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Site Relevant Critical Loads
Search by Location
habitat/pollutant impacts
Biomonitoring
Contact

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Usnea hirta

Usnea hirta

Usnea hirta

Usnea hirta at a clean site.

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Nitrogen critical load ranges for use in impact assessments
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Pollutants

Acid deposition
Ammonia
Dusts
Halogens
Heavy Metals
Methane
Nitrogen Oxides (NOx)
Nitrogen deposition
Ozone
Persistent Organic Pollutants (POPs)
Sulphur Dioxide
Volatile Organic Compounds (VOCs)

Ecosystems

Arable habitats
Bog habitats
Coastal and marine habitats
Freshwater habitats
Heath and montane scrub
Parkland trees and Hedgerows
Rocky habitats
Semi- natural Grassland habitats
Wetlands habitats
Woodlands

Legislation

Air Quality Strategy (UK)
Ambient Air Quality Directive
Birds Directive
Conservation Designations
Convention on Biological Diversity
Convention on Long-Range Transboundary Air Pollution
Countryside and Rights of Way Act 2000 (CROW Act)
Environment (Wales) Act
Environmental Permitting Regulations (EPR)
Habitats Directive
Industrial Emissions Directive (IED)
Local Air Quality Management
National Emission Ceilings Directive
Natural Environment and Rural Communities (NERC) Act
Nature Conservation ( Scotland ) Act 2004
Planning (Wales) Act 2015
UK Biodiversity Framework
Well-being of Future Generations (Wales) Act
Wildlife and Countryside Act 1981

Issues

Air Pollution and Human Health
Air Pollution from Ships
Biomonitoring
Climate Change
Direct toxicity of atmospheric pollutants
Ecosystem Services and Air Pollution Impacts
Guide to Critical Loads & Levels
Impacts of air pollution on Lichens and Bryophytes (mosses and liverworts)
Reduction of visibility
Volcano emission effects

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