the paper summarizes research history and forming process of air negative ion, and how to increase air negative ion to improve city environment.
综述了空气负离子的研究历史、产生过程以及增加空气负离子改善城市环境的措施。
based on correlative literature, this paper, in the room, outdoors, further discusses its connection between air negative ion and city environment.
在相关文献的基础上,由室内、室外二方面进一步探讨了空气负离子与城市环境的关系。
the air negative ion concentration was significantly negatively correlated with air temperature, and positively correlated with air pressure and relative humidity.
空气负离子浓度与温度呈极显着负相关,与相对湿度、气压呈极显着正相关。