一起甲醛浓度超标引起的幼儿园儿童聚集性流鼻血事件的调查与分析

The investigation and analysis of an epidemic caused by excessive indoor form formaldehyde concentration with children nosebleeds

目的对南昌某幼儿园发生的一起以流鼻血为主要症状的事件开展调查,为处理类似事件提供依据。方法开展现场流行病学调查,并在这家幼儿园分楼层进行室内空气监测及采样。结果该事件共报告病例14例,发病率8.24%(14/170)。根据3家不同检测机构的监测结果,显示幼儿园室内甲醛浓度高于《室内空气质量标准》GB/T18883-2002(0.10mg/m^3)结论这是一起由室内甲醛浓度超标导致的以流鼻血为主要症状的事件,应防范学校室内空气甲醛污染引起的健康损害。

Objective To investigate an epidemic of nosebleeds in certain kindergarten in Nanchang,and to provide evidence for dealing with similar cases.Methods Field epidemiological investigation was carried out,and indoor air was monitored and sampled in the floors of hekindergarten.Results A total of 14 cases were reported,with an incidence of 8.24%(14/170).According to the monitoring results of three testing companies,the indoor formaldehyde concentration in zhe kindergarten in Nanchang was higher than that in GB/T18883-2002(0.10 mg/m^3).Conclusion This is an epidemic caused by excessive indoor formaldehyde concentration with nosebleeds as the main symptoms.It is necessary to strengthen the school's knowledge of indoor air pollution.