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An emergency is a situation that poses an immediate risk to health, life, property, or environment.〔(【引用サイトリンク】url=http://www.ukresilience.info/upload/assets/www.ukresilience.info/15mayshortguide.pdf )〕 Most emergencies require urgent intervention to prevent a worsening of the situation, although in some situations, mitigation may not be possible and agencies may only be able to offer palliative care for the aftermath. While some emergencies are self-evident (such as a natural disaster that threatens many lives), many smaller incidents require that an observer (or affected party) decide whether it qualifies as an emergency. The precise definition of an emergency, the agencies involved and the procedures used, vary by jurisdiction, and this is usually set by the government, whose agencies (emergency services) are responsible for emergency planning and management. ==Defining an emergency== An incident, to be an emergency, conforms to one or more of the following: if it: * Poses an immediate threat to life, health, property, or environment * Has already caused loss of life, health detriments, property damage, or environmental damage * has a high probability of escalating to cause immediate danger to life, health, property, or environment In the United States, most states mandate that a notice be printed in each telephone book that requires that someone must relinquish use of a phone line, if a person requests the use of a telephone line (such as a ''party line'') if someone requests access to the line to report an emergency. State statures typically define an ''emergency'' as, "...a condition where life, health, or property is in jeopardy, and the prompt summoning of aid is essential."〔Some examples of state statutes defining ''emergency'' for this purpose: California Penal Code, Sec. 384;〕 Whilst most emergency services agree on protecting human health, life and property, the environmental impacts are not considered sufficiently important by some agencies. This also extends to areas such as animal welfare, where some emergency organisations cover this element through the 'property' definition, where animals owned by a person are threatened (although this does not cover wild animals). This means that some agencies do not mount an 'emergency' response where it endangers wild animals or environment, though others respond to such incidents (such as oil spills at sea that threaten marine life). The attitude of the agencies involved is likely to reflect the predominant opinion of the government of the area. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「emergency」の詳細全文を読む スポンサード リンク
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