{"accessLimitation":{"value":"noLimitations","availability":"Available","description":"Access to the resource is not subject to any access limitations and is available to all users without restriction.","uri":"http://vocab.nerc.ac.uk/collection/N07/current/UNRS/"},"authors":[{"familyName":"Bealey","givenName":"W.J.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"author","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0003-3708-5864","fullName":"Bealey, W.J."},{"familyName":"Martin Hernandez","givenName":"C.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"author","email":"enquiries@ceh.ac.uk","fullName":"Martin Hernandez, C."},{"familyName":"Levy","givenName":"P.E.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"author","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0002-8505-1901","fullName":"Levy, P.E."},{"familyName":"Stedman","givenName":"J.R.","organisationName":"Ricardo Energy & Environment","role":"author","email":"john.stedman@ricardo.com","fullName":"Stedman, J.R."}],"availability":"Available","boundingBoxes":[{"westBoundLongitude":-8.648,"eastBoundLongitude":1.768,"southBoundLatitude":49.864,"northBoundLatitude":60.861,"bounds":"{\"type\": \"Feature\",      \"properties\": {},      \"geometry\": {        \"type\": \"Polygon\",        \"coordinates\": [[[-8.648, 49.864], [-8.648, 60.861], [1.768, 60.861], [1.768, 49.864], [-8.648, 49.864]]]      }}","coordinates":"[[[-8.648, 49.864], [-8.648, 60.861], [1.768, 60.861], [1.768, 49.864], [-8.648, 49.864]]]"}],"citation":{"authors":["Bealey, W.J.","Martin Hernandez, C.","Levy, P.E.","Stedman, J.R."],"bibtex":"https://catalogue.ceh.ac.uk/documents/4538e272-f276-472f-b11c-fcf84e2cc306/citation?format=bib","day":11,"doi":"10.5285/4538e272-f276-472f-b11c-fcf84e2cc306","month":12,"publisher":"NERC Environmental Information Data Centre","resourceTypeGeneral":"dataset","ris":"https://catalogue.ceh.ac.uk/documents/4538e272-f276-472f-b11c-fcf84e2cc306/citation?format=ris","title":"Deposition and concentration of nitrogen and sulphur for protected sites in the UK, 2016-2018","url":"https://doi.org/10.5285/4538e272-f276-472f-b11c-fcf84e2cc306","year":2020},"custodians":[{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"custodian","email":"info@eidc.ac.uk"}],"datasetReferenceDate":{"publicationDate":"2020-12-11"},"description":"This dataset provides deposition values of sulphur and nitrogen deposition and concentration values for ammonia (NH3), sulphur dioxide (SO2) and nitrogen oxide (NOx) on the UK nature conservation protected sites, averaged over the years 2016 to 2018. The dataset also includes calculated minimum, maximum and gridded average values for each site. Protected nature sites covered are:\n(i) Special Areas of Conservation (SAC)\n(ii) Special Protection Areas (SPA)\n(iii) Sites of Special Scientific Interest (SSSI).\n\nThe data consist of values of nitrogen and acid deposition, and concentrations of ammonia (NH3) based on the Concentration Based Estimated Deposition (CBED), and concentrations of NOx and SO2 using the Pollution Climate Mapping (PCM) model.\n\nNitrogen and acid deposition data is also given for specific habitat types including:\n(i) moorland/short vegetation everywhere,\n(ii) forest everywhere, and\n(iii) the grid square average over multiple land cover types (i.e. arable, grassland, forest, moorland, urban)\n\nThese habitat-specific data are recommended for use with critical loads for the calculation of critical load exceedances using the relevant deposition/habitat type.","distributionFormats":[{"name":"Comma-separated values (CSV)","type":"text/csv","version":"unknown"}],"distributorContacts":[{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"distributor","email":"info@eidc.ac.uk"}],"id":"4538e272-f276-472f-b11c-fcf84e2cc306","incomingCitationCount":0,"infoLinks":[{"url":"https://data-package.ceh.ac.uk/sd/4538e272-f276-472f-b11c-fcf84e2cc306.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"}],"inspireThemes":[{"theme":"Protected Sites","uri":"http://inspire.ec.europa.eu/theme/ps"}],"keywordsOther":[{"value":"source attribution"},{"value":"nitrogen deposition"},{"value":"natura 2000"},{"value":"ecosystem impacts from atmospheric pollution"},{"value":"acid deposition","uri":"http://www.eionet.europa.eu/gemet/concept/42"},{"value":"critical load","uri":"http://www.eionet.europa.eu/gemet/concept/1865"},{"value":"atmospheric pollution","uri":"http://www.eionet.europa.eu/gemet/concept/636"}],"keywordsTheme":[{"value":"Pollution","uri":"http://onto.nerc.ac.uk/CEHMD/topic/15"}],"licences":[{"value":"This resource is available under the terms of the Open Government Licence","code":"license","uri":"https://eidc.ac.uk/licences/ogl/plain"}],"lineage":"The Air Pollution Information System (APIS), through the 'Site Relevant Critical Loads' tool, provides critical loads for acidity and nitrogen and critical levels for ammonia, sulphur dioxide and nitrogen oxides for designated features within every SAC, SPA or A/SSSI in the UK. In addition, deposition and concentration data for nitrogen and sulphur pollutants are provided at each site to give an estimate of critical load/level exceedance.\n\nThe data provided is based on pollutant deposition gridded maps for nitrogen and acid deposition and concentration maps of ammonia, nitrogen oxides and sulphur, which are overlayed to a GIS shape file of site boundaries in the UK (e.g. SAC, SPA, SSSI). These gridded maps were then clipped to provide the pollutant values for each grid square including the area of the clipped grid. The resulting data was then queried to generate site statistics in the form of a minimum, maximum and area weighted average values for each of the pollutants.\n\nFor nitrogen and acid deposition values and ammonia concentrations, 3 year average pollutant maps were used at a resolution of 5 x 5 km from the CBED model for the years 2016-2018. For nitrogen dioxide and sulphur dioxide concentrations the 1 x 1 km PCM model was used based on the 3 year average (2016-2018). Deposition values are generated for specific habitat types (forest and semi-natural) to be used in critical load exceedance calculations.\nThe full methodology is available in the contextual metadata linked to this record.\n\nThe work of APIS is jointly funded between the Centre for Ecology & Hydrology and the UK pollution and conservation agencies including Natural Resources Wales (NRW), the Environment Agency, Northern Ireland Environment Agency, Natural England, the Joint Nature Conservation Committee (JNCC), the Scottish Environment Protection Agency (SEPA), and Scottish Natural Heritage (SNH).","metadataDate":"2026-06-29T18:00:47","notGEMINI":false,"onlineResources":[{"url":"https://catalogue.ceh.ac.uk/datastore/eidchub/4538e272-f276-472f-b11c-fcf84e2cc306","name":"Download the data","description":"Download a copy of this data","function":"fileAccess","type":"OTHER"},{"url":"https://data-package.ceh.ac.uk/sd/4538e272-f276-472f-b11c-fcf84e2cc306.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"}],"pointsOfContact":[{"familyName":"Bealey","givenName":"W.J.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"pointOfContact","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0003-3708-5864","address":{"deliveryPoint":"Bush Estate","city":"Penicuik","administrativeArea":"Midlothian","postalCode":"EH26 0QB","country":"United Kingdom"},"fullName":"Bealey, W.J.","pointOfContact":"UK Centre for Ecology & Hydrology"}],"publicationDate":"2020-12-11T00:00:00.000Z","publishers":[{"organisationName":"NERC Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"publisher","email":"info@eidc.ac.uk"}],"relationships":[{"relation":"http://purl.org/dc/terms/isPartOf","target":"291de6a9-5f54-4901-8c57-c1b62aa7a112"}],"resourceIdentifiers":[{"code":"https://catalogue.ceh.ac.uk/id/4538e272-f276-472f-b11c-fcf84e2cc306"},{"code":"10.5285/4538e272-f276-472f-b11c-fcf84e2cc306","codeSpace":"doi"}],"resourceType":{"value":"dataset"},"responsibleParties":[{"familyName":"Bealey","givenName":"W.J.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"author","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0003-3708-5864","fullName":"Bealey, W.J."},{"familyName":"Martin Hernandez","givenName":"C.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"author","email":"enquiries@ceh.ac.uk","fullName":"Martin Hernandez, C."},{"familyName":"Levy","givenName":"P.E.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"author","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0002-8505-1901","fullName":"Levy, P.E."},{"familyName":"Stedman","givenName":"J.R.","organisationName":"Ricardo Energy & Environment","role":"author","email":"john.stedman@ricardo.com","fullName":"Stedman, J.R."},{"familyName":"Bealey","givenName":"W.J.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"pointOfContact","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0003-3708-5864","address":{"deliveryPoint":"Bush Estate","city":"Penicuik","administrativeArea":"Midlothian","postalCode":"EH26 0QB","country":"United Kingdom"},"fullName":"Bealey, W.J.","pointOfContact":"UK Centre for Ecology & Hydrology"},{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"custodian","email":"info@eidc.ac.uk"},{"organisationName":"NERC Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"publisher","email":"info@eidc.ac.uk"},{"organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"rightsHolder","email":"enquiries@ceh.ac.uk"},{"organisationName":"Natural Resources Wales","role":"rightsHolder","email":"enquiries@naturalresourceswales.gov.uk"},{"organisationName":"Environment Agency","role":"rightsHolder","email":"enquiries@environment-agency.gov.uk"},{"organisationName":"Northern Ireland Environment Agency","role":"rightsHolder","email":"nieainfo@daera-ni.gov.uk"},{"organisationName":"Natural England","role":"rightsHolder","email":"enquiries@naturalengland.org.uk"},{"organisationName":"Joint Nature Conservation Committee","role":"rightsHolder","email":"enquiries@ceh.ac.uk"},{"organisationName":"Scotland and Northern Ireland Forum for Environmental Research (SNIFFER)","role":"rightsHolder","email":"enquiries@ceh.ac.uk"},{"organisationName":"Scottish Environment Protection Agency","role":"rightsHolder","email":"enquiries@ceh.ac.uk"},{"organisationName":"Scottish Natural Heritage","role":"rightsHolder","email":"INVERNESS_SERVICE_DELIVERY_TEAM@nature.scot"}],"rightsHolders":[{"organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"rightsHolder","email":"enquiries@ceh.ac.uk"},{"organisationName":"Natural Resources Wales","role":"rightsHolder","email":"enquiries@naturalresourceswales.gov.uk"},{"organisationName":"Environment Agency","role":"rightsHolder","email":"enquiries@environment-agency.gov.uk"},{"organisationName":"Northern Ireland Environment Agency","role":"rightsHolder","email":"nieainfo@daera-ni.gov.uk"},{"organisationName":"Natural England","role":"rightsHolder","email":"enquiries@naturalengland.org.uk"},{"organisationName":"Joint Nature Conservation Committee","role":"rightsHolder","email":"enquiries@ceh.ac.uk"},{"organisationName":"Scotland and Northern Ireland Forum for Environmental Research (SNIFFER)","role":"rightsHolder","email":"enquiries@ceh.ac.uk"},{"organisationName":"Scottish Environment Protection Agency","role":"rightsHolder","email":"enquiries@ceh.ac.uk"},{"organisationName":"Scottish Natural Heritage","role":"rightsHolder","email":"INVERNESS_SERVICE_DELIVERY_TEAM@nature.scot"}],"spatialReferenceSystems":[{"code":"http://www.opengis.net/def/crs/EPSG/0/27700","title":"OSGB 1936 / British National Grid"}],"spatialRepresentationTypes":["textTable"],"spatialResolutions":[{"distance":"5000","uom":"urn:ogc:def:uom:EPSG::9001"},{"distance":"1000","uom":"urn:ogc:def:uom:EPSG::9001"}],"supplemental":[{"name":"APIS website","description":"APIS Site Relevant Critical Loads and Source Attribution\n","url":"http://www.apis.ac.uk/","function":"website"}],"temporalExtents":[{"begin":"2016-01-01","end":"2018-12-31"}],"title":"Deposition and concentration of nitrogen and sulphur for protected sites in the UK, 2016-2018","topicCategories":[{"value":"environment","uri":"http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/environment"}],"topics":["http://onto.nerc.ac.uk/CEHMD/topic/15"],"type":"dataset","uri":"https://catalogue.ceh.ac.uk/id/4538e272-f276-472f-b11c-fcf84e2cc306","useConstraints":[{"value":"This resource is available under the terms of the Open Government Licence","code":"license","uri":"https://eidc.ac.uk/licences/ogl/plain"},{"value":"© UK Centre for Ecology & Hydrology, Natural Resources Wales, Environment Agency, the Northern Ireland Environment Agency, Natural England, the Joint Nature Conservation Committee (JNCC), Scotland and Northern Ireland Forum for Environmental Research (SNIFFER), the Scottish Environment Protection Agency (SEPA), Scottish Natural Heritage (SNH)","code":"copyright"}]}