The study found a 37 percent increase in emergency room visits for people with symptoms of heart failure during a three day period of dense smoke exposure and the following five days.
Three emergency workers at Japan's crippled nuclear plant were hospitalized after exposure to high levels of radiation last week.
上周，在日本受损核电站执行紧急任务的三名工作人员接触到大量核辐射后，已被送到医院接受治疗。
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L Establish emergency contingency plans and ensure workers receive suitable and sufficient information, instruction and training on exposure control during emergencies.