ABSTRACT

Schools are considered sensitive areas to noise pollution. The objective of this study is to ascertain the sound level in schools with respect to different sampling time sessions and sampling points. Five sampling points, consisting of two classrooms (Classroom A and Classroom B), a canteen, a staffroom and a field, were chosen to obtain an overview of the noise level within the whole school in three different time sessions (morning, afternoon and evening), as well as 8-h continuous sampling in both classrooms and the staffroom. The average noise level (L_Aeq,10min) obtained in this school was found to be in the range of 48.8 dBA to 83.7 dBA, where most of the values exceeded the permissible maximum sound pressure level set by the Malaysian Department of Environment (DOE). Classroom B recorded the highest average noise level (L_Aeq,8h) of 77.9 dBA, which exceeded the maximum value set by the Department of Environment.

摘要

学校被认为是噪声污染的敏感区域。本研究的目的是确定学校在不同采样时间段和采样点的声级。选择了五个采样点，包括两个教室（A 教室和 B 教室）、一个食堂、一个教职工室和一个场地，以获取整个学校在三个不同时间段（早上、下午和晚上）内的噪音水平概况)，以及在教室和教职员工室进行 8 小时连续采样。平均噪声级（L _Aeq,10min) 在这所学校获得的声压级在 48.8 dBA 至 83.7 dBA 之间，其中大部分值超过了马来西亚环境部 (DOE) 设定的允许最大声压级。B教室的最高平均噪音水平（L _Aeq,8h）为77.9 dBA，超过了环境部规定的最大值。