Concept information
Preferred term
臭氧层损耗
Definition
- 脆弱的臭氧保护层被地球上释放的化学物质所破坏。破坏大气层臭氧的主要化学物质是在冰箱和气雾剂中使用的氯氟烃，包括清洁行业，以及使用灭火器。这些化学物质释放的氯和溴在高活性状态下，会对臭氧造成损害。在过去30年里，南极地区的臭氧水平已经下降了近40％，在某几个月甚至会出现卫星可观测到的“臭氧空洞”。
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URI
http://www.eionet.europa.eu/gemet/concept/5994
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