空气流动监测系统改装及其在监测服务中的应用

随着城市化发展进程日益加快,各城市城区面积不断扩大,功能区也随之不断变化,环境空气自动监测以固定站点为主的监测模式不能完全满足区域环境空气评价,因此建设空气流动监测系统是全面提升整个城市空气自动监测网络体系监测能力的需要。设计满足各种监测服务需求的流动监测系统,并实时观测区域气象要素,可为区域环境和重大工程项目的环境质量评估、预报、预警、执法等工作提供决策服务。根据空气流动监测系统的改装和实际使用情况,兼顾现阶段国内外环境空气流动监测技术的发展状况,谈谈如何自主改装流动监测系统,以及其在监测服务中的应用。

南京市环境空气流动监测系统质量控制的策略研究

环境空气流动监测技术近年来迅猛发展,对于环境管理的技术支撑作用明显,为保证监测数据质量,质量控制工作尤为重要。本文根据实际使用情况和运维管理的经验,介绍了南京市环境空气流动监测系统的质量控制方面的策略。

大亚湾核电站1994～2003年环境辐射监测结果与分析

本文总结了大亚湾核电站自商业运行以来十年 ( 1 994～ 2 0 0 3 )间对其周围的环境辐射监测。介绍了监测系统、方案和方法、主要结果及其初步评价。评价表明 ,周围地区的辐射环境状况 ,除在牡蛎等少数海洋生物中测到与电站排放相关的痕量放射性核素110mAg及厂区监测井中有时测到高于本底的氚外 。

Research on Integrated Monitoring and Prevention System for Stray Current in Metro

On the basis of analyzing the influencing factors and harmfulness of stray current, and discussing the existing problems of monitoring and prevention system for stray current, the integrated monitoring and prevention system for stray current in metro was developed. A net system of distributed computers for monitoring was set up. It can monitor the distribution of stray current in metro and the corrosion of the metal structure in the whole line. According to the situation of monitoring it can also control the drainage of its tank to reach the best effect and eliminate the negative effect of polarity drainage. By using the new type unilateral electric device, the problem of burning the rail by electric arc can be avoided. The unilateral electric device can be connected with the monitoring net system directly to realize the monitor in line and improve the reliability of the device.