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class="lyNyProDetail_ConText" id="c_detail_wrap"> <P><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">一、</SPAN></SPAN><STRONG>深圳承包噪音治理工程</STRONG><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">種類(lèi)及特點(diǎn):</SPAN></SPAN></P><P><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">　　噪音污染按聲源的機(jī)械特點(diǎn)可分為：氣體擾動(dòng)產(chǎn)生的噪音、固體振動(dòng)產(chǎn)生的噪音、液體撞擊產(chǎn)生的噪聲以及電磁作用產(chǎn)生的電磁噪聲。噪聲按聲音的頻率可分為：<400Hz的低頻噪聲、400～1000Hz的中頻噪聲及>1000Hz的高頻噪聲。噪音按時(shí)間變化的屬性可分為：穩(wěn)態(tài)噪音、非穩(wěn)態(tài)噪音、起伏噪音、間歇噪聲以及脈沖噪音等。</SPAN></SPAN></P><P><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">二、噪音</SPAN></SPAN><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">的危害：</SPAN></SPAN></P><P><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">1、損害我們的聽(tīng)力，長(zhǎng)期處于高分貝聲音之下。</SPAN></SPAN></P><P><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">2、損害視力，因?yàn)槎渑c眼睛之間有著微妙的內(nèi)在“"，當(dāng)噪音作用于聽(tīng)覺(jué)器官時(shí)，也會(huì)通過(guò)神經(jīng)系統(tǒng)的作用而“波及"視覺(jué)器官，使人的視力下降，重者會(huì)使色覺(jué)、色視野發(fā)生異常。</SPAN></SPAN></P><P><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">3、損害心血管系統(tǒng)，高血壓的人長(zhǎng)期處于噪音下，會(huì)提高發(fā)病率。</SPAN></SPAN></P><P><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">4、損害神經(jīng)系統(tǒng),影響睡眠，長(zhǎng)期在噪音的環(huán)境下，我們?nèi)菀装l(fā)火，心煩意燥，影響睡眠，容易出現(xiàn)精神欠佳。</SPAN></SPAN></P><P><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">隨著近代工業(yè)的發(fā)展，環(huán)境污染也隨著產(chǎn)生，噪音污染就是環(huán)境污染的一種，已經(jīng)成為對(duì)人類(lèi)的一大危害。噪音污染與水污染、大氣污染被看成是世界范圍內(nèi)三個(gè)主要環(huán)境問(wèn)題。噪音控制在技術(shù)上雖然現(xiàn)在已經(jīng)成熟，但由于現(xiàn)代工業(yè)、交通運(yùn)輸業(yè)規(guī)模很大，要采取噪音控制的企業(yè)和場(chǎng)所為數(shù)甚多，因此在防止噪音問(wèn)題上，必須從技術(shù)、經(jīng)濟(jì)和效果等方面進(jìn)行綜合權(quán)衡。</SPAN></SPAN></P><P><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">三、</SPAN></SPAN><STRONG>深圳承包噪音治理工程</STRONG><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">治理常用方法：</SPAN></SPAN></P><P><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">1、在傳音途徑上降低噪音</SPAN></SPAN></P><P><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">在傳音途徑上降低噪音，控制噪音的傳播，改變聲源已經(jīng)發(fā)出的噪音傳播途徑，如采用吸音、隔音、音屏障、隔振等措施，以及合理規(guī)劃城市和建筑布局等。</SPAN></SPAN></P><P><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">2、降低噪音源　　</SPAN></SPAN></P><P><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">降低聲源噪音，工業(yè)、交通運(yùn)輸業(yè)可以選用低噪音的生產(chǎn)設(shè)備和改進(jìn)生產(chǎn)工藝，或者改變?cè)胍粼吹倪\(yùn)動(dòng)方式（如用阻尼、隔振等措施降低固體發(fā)聲體的振動(dòng)）。</SPAN></SPAN></P><P><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: rgb(0,0,0)">3、受音者或受音器官的噪音防護(hù) 　　</SPAN></SPAN></P><P><SPAN style="FONT-SIZE: 12px"><SPAN style="COLOR: 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