摘要
目的分析连续开展实验室间比对对职业卫生技术服务机构噪声现场测量水平的影响。方法收集2014、2017和2018年参加工作场所噪声测量实验室间比对的68、55和50家职业卫生技术服务机构实验室(参比机构)的结果,依据GBZ/T 189.8—2007《工作场所物理因素测量第8部分:噪声》评定现场测量操作和等效声级计算结果,采用z比分数对测量结果进行评估。结果噪声测量现场操作中,参比机构2014、2017和2018年3年仪器设置正确率分别为89.7%、98.2%和100.0%,测量位置正确率分别为52.9%、81.8%和94.0%,声级计握持正确率分别为54.4%、80.0%和92.0%,传声器指向正确率分别为98.5%、98.2%和94.0%,噪声类型识别正确率分别为83.8%、92.7%和84.0%。其中,仪器设置、测量位置、声级计握持的正确率均呈逐年上升趋势(P<0.01)。参比机构3年噪声测量结果合格率为91.2%、94.5%和88.0%,等效声级计算合格率分别为73.5%、92.7%和88.0%,综合评定合格率分别为70.6%、89.1%和80.0%;其中,2017年等效声级计算和综合评定合格率均高于2014年(P<0.017)。民营机构与非民营机构3年综合评定总合格率比较,差异无统计学意义(84.0%vs 75.5%,P>0.05);非珠江三角洲机构和珠江三角洲机构3年综合评定总合格率比较,差异无统计学意义(70.3%vs 81.6%,P>0.05)。结论连续开展实验室间比对有利于提升职业卫生技术服务机构噪声现场测量能力。
Objective To analyze the influence of noise measuring skills by continuous inter-laboratory comparison among occupational hygiene technical service organizations. Methods The results of 68, 55 and 50 occupational hygiene technical service organizations(reference organizations) participating in the inter-laboratory comparison of workplace noise measurement in 2014, 2017 and 2018 respectively were collected. The measurement operation and the calculation of equivalent sound level were evaluated according to the GBZ/T 189.8-2007 Measurement of Physical Agents in Workplace--Part 8: Noise.The measured results were analyzed by z score evaluation method. Results The results of noise measurement field operation of the reference organizations in the year 2014, 2017 and 2018 show that the accuracy rates of instrument setting was 89.7%, 98.2% and 100.0%, the accuracy rates of measuring position were 52.9%, 81.8% and 94.0%, the accuracy rates of sound level meter holding were 54.4%, 80.0% and 92.0%, the accuracy rates of microphone pointing were 98.5%, 98.2% and 94.0%, and the accuracy rates of noise type recognition were 83.8%, 92.7% and 84.0%, respectively. Among them, the accuracy of instrument setting, measurement position and sound level meter holding showed an increasing trend year by year(P<0.01). The pass rates of measurement results were 91.2%, 94.5% and 88.0% in 2014, 2017 and 2018 respectively. The pass rates of equivalent sound level calculation were 73.5%, 92.7% and 88.0%. The pass rates of comprehensive evaluation were 70.6%, 89.1% and 80.0% respectively. Among them, the pass rates of equivalent sound level calculation and comprehensive evaluation in 2017 were higher than that in 2014(P<0.017). There was no significant difference in the three-year comprehensive assessment total pass rate between private organizations and non-private organizations(84.0 % vs 75.5%, P>0.05). There was no significant difference in the total pass rate of three-year comprehensive evaluation between non-Pearl-River-Delta organizations and Pearl-River-Delta organizations(70.3% vs 81.6%, P>0.05). Conclusion Continuous inter-laboratory comparison in occupational hygiene technical service organizations is beneficial to improve on-site noise measure capability.
作者
徐国勇
陈青松
赖明珍
张丹英
晏华
肖斌
林瀚生
XU Guoyong;CHEN Qingsong;LAI Mingzhen;ZHANG Danying;YAN Hua;XIAO Bin;LIN Hansheng(Guangdong Province Hospital for Occupational Disease Prevention and Treatment,Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment,Guangzhou,Guangdong 510300,China;不详)
出处
《中国职业医学》
CAS
北大核心
2020年第3期310-314,共5页
China Occupational Medicine
基金
广东省医学科学技术研究基金(A2019133)
广东省职业病防治重点实验室(2017B030314152)
关键词
噪声
测量
实验室间比对
z比分数
等效声级
职业卫生技术服务机构
Noise
Measurement
Inter-laboratory comparison
z-score
Equivalent sound level
Occupational hygiene technical service organization
作者简介
徐国勇(1983—),男,医学硕士,副主任医师,主要从事职业卫生相关工作。;通信作者:陈青松,博士,主任医师,硕士生导师,E-mail:qingsongchen@aliyun.com
