| incorporation of organic tritium (3h) by marine organisms and sediment in the severn estuary/bristol channel (uk). | discharges of tritium (3h) into the severn estuary/bristol channel (uk) arise from the authorized release of wastes from nuclear power plants at hinkley point and berkley/oldbury and from the nycomed-amersham radiochemical plant, via the sewer system, at cardiff. the wastes from the nuclear power plants probably consist almost entirely of 3h2o, whereas those from the radiochemical plant also include uncharacterized 3h labelled organic compounds. the total 3h concentrations in demersal fish and o ... | 2001 | 11693639 |