Historical Dangerous Substances List I and List II
Data was collated annually until the end of 2011 for the Dangerous Substances Directive (76/464/EEC) on the discharge of dangerous substances to surface waters. The Dangerous Substances Directive was repealed in 2012 following the introduction of the Water Framework Directive (2000/60/EC), which includes monitoring and assessment of a wide range of chemicals in surface waters. List I covers substances that are particularly toxic or persistent, or may tend to accumulate in the environment. List II covers substances whose effects are less serious. List I includes 20 substances and List II has 67 substances. Every listed dangerous substance has a concentration limit known as an Environmental Quality Standard (EQS). The EQS is usually an upper concentration, with the exception of pH, which has both upper and lower limits. It is set for the receiving watercourse and not the discharge itself. The dangerous substance is not believed to be detrimental to aquatic life at any concentration below its EQS limit. The EQS varies for each substance and can be different for fresh, estuarine or coastal waters.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS116306
- Alternative Title
-
- AfA016 Dangerous Substances List I / AFA017 Dangerous Substances List II
- Metadata Language
- English
- Lineage
-
Data exists from 1995 until 2011 when the Dangerous Substances Directive was repealed. The Historical Dangerous Substances is supplied in a database databases and gives information for both the List I and II substances.
- Dataset Reference Date (Publication)
- 2016-12-01
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Distribution
- Format Type and Description
-
-
Database
()
- Specification
-
MS Access Database
-
Database
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
-
Data exists from 1995 until 2011 when the Dangerous Substances Directive was repealed. The Historical Dangerous Substances is supplied in a database databases and gives information for both the List I and II substances.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
-
Access to this data may be restricted under relevant legislation. NRW may NOT publish or disseminate the data. Requests should be referred to NRW's Access to Information Officer.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
-
© CNC/NRW NRW does NOT grant permission to third parties to re-use or disseminate this dataset.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313136333036 XML
- Metadata Language
- English
- Resource type
- Dataset
- Metadata Date
- 2024-05-30T14:40:48.775Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0