Saf Health Work.  2016 Dec;7(4):372-380. 10.1016/j.shaw.2016.06.001.

Estimates of the Number of Workers Exposed to Diesel Engine Exhaust in South Korea from 1993 to 2013

Affiliations
  • 1Department of Occupational Health, Catholic University of Daegu, Gyeongsangbukdo, Republic of Korea.
  • 2Department of Environmental Health, Korea National Open University, Seoul, Republic of Korea. pdw545@gmail.com
  • 3Department of Public Health, Keimyung University, Daegu, Republic of Korea.
  • 4Department of Biohealth Science, Changwon National University, Changwon, Republic of Korea.
  • 5Department of Occupational and Environmental Medicine, Catholic Kwandong University, Incheon, Republic of Korea.
  • 6Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency, Ulsan, Republic of Korea.
  • 7Ministry of Employment and Labor, Republic of Korea.
  • 8Finnish Institute of Occupational Health Work Environment, Helsinki, Finland.

Abstract

BACKGROUND
The aim of this study was to estimate the number of workers exposed to diesel engine exhaust (DEE) by industry and year in the Republic of Korea. METHOD: The estimates of workers potentially exposed to DEE in the Republic of Korea were calculated by industry on the basis of the carcinogen exposure (CAREX) surveillance system. The data on the labor force employed in DEE exposure industries were obtained from the Census on Establishments conducted by the Korea National Statistical Office from 1993 to 2013. The mean values of prevalence rates adopted by EU15 countries were used as the primary exposure prevalence rates. We also investigated the exposure prevalence rates and exposure characteristics of DEE in 359 workplaces representing 11 industries.
RESULTS
The total number of workers exposed to DEE were estimated as 270,014 in 1993 and 417,034 in 2013 (2.2% of the total labor force). As of 2013, the industry categorized as “Land transport” showed the highest number of workers exposed to DEE with 174,359, followed by “Personal and household services” with 70,298, “Construction” with 45,555, “Wholesale and retail trade and restaurants and hotels” with 44,005, and “Sanitation and similar services” with 12,584. These five industries, with more than 10,000 workers exposed to DEE, accounted for 83% of the total DEE-exposed workers. Comparing primary prevalence rates used for preliminary estimation among 49 industries, “Metal ore mining” had the highest rate at 52.6%, followed by “Other mining” with 50.0%, and “Land transport” with 23.6%.
CONCLUSION
The DEE prevalence rates we surveyed (1.3–19.8%) were higher than the primary prevalence rates. The most common emission sources of DEE were diesel engine vehicles such as forklifts, trucks, and vans. Our estimated numbers of workers exposed to DEE can be used to identify industries with workers requiring protection from potential exposure to DEE in the Republic of Korea.

Keyword

carcinogen exposure; diesel engine exhaust; exposure prevalence rate
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