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UK CRITICAL LOADS AND DYNAMIC MODELLING




BREADCRUMB

 1. UK Critical Loads and Dynamic Modelling



This project provides the key mechanism by which the scientific understanding of
the effects of nitrogen and sulphur deposition on terrestrial and aquatic
ecosystems is translated into policy-relevant predictions of the spatial extent
and timescales of damage and recovery.  It brings together the mapping and
modelling of critical loads and critical levels, pollutant deposition and
concentrations, to generate critical load and critical level exceedance data. 
Exceedance maps and statistics are updated annually to provide information on
the areas of sensitive habitats and designated sites at risk from the adverse
impacts of acidification and eutrophication.  Summary statistics by habitat and
country (within the UK) are used to monitor progress in reducing the areas at
risk from air pollution over time.

The project also provides the UK National Focal Centre (NFC) for critical loads
mapping and modelling activities and is responsible for generating and
submitting UK critical loads data in response to calls under the Working Group
on Effects of the UNECE Convention on Long-Range Transboundary Air Pollution.

This work is funded by Defra under contract AQ0826: Mapping and Modelling of
Critical Loads and Critical Levels Exceedance.

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THE MODELS

Dynamic models extend the critical loads concept, providing predictions of the
timing of change.  They are used both to simulate future trajectories of change
under different deposition scenarios, and to estimate...

What Are Dynamic Models?


YOU MAY ALSO BE INTERESTED IN...

 * UK Pollutant Deposition
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PARTNERS

 * Natural Environment Research Council (NERC)
 * Defra

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