化工园区有毒有害气体预警体系扩散途径识别与监控  

Identification and monitoring of dispersion pathways in the early warning system for toxic and hazardous gases in chemical parks

作　　者：江华亮 尹勤 任翔宇 闫晶晶 陈丹鈜 丹明玉 朱剑秋 JIANG Hualiang;YIN Qin;REN Xiangyu;YAN Jingjing;CHEN Danhong;DAN Mingyu;ZHU Jianqiu(Zhejiang Environmental Science and Technology Co.,Ltd.,Hangzhou Zhejiang 311121)

机构地区：[1]浙江省环境科技有限公司,浙江杭州311121

出　　处：《环境污染与防治》2024年第6期784-788,共5页Environmental Pollution & Control

基　　金：浙江省生态环境科研和成果推广项目(No.2021HT0044)。

摘　　要：扩散途径的精准识别与监控是化工园区有毒有害气体预警体系发挥功能的重要先决条件,对于推动化工园区预警能力升级、减少突发环境风险事故的发生具有重要意义。研究建立了基于CALPUFF模型的化工园区有毒有害气体预警体系扩散途径识别与监控方法——“三定法”(气象定向—轨迹定区—模拟定点),并用于科学、准确识别气体扩散途径的监控站布设。以嘉兴港区有毒有害气体预警体系试点建设项目为例进行了案例研究,识别出园区有毒有害气体的5条主要扩散途径;进一步综合气象分析、周边敏感区的分布以及CALPUFF模型扩散模拟结果,最终将园区有毒有害气体预警体系扩散途径监控站布设在扩散占比最高的途径Ⅰ区内落地浓度最大的位置。Accurate identification and monitoring of dispersion pathways is an important prerequisite for the function of the early warning system for toxic and hazardous gases in chemical parks,which is of great significance in promoting the upgrading of the warning capability of chemical parks and reducing the occurrence of sudden environmental risk accidents.The “three fixed methods”(meteorological orientation-trajectory determination-simulation location) were constructed to scientifically and accurately identify the location of toxic and hazardous gas dispersion pathway monitoring stations in the chemical park based on CALPUFF model.Taking the pilot project of the early warning system for toxic and hazardous gases in Jiaxing Port area as an example,there were five main dispersion pathways of toxic and hazardous gases in the park.By further integrating meteorological analysis,distribution of surrounding sensitive areas and CALPUFF model dispersion simulation results,it was finally determined that the dispersion pathway monitoring station of the park's toxic and hazardous gas warning system was deployed at the point with the largest landing concentrations within the pathway Ⅰ area with the highest dispersion ratio.

关 键 词：有毒有害气体 环境风险 CALPUFF模型 扩散途径监控站 嘉兴港区 

分 类 号：X831[环境科学与工程—环境工程]