空气负氧离子浓度是反映空气质量好坏的重要标志之一。在全国7个城市试点监测的基础上,探索我国空气负氧离子监测技术体系的构建,主要包括:1)监测站点的布局、建设和编码;2)监测设备硬件要求、软件要求、设备校准;3)观测指标、数据采集传输存储及其文件命名、数据处理、均值及其有效性要求;4)空气负氧离子浓度等级划分;5)成果发布的内容、时间和平台;6)系统软件自检、数据显示检查、监测场设备维护;7)评估建议等。该监测体系建设对指导和规范化我国空气负氧离子监测、加快监测步伐具有重要意义。

Content of air negative ion is one of the important indices characterizing air quality.This study first presents a technical system for monitoring air negative oxygen ion based on the monitoring pilot of seven cities at national scale.The technical system includes:(1) designing and planning,construction and code for monitoring fields,(2) requirements of hardware,software and calibration for monitoring devices,(3) requirements of monitoring indices,data sampling,transferring,store and their file names,data processing and statistics,and requirements of data averages and its validities,(4) grade classification of content of air negative oxygen ion,(5) content,time and platform of outcome releases,(6) automatic check of software,manual check of data,devices maintenance at monitoring sites,(7) assessment and recommendations.This system will be of important significance to guide,standardize and speed up the monitoring of air negative oxygen ion in China.