The UV index (UVI) is the international standard for UV measurement, developed by WHO, the United Nations Environment Program and the World Meteorological Organization.

紫外线指数是由世卫组织、联合国环境规划署和世界气象组织共同制定的紫外线测量国际标准。

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The World Health Organization has listed indoor air pollution as one of five environment factors that badly endanger the public health.

室内空气污染已被世界卫生组织列为对公众健康危害最大的五种环境因素之一。

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This article expounds the important role of standard information service and expects competitive environment and opportunities after China's accession to the World Trade Organization (WTO).

本文论述了标准情报工作的重要性，预测了中国加入WTO后，中国企业面临的竞争环境。

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Assistant Director-General for Health Security and Environment at the World Health Organization, Dr.Keiji Fukuda, urged people to practice good hygiene, including washing their hands and covering their mouth when they cough, and if they become sick to stay home.

VOA: standard.2009.04.29

Professor David Heymann, a former assistant director general for health security and environment at the World Health Organization, said there had historically been a split between the industrialised and developing countries.

BBC: Should the US and Russia destroy their smallpox stocks?