Supervise and urge enterprises to adopt noise control measures, and manage a number of enterprises with serious noise pollution. Various measures of noise pollution prevention The acoustic environment of urban functional zones of 311 APL cities has been monitored, the daytime attainment rate of which was 92.4 percent, and the nighttime attainment rate was 74.4 percent.Ĭompared with 2018, in 2019, the proportion of cities met Grade I daytime environmental noise standard across the country decreased by 1.5 percentage points, the proportion of cities met Grade II standard increased by 3.5 percentage points, the proportion of cities met Grade III standard fell by 2.0 percentage points, and the proportion of cities met Grade IV standard rose by 0.7 percentage points, and the proportion of cities met Grade V standard fell by 0.6 percentage points. The acoustic environment of traffic noise of 322 APL cities had been monitored in the daytime, and the average equivalent sound level was 66.8 dB(A). In 2019, regional daytime acoustic environment of 321 APL cities has been monitored, and the average equivalent sound level was 54.3 dB(A). According to The 2020 Report on Environmental Noise Pollution Prevention and Control in China issued by the Ministry of Ecology and Environment, the state of China's acoustic environment is roughly as follows:
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