Water Quality of Riverine Special Areas of Conservation (SACs) across Wales (2006-2012).
This data collection was required as part of the water quality assessment of various Special Areas of Conservation (SAC) for the monitoring round and report cycle 2006 to 2012. Water quality targets for designated riverine features are specified under the JNCC CSM Guidance. The targets are based on routine water quality monitoring and subsequent reporting. Water quality targets are assessed based on the chemistry, biology, phosphate, suspended solids and un-ionized ammonia. The dataset details the results of water quality target testing for the following rivers and associated SACs: - Afon Gwyrfai a Llyn Cwellyn SAC - Afon Eden and Cors Goch Trawsfynydd SAC - River Dee and Bala Lake / Afon Dyfrdwy a Llyn Tegid SAC - Afon Tywi / River Tywi SAC - Afon Teifi / Afon Teifi - Afonydd Cleddau SAC - River Usk SAC - River Wye SAC - Afon Glaslyn (Meirionnydd Oakwoods SAC)
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS115830
- Teitl Amgen
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- Water Quality Assessments for River Special Areas of Conservation: Second Habitats Directive Reporting Round (2006-2012)
- Ansawdd dwr Ardaloedd Cadwraeth Arbennig (ACA) afonol ledled Cymru (2006-2012).
- Laith Metadata
- English
- Datganiad
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The water quality was tested based on EA General Quality Assessment (GQA) which has 4 classifications; chemistry, biology, nutrients and aesthetics. Each classification is made up of 6 grades from A (very good) to F (bad). The water quality targets can vary depending on the sensitivity of the species or habitat, and whether they are mandatory or discretionary targets. Chemistry Classification: based on dissolved oxygen, biochemical oxygen demand and ammonia. Sampling: occurred 12 times a year over 3 years Biology Classification: Based on macro-invertebrate communities. Sampling: Kick samples collected in spring and autumn, in one year out of every three. Phosphate Classification: Based on Soluble Reactive Phosphorus (SRP). Sampling: Monthly basis at chemical sampling points. Suspended Solids Classification: Based on the Freshwater Fish Directive. Sampling: Based on annual mean suspended solids. Uni-ionised ammonia Classification: Measured against the target for the river habitat as a 95-percentile. Acidity Acid sensitive units have been identified and assessed using a risk assessment based on various data sources including the Acid Water Indicator Community (AWICS) invertebrate monitoring tool, UK pH and ANC standards, and critical load exceedance maps.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2013-03-31
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Documents
()
- Math
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[A] Report in .doc and .pdf format [B] Water quality results details of sampling location for all years .xls format
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Documents
()
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
The water quality was tested based on EA General Quality Assessment (GQA) which has 4 classifications; chemistry, biology, nutrients and aesthetics. Each classification is made up of 6 grades from A (very good) to F (bad). The water quality targets can vary depending on the sensitivity of the species or habitat, and whether they are mandatory or discretionary targets. Chemistry Classification: based on dissolved oxygen, biochemical oxygen demand and ammonia. Sampling: occurred 12 times a year over 3 years Biology Classification: Based on macro-invertebrate communities. Sampling: Kick samples collected in spring and autumn, in one year out of every three. Phosphate Classification: Based on Soluble Reactive Phosphorus (SRP). Sampling: Monthly basis at chemical sampling points. Suspended Solids Classification: Based on the Freshwater Fish Directive. Sampling: Based on annual mean suspended solids. Uni-ionised ammonia Classification: Measured against the target for the river habitat as a 95-percentile. Acidity Acid sensitive units have been identified and assessed using a risk assessment based on various data sources including the Acid Water Indicator Community (AWICS) invertebrate monitoring tool, UK pH and ANC standards, and critical load exceedance maps.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
- NRW Thesaurus
-
- river Gwyrfai (afon Gwyrfai)
- River Wye (Afon Gwy)
- Afon Eden
- river Tywi (afon Tywi)
- Afonydd Cleddau
- River Usk
- Special Areas of Conservation (SAC) - SAC monitoring
- water quality monitoring
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2023-12-31
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
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Water quality assessments for river special areas of conservation : second habitats directive reporting round ( 2006 - 2012 )
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
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There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© CNC/NRW There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313135383330 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-31T09:16:17.657Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
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1.0