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近年,我们结合学校卫生基木情况调查,对我县金川、七琴、坛垃、力江、三湖、塘头六个乡(镇)的89名在家自习学生(中学生12人,小学生77人)的家庭人工照明进行了调查,采用上海险峰电影机械广生产之ZF—2型照度计测定。学生在家晚自习的时间,多数(75人)在一小时以内(占84.4％),只有5人(占5.6％)在2小时以上。89名学生家长共62户,用于学习时照明用的灯具62盏,全部为白炽灯。其中15W自炽灯30只,25W22只,两者合计52只,占83.9％,另
In recent years, we combined with the survey of school health wood, 89 home study students (12 middle school students, 77 primary school students) in Jinchuan, Qiqin, altar rubbings, Lijiang, Sanhu and Tongtou counties ) Of the family of artificial lighting were investigated using the Shanghai Xianfeng film machinery production ZF-2-type light meter measured. Students at home night time, the majority (75) within an hour (84.4%), only 5 (5.6%) in more than 2 hours. A total of 89 parents of 62 students, used to study lighting lamps 62, all incandescent. Including 15W incandescent 30, 25W22 only, both a total of 52, accounting for 83.9%, the other