항공 및 도로 교통 소음권내 초등학교의 소음실태분석

This study is a preliminary investigation into improving the environmental quality of schools. The purpose was to clarify the present conditions and reasons of noise in elementary schools located near airports and roads by noise level measurements and questionnaire surveys of subjective responses. Reid measurements on equivalent and instantaneous noise levels, indoor and outdoor, were carried out in 3 schools during the periods 11th~13th of February and 2nd~7th of July, 2003. The respondents were 94 teachers working in the 3 schools. The results were as follows. 1) Indoor noise levels of the 3 schools were 36.9~73 ㏈(A) in winter, and 46.9~91 ㏈(A) in summer. These values were higher than the indoor noise standard of 50 ㏈(A), except for the average of equivalent noise levels in winter. 2) Outdoor noise levels of the schools were 41.1~101 ㏈(A) in winter, and 52.4~102 ㏈(A) in summer. These values were generally inappropriate relative to the standard for environmental noise of 65 ㏈(A). 3) The respondents showed relatively nonpositive responses during school hours for interruptions by environmental noise. 4) The frequently checked types of environmental noise of the schools were `airplane noise`, `surrounding facilities`, and `traffic noise`. The frequently checked types of damage by environmental noise were `Interrupting school hours` and `Interrupting business`.