Half-lives for alpha-HCH in Arctic lakes were up to 1.4 years, whereas in the Eastern Arctic Ocean enantioselective degradation resulted in a range of approximately 5 to 17 years.
北极地区湖中甲型六氯环己烷的半衰期最高为1.4 年，而在东部北冰洋，对应选择降解导致半衰期大概在5至17年之间。