OCCUPATION AND HEALTH ›› 2026, Vol. 42 ›› Issue (10): 1323-1327.

• Treatise • Previous Articles     Next Articles

Noise hazard characteristics and spectrum analysis of 136 key industry enterprises in Huangpu District of Guangzhou City

LIU Kun, LAO Shipei, CAO Xianbang, XU Dan()   

  1. Guangzhou Huangpu District Center for Disease Control and PreventionGuangzhouGuangdong 510700, China
  • Received:2025-09-29 Revised:2025-10-13 Online:2026-05-15 Published:2026-06-02
  • Contact: XU Dan
  • About author:XU Dan,E-mail:44246767@qq.com

Abstract:

Objective To analyze the characteristics of noise hazards of key industries and the spectrum characteristics of different industries in Huangpu District of Guangzhou City,and provide scientific basis for the management of noise hazard in Huangpu District of Guangzhou City. Methods The 136 enterprises from 17 key industries in Huangpu District of Guangzhou City were selected as the research subjects using judgment sampling method,and hierarchical clustering was used for noise spectrum analysis. Results The noise intensity[MP0-P100)] of workplaces and work post of 136 enterprises was 81.5(56.7-117.8) and 83.2(61.3-109.0)dB(A),with the incidence of exceeding national standard for noise was 28.57%(442/1 547) and 34.78%(248/713),respectively. There were statistically significant differences in the incidence of exceeding national standard for noise among key industries(workplace: χ2=280.387,P<0.01;work post:χ2=135.007,P<0.01). The proportion of noise level Ⅰ,Ⅱ,Ⅲ and Ⅳ in exceeding the standard positions was 18.09%,11.78%,3.65% and 1.26%,respectively,and the difference was statistically significant in the classification of noise operations among key industries(H=134.311,P<0.01). Cluster analysis was divided into three categories. Category 1 included 11 key industries such as electrical machinery and equipment manufacturing,which was medium and high frequency noise. Category 2 included 5 key industries such as power and heat production and supply industry,which was medium and low frequency noise. Category 3 was the cultural,handicraft,sports and recreational goods manufacturing,which was high-frequency noise. Conclusion The noise hazards of key industries in Huangpu District of Guangzhou City mainly exist in 6 key industries such as electrical machinery and equipment manufacturing. There were three different types of spectrum characteristics. Scientific and effective engineering control measures and noise control strategies should be adopted according to different spectral characteristics.

Key words: Key industries, Noise, Spectral characteristics, Cluster analysis, Noise level

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