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世界卫生组织关注与人类活动有关的化学物,如氯氟化碳(CFCS)和氟利昂,由于它们消耗同温层氧,导致紫外线增加,从而带来潜在的健康影响。虽然关于大气层中臭氧的未来趋向仍不明朗,但臭氧的持续降低,将使相应增加的紫外线强度在今后几十年对全世界人民的健康产生明显的不利影响。 增加紫外线暴露的潜在后果如此严重,以致成为1992年在里约热内卢召开的联合国环境和发展会议的主要议题。在那次会议通过的第21项议程紧急建议进行紫外线健康影响的研究,并采取适当措施减轻其危害。
WHO is concerned about human activities related chemicals, such as CFCs and freons, which have potential health effects due to their depletion of stratospheric oxygen, which results in an increase in UV light. While the future of ozone in the atmosphere is still uncertain, the continued decline in ozone will have a corresponding adverse effect on the health of people worldwide, with correspondingly increased levels of UV light in the coming decades. The potential consequences of increasing UV exposure have been so severe that they have become the major topics for the United Nations Conference on Environment and Development held in Rio de Janeiro in 1992. The 21st agenda, which was adopted at that meeting, urgently recommended studies on the health effects of UV light and take appropriate measures to mitigate the harmful effects.