《环境影响评价》课程教学资源（英文课件）8 Noise Environmental Impact Assessment

60dB

90dB

140dBO000

Noise standard (Limits)LevelDayNightdB(A)dB(A)05040155452605036555470554a4b7060

Level Day dB(A) Night dB(A) 0 50 40 1 55 45 2 60 50 3 65 55 4 4a 70 55 4b 70 60 Noise standard (Limits )

MonitoringA sound level meterProject's locationAnalysis of noise sources already exist;Analysis of noise sensitive objects (residential buildingschool, hospital, hotel,... Day sample, night sample Draw a map for the results

 Monitoring  A sound level meter  Project’s location  Analysis of noise sources already exist;  Analysis of noise sensitive objects (residential building, school, hospital, hotel,.)  Day sample, night sample  Draw a map for the results