Analysis of inner or extra-exposure for worker in carbon and coal tar process industries
10.3760/cma.j.issn.1001-9391.2017.04.010
- VernacularTitle: 职业人群煤焦油沥青内外接触水平分析
- Author:
Xiaochun WANG
1
;
Fang ZHANG
;
Ning JIA
;
Wei ZHANG
;
Xueyan ZHANG
;
Jue LI
;
Hua SHAO
Author Information
1. Beijing Occupational Hospital of Chemical Technology, Beijing 100093, China
- Publication Type:Case Reports
- Keywords:
Coal tar;
Pitch;
Occupational exposure
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2017;35(4):280-282
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the inner or extra-exposure of workers in carbon and coal tar process industries.
Methods:In May 2015, 271 exposure and 75 non-exposure workers in two of carbon and coal tar process industries in Shandong province were selected. Coal tar pitch (CTP) was detected according to the methods of GB17054-1997. The 1-OH-Nap、2-OH-Nap、1-OH-Pyr in urine were detected by high performance liquid Chromatography (HPLC) .
Results:The concentration of 1-OH-Nap、2-OH-Nap、1-OH-Pyr in urine of exposure group were significant higher than that of control group (P<0.05) , respectively. The urine concentration of 1-OH-Nap、2-OH-Nap、1-OH-Py in contact group tar and asphalt were 12.20, 12.55, 7.08 and 10.62, 8.73, 3.07 μg/gCr, and the concentration of them were 7.25, 8.54, 3.00 μg/gCr in container handle workers. Significant positive correlations were found between high or median CTP exposure and the urine concentration of 1-OH-Nap、2-OH-Nap、1-OH-Pyr in exposure groups (P<0.05) .
Conclusions:The inner or extra exposure level is relative and different for different type of work in these carbon and coal tar process industries.
