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目的:为了解驻广州部队企事业单位噪声污染情况,为制定防制措施提供依据。方法:1995 ~1997 年连续三年对噪声源及其边界噪声进行定期监测。结果:1995 、1996 及1997 年治理前各年的边界噪声达标率分别为60 .0 % 、62 .7 % 及63 .6 % ;各年度治理后的达标率依次为67 .5 % 、69 .1 % 及71 .9 % ;并且对超标边界噪声超标程度及治理效果进行了分析,达标率虽逐年有所上升,但尚需治理的单位所占比例仍高达28 % 以上。结论:根据噪声污染现状,提出了要根治严重超标( 超标20 dB(A) 以上) 的边界噪声;重点治理中度超标(11 ~20 dB(A)) 的边界噪声;加强对轻度超标( 超标1 ~10 dB(A)) 的边界噪声治理的环保对策
Purpose: To understand the noise pollution in the units and public institutions in Guangzhou and provide evidence for the development of control measures. Methods: The noise source and its boundary noise were monitored regularly for three consecutive years from 1995 to 1997. Results: The compliance rates of boundary noise in each of the years before 1995, 1996 and 1997 were 60 and 60 respectively. 0%, 62. 7% and 63. 6%; the annual compliance rate of 67 after treatment. 5%, 69. 1% and 71. 9%; and analyzed the extent of over-standard boundary noise and the treatment effect, although the compliance rate has risen year by year, the proportion of units still in need of treatment is still as high as 28%. CONCLUSION: According to the current situation of noise pollution, the boundary noise which should be radically eradicated (over 20 dB (A) excess) is put forward. The border noise with medium excess (11 ~ 20 dB (A) Environmental countermeasures for the border noise control of exceeding 1 ~ 10 dB (A) exceeded