Disposal trend monitoring of the North Channel sewage sludge disposal site (1985-)

Data set information

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Data holding centreNorthern Ireland Environment Agency, Water Management Unit
CountryUnited Kingdom  United Kingdom
Time periodFrom 1985 onwards
Geographical area

Dredge and Sludge disposal grounds in Northern Ireland


Insect and earthworm taxonomy-related abundance per unit area of the bed; Sediment grain size parameters; Zoobenthos taxonomic abundance; Zoobenthos taxonomy-related counts; Bacteria taxonomic abundance in sediment; Nitrogen concentrations in sediment; Carbon concentrations in sediment; Fauna abundance per unit area of the bed; Inorganic chemical composition of sediment or rocks


Sediment grabs; elemental analysers; atomic absorption spectrometers; nutrient analysers; in-situ particle sizers


Under the Food and Environment Protection Act (1985) (FEPA), the Department of the Environment (Northern Ireland) is required to undertake routine monitoring of all sewage sludge and dredge disposal sites under its charge. The aim of the study is to establish whether or not there is any change in the quality of the sea bed in the vicinity of the disposal site that could be the result of the sewage discharge. Monitoring is usually conducted on a roling programme of 1 site per year during April prior to the main summer macrofaunal recruitment period. Each sample site is monitored for macrofaunal abundance and type, total organic carbon, Zn, Ni, Pb, Cu, Cr, Hg, Cd, particle size analysis and Clostridium perfringes.

OriginatorsNorthern Ireland Environment Agency, Water Management Unit
OrganisationNorthern Ireland Environment Agency, Water Management Unit
ContactFreedom of Information Officer

Northern Ireland Environment Agency, Water Management Unit
17 Antrim Road
County Antrim
BT28 3AL
United Kingdom

Telephone02890 546677
Collating centreBritish Oceanographic Data Centre
Local identifier1073004
Global identifier805
Last revised2010-11-22