Analyzing the prevalence of key occupational hazards in 56 printing enterprises in Shenzhen City
- Author:
LIAO Jing TAN Cheng long YU Bi kun
- Publication Type:Journal Article
- Keywords:
Printing industry Organic solvent Toluene n hexane Noise Detection Key occupational hazard factor Key work sites
- From:
China Occupational Medicine
2022;49(05):596-
- CountryChina
- Language:Chinese
-
Abstract:
Objective
To investigate the prevalence of the occupational hazard of organic solvent and noise in printing and
Methods
record medium production enterprises in Longgang District of Shenzhen City. A total of 56 printing and record
medium production enterprises were selected as the study subjects by judgmental sampling method to analyze the worksite
Results
survey of occupational health and the key occupational hazard factors. There were 256 organic solvent samples
，
detected in 56 enterprises which included a total of 148 terms and 1 358 categories of volatile constituents. The top three
（ ）， - （ ） （ ）
volatile constituents were toluene 35.5% n hexane 25.7% and methanol 23.8% . The top three detected samples of the
（ ， ， ， ， - ， ，- ，
eight key chemical occupational hazard factors benzene toluene xylene ethylbenzene n hexane 1 2 dichloroethane
） ， - ，
trichloroethylene and chloroform were toluene n hexane and ethylbenzene. In the workplace air toluene was the most risk
，
factor of occupational hazard factors in enterprise and in sample detection while no trichloromethane was detected. The toluene
in workplace air was found to exceed the national standard with the rate of 2.6%. It showed that 27.9% of the work sites were
found occupational noise hazard which was over national standard in the 10 key work sites. Only 64.3% and 57.1% enterprises
-
performed occupational hazard factors detection and occupational health examination. Both none or invalid toxicant proof
-
facilities accounted for 33.9% of the enterprises. Both none or invalid noise proof facilities accounted for 78.6% of the
Conclusion ， -
enterprises. The occupational hazards factor of toluene n hexane and noise were serious in printing and record
，
medium production enterprises in Longgang District of Shenzhen City and the occupational health management was imperfect.
The occupational regulation should be enhanced in this industry.
