Papers by Author: Wei Wang

Abstract: Atmospheric ions are produced by many natural and anthropogenic sources and their concentrations vary widely between different environments. In this study, we conducted in a southern coastal province of China, where we chose some typical sites to observe. The observations included negative air ion concentration, positive air icon concentration, wind speed, temperature and relative humidity, and negative air icon concentration in materials and plants. The results showed that negative air icon concentration changed more obviously in different water statuses, and showed a certain degree of mutual relations. In order to improve the urban ecological environment, the authors proposed the use of water and wind actively to increase the distribution of negative air anion concentration in urban planning and construction.

Abstract: Based on observation of characteristics of NAI concentration of part of an office-building in Shenzhen, air quality of different equipments for cooling were assessed using ion polarity ratio (q) and air ion assessment index (CI). The result show that the air cleanness degree of the natural ventilation indoor is better than mechanical ventilation, using renewable energy for cooling is better than normal air-conditioning, and placed the negative ion generator has improved indoor air quality significantly. So the authors suggest to take NAI concentration as a monitoring and assessment indicators of the indoor environment, so as to provide a scientific basis and design concept for energy planning and environmental protection in the future.