Monitoring and analysis of occupational disease hazards and occupational health risk assessment in the workplace of Qingdao city from 2019 to 2021
Objective To understand the monitoring and quality control of occupational disease hazards in workplaces in Qingdao city during 2019 to 2021,and to conduct occupational health risk assessment on occupational disease hazards ex-ceeding the standard.Methods In September 2022,data related to the monitoring of occupational disease hazards in the Qingdao Occupational Disease Network Direct Reporting System from 2019 to 2021 and the quality control of the Qingd-ao Occupational Health Technology and Quality Control Center were collected for occupational health risk assessment and descriptive statistical analysis.Results From 2019 to 2021,a total of 8 525 samples were monitored for dust opera-tions,of which 141 samples exceeded the standard(1.65%),12 952 samples were monitored for noise operations,of which 612 samples exceeded the standard(4.72%),and 11 190 samples were monitored for external chemical toxicity opera-tions,of which 13 samples exceeded the standard(0.12%).The high exceeding rates of dust,noise,and exogenous chemi-cal toxins were found in large enterprises,medium-sized enterprises,and micro enterprises,with 6.35%(65/1 023),7.00%(202/2 884),and 0.51%(5/978),respectively.The enterprises with high excess rates of dust,noise and exoge-nous chemical toxicants were mainly distributed in Huangdao district,Jiaozhou city and Shibei district.Among the occupa-tional hazards exceeding the standard,the risk assessment for silica dust and benzene was level 4,while the risk assessment for xylene,manganese and their compounds was level 3.The correlation coefficient between the monitoring related data and the quality control data of Qingdao Occupational Health Tech-nology Quality Control Center was positive correlation(rs=0.82).Conclusion The key occupational hazard factors in Qingdao city are dust(silica dust)and noise,followed by benzene,xylene,manganese and their compounds.Among them,silica dust and benzene belong to high risk levels,while xylene,manganese and their compounds belong to medium risk levels.
Occupational diseasesHazardous factorsMonitoringRisk assessmentQuality control