tritium

A massive leak of tritium, a radioactive isotope of hydrogen, occurred earlier this month at the Tricastin nuclear power plant, one of the oldest in France, when subsequent radiation levels recorded in groundwater below it reached 28,900 becquerels per litre. Both the plant’s operator, EDF, and the French nuclear safety watchdog, the ASN, insist that the spill has been contained. But, as Jade Lindgaard reports, despite that claim it appears inevitable that that the radioactive effluent will pollute the local environment.

Last month, the French nuclear safety authority published a report in which it recognised that the existence of a leukaemia cluster around the nuclear waste reprocessing plant of La Hague, in Normandy, is "possible". While radioprotection experts in France and abroad have long regarded the dangers of low-level radiation as negligible, the study by the Autorité de Sûreté Nucléaire (ASN) was highly significant especially because it rings an alarm bell for populations close to every type of nuclear plant. Patricia Brett reports.