摘要
为了解校园室内环境中大气颗粒物的污染特征及其成因,选择在校园内的教室、食堂、宿舍、图书馆、实验室等不同场所进行室内颗粒物的采样,通过激光尘埃粒子计数器(CLJ-S3016)测量了颗粒物数浓度变化。结果表明:室内环境中颗粒物的数浓度变化与人们日常生活中的作息活动紧密相关。在一般情况下自然通风能够改善室内空气质量,但在雾霾天气时通风反而会使室内颗粒物污染情况加重。在不同的室内环境中,颗粒物的污染特征及其来源不尽相同,室内颗粒物是由各种排放源的共同作用下形成的。实验结果表明:吸烟、熏香、室内清扫等人为活动都会引起颗粒物数浓度的明显升高,而通风可以有效改善这些人为活动引起的室内空气污染。
In order to understand the characteristics and causes of particulate matter pollution in the campus indoor environment,atmospheric particles were collected from classrooms,canteens,dormitories,libraries,laboratories and other places in the campus.The number concentrations of particles were measured by a Laser Particle Counter(CLJ-S3016).The result showed that the number concentration of atmospheric particles in indoor environment were closely related to people's daily life.In general,natural ventilation can improve indoor air quality,but in haze weather,ventilation will aggravate indoor particulate matter pollution.In different indoor environment,the pollution characteristics and sources of particulate matters are different.Indoor particulate matters is formed by the joint action of various emission sources.The experimental result showed that smoking,incense,indoor cleaning and other human activities can significantly increase the concentration of atmospheric particles,and ventilation can effectively improve the indoor air pollution caused by these human activities.
出处
《绿色科技》
2020年第24期135-138,共4页
Journal of Green Science and Technology
基金
2019年浙江省大学生科技创新活动计划暨新苗人才计划(编号:2019R432009)。
关键词
室内空气污染
大气颗粒物
数浓度
污染特征
indoor air pollution
atmospheric particles
number concentration
pollution characteristics
