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 The Dangerous Substances Directive was repealed in 2012 following the introduction of the Water Framework Directive (2000/60/EC), which includes monitoring and assessment of a wide range of chemicals in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.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS116306
- Teitl Amgen
-
- AfA016 Dangerous Substances List I / AFA017 Dangerous Substances List II
- Laith Metadata
- English
- Datganiad
-
Data exists from 1995 until 2011 when the Dangerous Substances Directive was repealed.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.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2016-12-01
Ystod amser
- Dyddiad cychwyn
- 1995-01-01
- Dyddiad gorffen
- 2012-12-31
- Categori pwnc
-
- Environment
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Database
Database
()
- Math
-
MS Access Database
-
Database
Database
()
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
Data exists from 1995 until 2011 when the Dangerous Substances Directive was repealed.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.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
-
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.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© CNC/NRW NRW does NOT grant permission to third parties to re-use or disseminate this dataset.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313136333036 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-30T14:40:48.775Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0