a)pyrene (B(a)P)	Annual mean	1 ng m^-3	Target Value

Compliance over time

Pollutant	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023
PM₁₀	✓	✓	❌	❌	✓	❌	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
PM_2.5	-	-	-	-	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
NO₂	✓	✓	✓	❌	❌	✓	✓	✓	✓	✓	❌	❌	❌	✓	✓	✓	✓	✓	✓
Ozone	❌	❌	❌	✓	❌	❌	❌	❌	❌	❌	❌	❌	❌	✓	✓	✓	❌	✓	✓
SO₂	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
CO	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
Benzene	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
Benzo(a)pyrene (BaP)	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
Pb	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
As	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
Cd	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
Ni	✓	✓	✓	✓	✓	✓	✓	❌	❌	❌	✓	✓	✓	✓	✓	✓	✓	✓	✓

✓ = compliant

✓ = compliant, after correction for natural sources (sea salt, African dust) applied

✓ = compliant, resulting from higher threshold (Limit Value plus Margin of Tolerance, 60 µg m^-3) for Time Extension period

❌ = non-compliant

Air Quality Compliance XML files

The download links below provide the XML files for Data flows B to G. The table below summarises the name and role of each data flow. For more comprehensive guidance on the architecture and content of these data flows please see the guidance document.

Data flow	Title/Content	Explanation
B	Information on zones and agglomerations	Zone geometry data, area, population
C	Information on the assessment regime	For each pollutant and metric, the measured and modelled data used in the assessment
D	Information on the assessment method	Meta information for measurements (site locations, distance from road, instrument details, analysis methodologies) and models (not produced for Gibraltar)
E1a	Information on primary validated assessment data (measurements)	Base concentration data at different time resolutions according to measurement method
E1b	Information on primary validated assessment data (modelled)	Modelled background and roadside data. Not produced for Gibraltar
E2a	Information on primary up-to-date assessment data (measurements)	Near real-time data stream as it comes from the measurement instrument (prior to data QA/QC processes), intended to provide public information on current ambient levels.
G	Information on the attainment of environmental objectives	The declared compliance status of zones and agglomerations for each Limit Value, Target Value and Long-term Objective

Note that Data flow F is not compiled by the reporting Member States but calculated centrally from Dataflow E1a by the European Environment Agency.
Note that annual modelling is not a component of Gibraltar’s compliance reporting approach so neither model metadata in Data flow D or Data flow E1b are provided for Gibraltar.
For data submissions prior to 2020, please see the European Environment Agency website.

Cookies on Air Quality in Gibraltar

Compliance Data

Compliance over time

Air Quality Compliance XML files