宝鸡市休闲保健游园环境NAI的定量评价和比较

The quantitative evaluation and comparison of NAI concentration in urban park environment for leisure health activities with Baoji City as an example

目的 以宝鸡市为例,将城市休闲保健游园环境中空气负离子（NAI）作为研究对象,对其浓度进行定量评价和分析比较,遴选最佳城市休闲保健游园环境,为当地居民提供近距离的休闲保健游园场所.方法 用KEC-900正负离子测试仪测定中华石鼓园（Shigu Park）、宝鸡市植物园（BotanicGarden）、周礼文化主题公园（Chou Li Cultural Theme Park）、渭河生态公园（Weihe Ecol.Park）、杨家山农业观光园（Agricultural Sightseeing Garden）、渭河公园（Weihe Park）的NAI浓度,与室内（Rooms） NAI浓度进行比较,遴选出宝鸡市区有益于人体保健的休闲游园最佳环境.结果 观测结果显示,中华石鼓园NAI浓度最高,平均为1 515个/cm3（n=385）;其次是宝鸡植物园,平均浓度为1 071个/cm3（n=136）;周礼文化主题公园和渭河生态公园NAI平均浓度分别为884个/cm3（n=149）和825个/cm3（n=156）;杨家山农业观光园NAI平均浓度为544个/cm3（n=157）,渭河公园的NAI浓度平均为495个/cm3（n=168）,分别是室内NAI浓度（366个/cm3,n=130）的1.35～4.14倍,而且上述6处游园环境和室内环境NAI浓度,在P=0.005水平存在显著性差异.结论 城市公园环境是市民最好的休闲保健活动场所,中华石鼓园和宝鸡植物园,相对其他游园环境NAI浓度更高（＞1 010个/cm3）,相当有利于健康,不失为宝鸡市区休闲保健的最佳游园环境.

Objective-To quantitatively evaluate and comparatively analyze the concentration of negative air ions （NAI） in the environment of urban gardens or parks for leisure health activities with Baoji City, Shaanxi, China as an example so that the best urban leisure health environment can be se- lected to provide close leisure health touring places for the local residents. Methods--The concentration of air anions was detected with the KEC-900 positive and negative air ions detector at Chinese Shigu （Stone Drums） Park （Shigu Park）, Baoji Botanic Garden, Chou Li Cultural Theme Park, Weihe Eco- logical Park （Weihe Ecol. Park）, the Agriculture Sightseeing Garden at Yangjia Mountain （Agric.Sightseeing Garden） and Weihe Park. Then the determined concentration results were compared with that of indoor NAI concentration to select best environment in Baoji City which is beneficial to health care and leisure touring. Results--The determining results show that, followed by the Baoji Botanical Garden, whose average concentration is 1 071 anions/cm3 （n= 136）, the highest NAI concentrations is at Shigu Park, whose average value is up 1 515 anions/cma （n：385） the NAI average concentrations at Chou Li Cultural Theme Park and Weihe Ecological Park are 884 anions/cm3 （n = 149） and 825 anions/cma （n= 156） respectively~ the NAI concentration average value at the Agriculture Sightseeing Garden in Yangiia Mountain is 544 anions/cm3 （n= 157）, and the average NAI concentration value of Weihei Park is only 495 anions/cm3（n= 168）. All the aforesaid NAI concentrations are 1.35～4.14 times as high as the indoor NAI concentrations （366 anions/cm3, n=130）, and the NAI average con- centrations of the six gardens or parks in Baoji City are significantly different from the indoor environ- ment at P= 0. 005 level. Conclusion--The environment of urban gardens or parks are the best places for citizens to do leisure health activities, the average NAI concentration in the Chinese Shigu Park and Baoji Botanical Garden are higher （〉1 010 anions/cm3） than that in other environments, so the environment of Chinese Shigu Park and Baoji Botanical Garden are quite good for health, the Chinese Shigu Park and Baoji Botanical Garden can yet be regarded as the best environment of leisure health care activities in Baoji City.