Table 1.

Number of workers examined special health check for formaldehyde by types of industries and years in Korea, 2001–2010

Industry	2001	2002	2003	2004	2005	2006	2007	2008	2009
D. Manufacturing	3359	4352	4912	5257	5527	7220	5371	9050	8305
P. Human health and social work activities	108	1072	1366	1915	2324	2845	2204	4643	4473
N. Public administration and defense; compulsory social security			13	197	1036	1323	1135	3128	1018
R. Membership organizations, repair and other personal services	32	69	125	176	255	222	94	461	131
M. Business facilities management and business support services	33	15	107	147	84	191	172	302	510
F. Construction	1	4	25	16	123	79	16	58	6
Others	12	24	111	113	126	91	69	83	96
Total	3545	5536	6659	7821	9475	11,971	9061	17,725	14,539

Industries are classified by the 8th Korean standard industrial classification

Source: Kim EA et al. [12]