摘要
目的研究细木工板甲醛在室内环境中的释放规律。方法采用小型气候箱模拟室内环境,研究温度、湿度、换气率对甲醛释放特性的影响。结果升高温度或增大湿度,都会促进甲醛的释放,导致室内甲醛平衡浓度的升高,温度、湿度与甲醛平衡浓度均符合指数规律。温度的促进作用存在极限值,当环境湿度较高时,甲醛浓度的提高随温度升高趋于平缓。甲醛的平衡浓度随着换气率的增加而降低。结论温度、湿度及换气率对甲醛释放具有显著影响。
Objectives To investigate the releasing characteristics of formaldehyde from block board. Methods The indoor environment was simulated by a test climate chamber and a block board was used as the test material. The influences of temperature,humidity and the exchange rate of air on the emission of formaldehyde were measured. Results Higher temperature and humidity in air could significantly promote the release of formaldehyde. The relationship of the concentration of formaldehyde with the temperature and humidity in air followed separately an exponential function. In addition,the effect of temperature in air seemed to have weakened when the humidity in air reached a high level. The concentration of formaldehyde decreased remarkably with an increase of air exchange rate. Conclusions There were great effects of temperature,humidity and exchange rate of air on the emission of formaldehyde from block board.
出处
《环境卫生学杂志》
北大核心
2013年第5期449-451,共3页
JOURNAL OF ENVIRONMENTAL HYGIENE
基金
辽宁省高等学校杰出青年学者成长计划(LJQ2012014)
关键词
气候箱
甲醛
温度
湿度
换气率
细木工板
test climate chamber,formaldehyde,temperature,humidity,air exchange rate,block board
