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1.1.1.: Persistence

A substance fulfils the persistence criterion (P) in any of the following situations:
(a) the degradation half-life in marine water is higher than 60 days;
(b) the degradation half-life in fresh or estuarine water is higher than 40 days;
(c) the degradation half-life in marine sediment is higher than 180 days;
(d) the degradation half-life in fresh or estuarine water sediment is higher than 120 days;
(e) the degradation half-life in soil is higher than 120 days.