摘要
负氧离子有利于人们身体健康，并反映空气质量清新度；国家和上海市将崇明岛定位为生态岛，为明确其风景旅游区空气清新程度，体现生态岛环境效益，文章主要研究该区域空气中对人体健康有益小粒径负氧离子的分布特征。通过相关资料调研分析，确定监测研究对人体有益、离子迁移率／〉0．15cm2／（V·s）的中小空气负离子。通过对崇明岛东滩、明珠湖、森林公园3个风景旅游区12个测点进行负离子监测，研究负离子分布特征和影响因素。研究表明：2011年负离子浓度平均值在318～1763个／cm3之间；区域总体分布规律为：明珠湖草地〉东滩栈桥〉明珠湖森林〉森林公园花卉基地〉东滩大堤〉森林公园观光果园〉森林公园人口〉森林公园度假村；正离子普遍大于负离子，且临近水域、周边植被茂盛、人为活动少的区域负离子浓度相对较高。基于研究结论，针对区域特点，提出平原区域后续开展负离子监测研究的建议，为政府部门提供参考与借鉴。
Air negative oxygen ions which are beneficial to health may represent the refreshing degree of air. In order to embody good ecological benefits of Chongming tourist area, the distribution of air negative ions whose mobility more than 0.15 cm2/V.s were investigated. 12 monitoring spots in three tourist areas of Chongming Island including Dongtan Wetland, Mingzhu Lake and Dongping Forest Park were chosen according to different regional characteristics to study the distribution of negative oxygen ions and affecting factors. Results indicated that average concentrations of negative oxygen ions varied from 318 to 1,763 per cm3, with high vegetation and near water more than others. Overall spatial variation is Mingzhu Lake （Grassland） 〉Dongtan Wetland （Trestle Bridge） 〉Mingzhu Lake （Forest） 〉Dongping Forest Park （Flower Garden） 〉Dongtan Wetland （Dam）〉Dongping Forest Park （Orchard）〉 Dongping Forest park （Entrance）〉Dongping Forest Park （Holiday Village）. Generally the number of positive ions in air in these areas is more than the negati,,e ones, and some advices on monitoring of negative oxygen irons are also suggested for further study.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2013年第8期71-76,共6页
Environmental Science & Technology
基金
上海市科委科技攻关项目:崇明岛环境空气负氧离子监测
评价及跟踪评估研究与示范(12231204600)
关键词
崇明岛
负离子
离子迁移率
监测
分布特征
Chongming Island
negative oxygen ions
ion mobility
monitoring
distribution
