王非　李冰　周蕴薇

(东北林业大学，哈尔滨，150040)



城市森林公园空气负离子浓度与气象因子的相关性1)

王非李冰周蕴薇

(东北林业大学，哈尔滨，150040)

在位于哈尔滨市市区的黑龙江省森林植物园内，于2014年7、10月份选择晴朗的天气定位、同步测定距地面0.8 m处的空气负离子浓度、风速、温度、相对湿度、气压、风寒、露点温度、湿球温度、PM2.5、光照强度，分析不同月份负离子浓度和各气象因素的相关性、负离子浓度和相关性显著的各因素之间的关系，并对和负离子有显著相关性的因子与负离子进行多元回归分析。结果表明：研究区内，空气负离子浓度和各气象因子的相关关系会随着时间发生变化。7月份，负离子浓度和露点温度呈极显著正相关、和PM2.5呈极显著负相关、和湿球温度呈显著正相关，负离子浓度和风速、温度、风寒、相对湿度、压强、光照强度无明显相关关系。10月份，负离子浓度和相对湿度、露点温度、湿球温度呈极显著负相关关系，负离子浓度和压强呈极显著正相关关系，负离子浓度和温度、风寒呈显著负相关关系，负离子浓度和风速、PM2.5、光照强度无明显相关关系。7月份负离子浓度和PM2.5相关性最强，10月份负离子浓度和压强的相关性最强。

黑龙江省森林植物园；空气负离子；气象因子；城市环境

In the Heilongjiang Forest Botanical Garden of urban area of Harbin, in July and October 2014, we chose the sunny weather and the range of ground 0.8 m place to measure the negative air ion concentration, wind speed, temperature, relative humidity, air pressure, wind and cold, dew point temperature, wet ball temperature, PM2.5, and light intensity. We analyzed the relationship between different season anion concentrations and meteorological factors of relevance, and the relationship between anion concentrations and the factor with significant correlation. We used multiple regression analysis with negative ions and the anion with significant correlation factor. The concentration in the study area and the correlation various meteorol-ogical factors changed with seasons. In July, the negative air ion concentration was correlated significantly and positively with dew point temperature and wet bulb temperature, while negatively with dust PM2.5, but was not correlated with wind speed, temperature, wind chill, relative humidity, pressure and light intensity. In October, the negative ion concentration had extremely significant negative correlation with relative humidity, dew point temperature and wet bulb temperature, and it had extremely significant positive correlation with pressure. It was significantly correlated with temperature and wind chill, and it had no obvious correlation with wind speed, dust PM2.5and light intensity. The concentration of negative ions and PM2.5were most relevant in July, and the concentration of negative ions and the pressure were the most relevant in October.

当今社会环境问题日益引起人们关注，作为评价空气清洁度的重要指标，被誉为“环境警察”的空气负离子浓度(Negative Air Ion Concentration，NAIC以下简称为负离子)更是备受重视。许多研究者在探索负离子和各因素的关系，如：风速、温度、相对湿度、光照、粉尘等对负离子浓度的影响和相关关系，但各自的观点却有所不同[1-14]。……