Analysis of external quality assessment in laboratory of workplace on-site sampling and testing skills in occupational health technical service institutions in China in 2023
Objective To analyze the problems and differences in workplace on-site sampling and testing skills in external quality assessment in laboratory among occupational health technical service institutions.Methods A total of 108 occupational health technical service institutions nationwide,participated in the external quality assessment in laboratory of the on-site individual sampling operation skills for silica dust(hereinafter refer to as"silica dust sampling assessment")and on-site detection operation skills for carbon monoxide(hereinafter refer to as"carbon monoxide sampling assessment")in 2023,were selected as the research subjects.The result of the assessment was analyzed.Results The qualification rate of the institutions for the silica dust sampling assessment was 98.1％.The unqualified rate of institutions in the Pearl River Delta region was lower than that in non-Pearl River Delta regions(0.0％vs 11.1％,P＜0.017).The excellence rate was higher in public institutions than that in private enterprises(73.5％vs 40.0％,P＜0.017).The unqualified rate of institutions with permit was lower than that of institutions without permit(0.0％vs 13.3％,P＜0.05).The qualification rate of the institutions for the carbon monoxide sampling assessment was 79.4％.The proportion of the institutes,whose results of carbon monoxide standard gas(gas bag)deviation was＞±20.0％was higher in private enterprises than that in public institutions(32.8％vs 7.1％,P＜0.017).In terms of the normativity of on-site individual sampling for silica dust,the rates of conducting air tightness checks before sampling,correct disassembly and installation and correct placement direction of dust sampling heads,and correct flow for calibration based on the provided dust sampling heads were low,at 53.7％,33.3％,and 14.8％,respectively.In terms of the normativity of on-site detection of carbon monoxide,the accuracy rate of converting results by on-site detection individuals was low,at only 57.8％.Conclusion It is necessary to further strengthen the training of theoretical knowledge and practical skills of individuals in occupational health technical service institutions in Guangdong Province,especially to enhance the capacity of occupational health technical services in non-Pearl River Delta regions of the province.
On-site samplingTesting skillExternal quality assessment in laboratoryQuality controlOccupational Health Technical Service Institutions
万方数据
维普
