校园噪声测定报告.docx

校园噪声测定报告.docx

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校园噪声测定报告校园噪声测定报告金华职业技术学院JINHUACOLLEGEOFPROFESSIONANDTECHNOLOGY噪声控制技术实训成果专业环境监测与治理技术班级环保102组号第六组组长成员成绩2012年6月2日校园噪声监测一、实训目的1、训练学生独立完成环境噪声监测任务的能力；2、使学生学会熟练声级计的使用方法；3、训练对非稳态的无规则噪声监测数据的处理方法，对监测结果的分析和评价能力。

二、实训任务：

1、确定环境噪声监测方案；2、对环境噪声进行监测；3、数据处理，以合理的方式表示监测结果；4、写出环境监测实训报告，并对环境质量进行简单评价。

三、实训步骤制订噪声监测方案

（1）将学校（或某一地区）划分2525m的网格，测量点选在每个网格的中心，若中心点的位置不宜测量，可移到旁边能够测量的位置。

（2）每组3人配置一台声级计，顺序到各网点测量，每一网格至少测量1次，共10个点，时间间隔尽可能相同。

（3）读数方式用慢档，每隔5秒读一个瞬时A声级，连续读取200个数据。

读数同时要判断和记录附近主要噪声来源（如交通噪声、施工噪声、工厂或车间噪声、锅炉噪声）和天气条件。

四、数据处理环境噪声是随时间而起伏的无规律噪声，因此测量结果一般用统计值或等效声级来表示，本实验用等效声级表示。

（1）将各网点每一次的测量数据（200个）顺序排列找出L10、L50、L90，求出等效声级Leq，再将该网点一整天的各次Leq值求出算术平均值，作为该网点的环境噪声评价量。

（2）以5dB为一等级，用不同颜色或阴影线绘制学校（或某一地区）噪声污染图。

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