由於低頻噪音的特性有別於中高頻噪音，在一般的量測方式與判定方法上也與傳統的噪音處理的方式不同，在過去常被忽視。低頻噪音的產生常導致一些對此聲音敏感的人在生活上的困擾。由本研究得知的結果，在我們實際的生活環境中，確實存在著低頻噪音的問題，我國環保署也重視到低頻噪音的污染問題，並已開始著手立法並進行管制。

　　本研究以產生低頻噪音的來源種類為對象，實地的進行量測記錄與解析，以獲得相關的低頻噪音源特性的基礎資料；另外也針對現有的居住環境做全日的監測，以了解目前住家內的低頻噪音環境的分佈狀況。

　　本研究有以下結論：
一、根據所量測數種噪音源，在我們現有的生活環境中，確實存在著低頻噪音的問題，且發現所有量測對象的量測值，幾乎都超出我國的低頻噪音管制值與各國的容許值。這其中，在大型排風機、發電機、廚房排風扇、爆破作業等附近的室內空間，音量皆高於50dBA，較我國所訂定的最低標準的低頻管制值40dBA還要高出甚多。
二、由低頻噪音量測對象經資料整理後得知，各個的主要頻率範圍在3.15Hz(高架道路旁的住宅內)~120Hz(配電變電站)之間；而各個低頻噪音的主要頻率範圍音壓級大小在65dB(配電變電站)~115dB(火藥爆破作業)之間。
三、由低頻噪音量測對象經資料整理後得知，低頻噪音量測對象發生的主要頻率之特性約略可分為三種：
1.單一頻率的低頻主要頻率。如廚房排風扇、室內天車運轉。
2.主頻率與複頻率同時存在的低頻主要頻率。如配電變電站、軍用直昇機。
3.含蓋多個頻率的頻帶型的低頻主要頻率。如火藥爆破作業、舞廳營業中的上方樓層。
四、在現有的居住環境中，交通流量較大的交通幹道會對周圍的住宅產生低頻噪音的問題。所產生低頻噪音超過我國的低頻噪音管制值。

　Due to the difference of low frequency noise from middle and high frequency noise, the way of measurement and judgment of low frequency noise is different from the one of traditional noise treatment. It has been often neglected. Low frequency noise has caused a hazard to those people who are sensitive to it. From the result of this study, the problem of low frequency noise in our daily life living environment does exist, and the Environmental Protection Administration has also placed importance on the problem of the pollution of low frequency noise, and legislation on the restraining of this problem has also been on its way.

　This study is based on the cause of producing low frequency noise and assisted with the measurement and record on the spot and analysis to obtain the relative basic data of the characteristics of low frequency noise. Moreover, the current living environment is also monitored on a daily base to understand the scatter of low frequency noise in current domestic living environment.

　The following are the results of this study:
1. Based on the causes of different noises, in our living environment the problem of low frequency noise does exist and the values measured of most clients almost exceed the limitation of our country and other countries as well. Among them, the values of near the room of the large exhaust blower, large generators, extractor fans in the kitchens ,explosive powder work are over 50dBA, which is much more than 40dBA, the standard set by our government.
2. After the arrangement of the data taken from the measurement of low frequency noise, we come to understand that the range of individual main frequency falls between 3.15Hz, those residences near elevated roads, and 120Hz, transformer stations and that the range of individual sound power level falls between 65dB, transformer stations, and 115dB, explosive powder work.
3. After the arrangement of the data taken from the measurement of low frequency noise, we come to understand that the causes of the characteristics of tested clients can roughly be divided into three kinds:
a. The low frequency of mono frequency comes from extractor fans in the kitchen and the running of indoor overhead traveling crane .
b. The main low frequency co-exists with main frequency and compound frequency, such as transformer stations and military helicopters.
c. The low frequency involves multi-frequency, such as explosive powder work, and upstairs of dance hall.
4. In current living environment, those main roads with busy traffic will cause problems of low frequency noise to the nearby neighborhood. The low frequency noise caused exceeds the value of our country’s standard.

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