UK Critical Load Exceedance Maps for Acidity and Nitrogen 2017-2019

2017-2019 UK data maps the Average Accumulated Exceedance of critical loads for acidity across eight habitats and nutrient nitrogen across thirteen habitats. It quantifies excess atmospheric deposition above levels set to protect sensitive ecosystems at a 1x1 km resolution, derived from 5x5 km concentration-based deposition estimates.

Use Cases

• Model habitat risk by correlating acidity AAE values with the eight listed habitat types to identify most impacted areas.
• Analyze spatial patterns of nutrient nitrogen AAE across the thirteen habitats to prioritize emission reduction zones.
• Assess policy effectiveness by tracking changes in AAE for acidity and nitrogen deposition between 2017 and 2019.

Strengths

• 1x1 km spatial resolution provides detailed national coverage for analysis.
• Covers two distinct pollutant types (acidity and nutrient nitrogen) for comparative assessment.
• Based on 5x5 km Concentration Based Estimated Deposition data for 2017-2019, providing a modeled foundation.

Limitations

• Data is static for a three-year period (2017-2019) and may not reflect current conditions.
• Exceedance calculations rely on modeled deposition inputs, introducing potential estimation errors.
• Specific columnar data structure and sample values are unavailable, limiting immediate analytical clarity.

Provenance

Source

Environmental Information Data Centre

Collection Method

Calculated using UK 5x5 km Concentration Based Estimated Deposition data, generated under Defra-funded work.

Time Range

2017-2019

Freshness

null

Geography

United Kingdom