基于信息熵的信息环境污染指数及其应用  

Information environment pollution index and its applications based on information entropy

作　　者：曾维华[1] 王慧慧[1] ZENG Wei-hua;WANG Hui-hui(School of Environment, Beijing Normal University, Beijing 100875, China)

机构地区：[1]北京师范大学环境学院,北京100875

出　　处：《中国环境科学》2017年第2期768-776,共9页China Environmental Science

基　　金：中国清洁发展机制基金赠款项目(2013049);国家水体污染控制与治理科技重大专项(2012ZX07102-002-05)

摘　　要：从信息环境污染理论入手,系统阐述了信息环境污染概念内涵、成因及其危害.利用信息熵理论构建信息环境污染指数(IEPI)模型来反映事件本身信息污染程度大小,并以某市污水处理厂主要污染物日监测数据为例对信息环境污染指数进行分析.研究结果表明,该厂主要污染物BOD_5、COD_(Cr),SS、TN、TP和NH_3-N的日处理量监测数据可靠个数分别占15.8%、16.0%、15.8%、15.1%、15.0%和13.4%,则该厂主要污染物监测数据存在8.9%的干扰;在受到干扰因素影响下,该厂污染物监测数据的信息熵为0.9O_3(bit),其IEPI值为0.158,满足信息质量Ⅰ级标准,说明该厂的主要污染物监测数据受污染程度较低,但仍存在一定的不确定性.最后,针对当前日趋严重的信息环境污染现象,从加强各部门间协同合作、加强公众参与监督、完善污染源信息上报、提高监测设备的性能等方面,提出控制信息环境污染对策.The connotation,causes and harm of information environment pollution were elaborated based on its theory.Information entropy theory was employed to build information environment pollution index(IEPI)model so as to reflectthe size of information pollution of event.Moreover,the monitoring data of main pollutants in municipal sewagetreatment plant were taken as examples to analyze the information environment pollution index.The reliable numbers ofday processing monitoring data of the plant main pollutants of BOD5,CODCr,SS,TN,TP and NH3-N were15.8%,16.0%,15.8%,15.1%,15.0%and13.4%,respectively.Therefore,the rate of interference of the plant main pollutant monitoringdata is8.9%.Under the influence of interference factors,the information entropy of monitoring data of main pollutants inthe plant was0.903(bit)and its IEPI is0.158,which lies in theⅠlevel of the information quality standard.It suggestedthat the contamination degree of monitoring data of the plant's main pollutant was low,but there were still someuncertainties.Considering the increasingly serious information environmental pollution,some measures were put forwardto control information environment pollution,such as strengthening the coordination between departments,advocating thepublic participation and supervision,improving the submission of pollution source information and promoting theperformance of monitoring equipment,etc.

关 键 词：信息环境污染指数 信息熵 信息环境污染控制 

分 类 号：X83[环境科学与工程—环境工程]