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dc.contributor.authorGray, Nicholas Frederick
dc.date.accessioned2017-08-18T13:12:26Z
dc.date.available2017-08-18T13:12:26Z
dc.date.issued2017-08
dc.identifier.citationNicholas Frederick Gray, 'A SUBSTRATE CLASSIFICATION INDEX FOR THE VISUAL ASSESSMENT OF THE IMPACT OF ACID MINE DRAINAGE IN LOTIC SYSTEMS', [report], Tigroney Press, 2017-08, Technical Report (Water Technology Research), 24, July 1995 (reissued 2017-08)
dc.identifier.isbn9781912290161
dc.identifier.urihttp://hdl.handle.net/2262/81714
dc.description.abstractThe impact of acid mine drainage (AMD) on lotic receiving waters is complex and difficult to assess. While low pH, elevated sulphate and metals all characterize AMD these vary both spatially and temporally, with high river dilutions resulting in low absolute concentrations which are difficult to measure. From field observations the best indications of AMD contamination of lotic systems appear to be the brownish- yellow precipitates of iron (Ill) hydroxide, high densities of chironomids, and the absence of macrophytes. Using these observations a simple index based on the degree of deposition of ochre on the river substrate, and the level of floc formation, has been devised. The index is purely a descriptive one and is calculated rapidly using a visual inspection of individual sites. The derived index values are related to the biological impact that can be expected.en
dc.language.isoenen
dc.publisherTigroney Pressen
dc.rightsYen
dc.subjectAcid mine drainageen
dc.subjectSedimentationen
dc.subjectPollution indexen
dc.subjectVisual indexen
dc.subjectWater quality indexen
dc.subjectWater quality assessmenten
dc.subjectWater pollutionen
dc.subjectRiver sedimenten
dc.subjectRiver water qualityen
dc.titleA SUBSTRATE CLASSIFICATION INDEX FOR THE VISUAL ASSESSMENT OF THE IMPACT OF ACID MINE DRAINAGE IN LOTIC SYSTEMSen
dc.typereporten
dc.contributor.sponsorEuropean Unionen
dc.type.supercollectionedepositireland
dc.publisher.placeirelanden
dc.description.version1st edition (reissued)en
dc.relation.ecprojectidinfo:eu-repo/grantAgreement/EC/FP7/EV5V-CT93-0248
dc.rights.ecaccessrightsopenAccess
dc.contributor.sponsorGrantNumberEV5V-CT93-0248en
dc.relation.ispartofseriesdateJuly 1995 (reissued 2017-08)en
dc.relation.ispartofseriestitleTechnical Report (Water Technology Research)en
dc.relation.ispartofseriesvolume24en
dc.rights.holderWater Technology Researchen
dc.relation.relatedtoISBN (print version) 1872220258
dc.description.noteFirst Published in print format July 1995. Reissued in pdf format August 2017en


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