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      <div   id="oewmaiui0"   class="pro_detail"><p>噪聲監(jiān)測是對干擾人們學(xué)習(xí)、工作和生活的聲音及其聲源進行的監(jiān)測活動。其中包括：城市各功能區(qū)噪聲監(jiān)測、道路交通噪聲監(jiān)測、區(qū)域環(huán)境噪聲監(jiān)測和噪聲源監(jiān)測等。噪聲監(jiān)測結(jié)果一般以A計權(quán)聲級表示，所用的主要儀器是聲級計和頻譜分析器</p><p>聲環(huán)境功能區(qū)分類</p><p>0類聲環(huán)境功能區(qū)：指康復(fù)療養(yǎng)區(qū)等特別需要安靜的區(qū)域。</p><p>1類聲環(huán)境功能區(qū)：指以居民住宅、醫(yī)療衛(wèi)生、文化教育、科研設(shè)計、行政辦公為主要功能，需要保持安靜的區(qū)域。</p><p>2類聲環(huán)境功能區(qū)：指以商業(yè)金融、集市貿(mào)易為主要功能，或者居住、商業(yè)、工業(yè)混雜，需要維護住宅安靜的區(qū)域。</p><p>3類聲環(huán)境功能區(qū)：指以工業(yè)生產(chǎn)、倉儲物流為主要功能，需要防止工業(yè)噪聲對周圍環(huán)境產(chǎn)生嚴重影響的區(qū)域。</p><p>4類聲環(huán)境功能區(qū)：指交通干線兩側(cè)一定 距離之內(nèi)，需要防止交通噪聲對周圍環(huán)境產(chǎn)生嚴重影響的區(qū)域，包括4a類和4b類兩種類型。</p><p>  4a類為高速公路、一級公路、二級公路、城市快速路、城市主干路、城市次干路、城市軌道交通（地面段）、內(nèi)河航道兩側(cè)區(qū)域；</p><p>  4b類為鐵路干線兩側(cè)區(qū)域。</p><p>注：無雨雪、無雷電、風(fēng)速<5m/s時進行檢測，各類聲環(huán)境功能區(qū)夜間突發(fā)噪聲，其最大聲級超過環(huán)境噪聲限值的幅度不得高于15 dB（A）。</p><p style="text-align: center;"><img src="/zhikong/Upload/6374s/upload/image/20230322/1679468223131474.png" title="微信截圖_20211123141751" alt="微信截圖_20211123141751" style="box-sizing: border-box; vertical-align: middle; border: 0px; display: inline; max-width: 100%; color: rgb(51, 51, 51); font-family: 微軟雅黑, 宋體, Arial, "Arial Narrow", HELVETICA; font-size: 15.6px; text-align: center; white-space: normal; background-color: rgb(255, 255, 255);"/></p></div>
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