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Air
Scottish Pollutant Release Inventory (SPRI)
Radioactive substances
Our radioactive substances data return forms were revised in March 2026.
EASR sealed source data return (Excel, 49 kB)
EASR radioactive waste data return(Excel, 80 kB)
EASR intention to transfer radioactive waste/contaminated items for the first time (MS Word, 202 kB)
Offshore data return (Excel, 59 kB)
Waste
Waste da
Aquaculture Regulatory
The role of regulation in aquacultire and the process for applying for a licence to operate a fish farm.
The role of regulation in aquacultire and the process for applying for a licence to operate a fish farm.
Emamectin Benzoate position
The below statement sets out our interim position on the environmental standards that we will apply when assessing new applications to discharge or increase volumes of in-feed sea lice medicine containing emamectin benzoate.
We have requested that the UK Technical Advisory Group (UKTAG) consider all the available scientific evidence and make recommendations to Scottish
Exempt activity returns
SEPA gathers data annually on the type, quantity and geographical origin of the waste handled from operators of the following ‘complex’ exempt activities.
Paragraphs 7, 8(2), 10, 46 and 50.
Paragraphs 9 and 19 where the volume of waste used exceeds 2,500 cubic metres
Paragraph 12 where the volume of waste used exceeds 10 tonnes per year.
Operators are asked to submit their data returns using the
Strategic Environmental Assessment
Strategic Environmental Assessment (SEA) is a systematic process for identifying, reporting, proposing mitigation measures and monitoring environmental effects of plans, programmes and strategies. It aims to ensure that environmental issues are taken into account at every stage in the preparation, implementation, monitoring and review of plans, programmes and strategies of a public nature.
Strategic Environmental Assessment (SEA) is a systematic process for identifying, reporting, proposing mitigation measures and monitoring environmental effects of plans, programmes and strategies. It aims to ensure that environmental issues are taken into account at every stage in the preparation, implementation, monitoring and review of plans, programmes and strategies of a public nature.
Strategic Environmental Assessment (SEA) is a systematic process for identifying, reporting, proposing mitigation measures and monitoring environmental effects of plans, programmes and strategies. It aims to ensure that environmental issues are taken into account at every stage in the preparation, implementation, monitoring and review of plans, programmes and strategies of a public nature.
EU legi
Acknowledgements
Strategic Environmental Assessment (SEA) is a systematic process for identifying, reporting, proposing mitigation measures and monitoring environmental effects of plans, programmes and strategies. It aims to ensure that environmental issues are taken into account at every stage in the preparation, implementation, monitoring and review of plans, programmes and strategies of a public nature.
Strategic Environmental Assessment (SEA) is a systematic process for identifying, reporting, proposing mitigation measures and monitoring environmental effects of plans, programmes and strategies. It aims to ensure that environmental issues are taken into account at every stage in the preparation, implementation, monitoring and review of plans, programmes and strategies of a public nature.
Acknowledgements
SEPA gratefully acknowledges the cooperation and input that various parties have provided, including inter alia, the following organisations:
SEPA Product
Required Acknowledgements / Attribution Statements
River Flood Hazard Maps
Some features of this map are based on digital spatial data licensed from the UK Centre for Ecology & Hydrology © UKCEH. Defra, Met Office a
Modelling
Marine aquaculture modelling
Computer modelling is used as a guide to determining licensed discharge quantities of anti-parasitic chemicals and organic waste arising from marine fish-farm operations.
The modelling tools promoted by SEPA provide robust predictions in most cases, requiring relatively little site-specific information. Nevertheless, the quality of the model outputs is dependent upon g
Radioactive substances
Regulation of radioactive substances in Scotland
Regulation of radioactive substances in Scotland
We are transitioning to a new website, and the content from this section has moved to our BETA site.
Please go to our Radioactive substances topics page or our EASR authorisations page to find the information on:
Radioactive waste advisors
Radiological dose assessment tool
Environmental monitoring and assessment
Guidance and supporting documents
Radiological liaison groups i
Radioactive substances
We are transitioning to a new website, and the content from this section has moved to our BETA site.
Please go to our Radioactive substances topics page or our EASR authorisations page to find the information on:
Radioactive waste advisors
Radiological dose assessment tool
Environmental monitoring and assessment
Guidance and supporting documents
Radiological liaison groups i
Technical guidance
Further technical guidance
This page brings together a number of ancillary guidance documents and previous email bulletin information relating to modelling of marine fish-farms for CAR licence applications.
Auxiliary biomass sampling transect
In areas where the tidal residual current is weak, the auxiliary transect (site-specific sampling 2) may be aligned along a bearing reciprocal to the primary
Aquatic Classification
There are a number of significant environmental problems caused by a number of pressures, including diffuse and point source pollution, alterations to beds, banks and shores, alterations to water levels and flows and the presence of invasive non-native species. In order to measure these pressures and their potential effects, we use an aquatic classification system which covers rivers, lochs, estuaries, coastal and groundwater bodies. These are split into management units called water bodies, with a classification produced for each body (the number of water bodies between years varies slightly, as some water body boundaries are reviewed to ensure that they can be managed appropriately).
There are a number of significant environmental problems caused by a number of pressures, including diffuse and point source pollution, alterations to beds, banks and shores, alterations to water levels and flows and the presence of invasive non-native species.
In order to measure these pressures and their potential effects, we use an aquatic classification system which covers rivers, lochs, estuaries, coastal and groundwater bodies. These are split into management units called water bodies, with a classification produced for each body (the number of water bodies between years varies slightly, as some water body boundaries are reviewed to ensure that they can be managed appropriately).
We produce an annual Water Framework Directive (WFD) Classification for all the water bodies in Scotland.
Classification results for 2007 to the current year can be found on the Water Classification Hub.
Read the State of Scotland's Water Environment 2024 summary report (MS Word, 1.17 MB).
Most of our water environment is already in a good condition and subject to fewer pressures than most other E