Table 3.

Number of publications concerning epigenetics for each chemical or related occupation included in the systematic literature review.

		DNA methylation				Histone modification				Non-coding RNA
		Human (Homo sapiens)	Mouse (Mus musculus)	Rat (Rattus norvegicus)	Other (see footnotes)	Human (Homo sapiens)	Mouse (Mus musculus)	Rat (Rattus norvegicus)	Other (see footnotes)	Human (Homo sapiens)	Mouse (Mus musculus)	Rat (Rattus norvegicus)	Other (see footnotes)	Total
Benzo[a]pyrene	in vitro	11	6		3*, 1†	6	2		1‡	16	3			48
	in vivo	5	4		3§, 2#,		1	1		1	7	1		25
Aflatoxins (naturally occurring mixtures)	in vitro	1			1*, 1&				1&	7	1			12
	in vivo	10	2	1	1¶		1		1¶	3		2		21
Benzene	in vitro	5	1	1				1						8
	in vivo	9	1	1		1	1			3	2			18
Formaldehyde	in vitro	1				2			1©	1				5
	in vivo										2	1	1$	4
Coke production, occupational exposures	in vitro													0
	in vivo	6								2				8
1,3-Butadiene	in vitro													0
	in vivo		3				3							6
Sulfur mustard	in vitro	1								1				2
	in vivo									3	1			4
Vinyl chloride	in vitro													0
	in vivo	3												3
4-Aminobiphenyl	in vitro					1				1				2
	in vivo													0
Benzidine	in vitro													0
	in vivo		1											1
4,4'-Methylenebis(2- chlorobenzenamine)	in vitro							1						1
	in vivo													0
Occupational exposure as a painter	in vitro													0
	in vivo	1												1

^*Oligodeoxynucleotides

^†Hamster (Mesocricetus auratus)

^‡Frog (Xenopus borealis)

^§Zebrafish (Danio rerio)

^#Mummichog fish (Fundulus heteroclitus)

^&Pig (Sus domesticus)

^¶Rainbow trout (Oncorhynchus mykiss)

^©Synthetic peptide

^$Cynomolgus macaques (Macaca fascicularis)