Converse of object

• suspect: Many of these substances are known or suspected carcinogens.

• detect: A key aim was to examine the ability of the individual alternative cancer models to detect human carcinogens.

• know: Some key facts include:- Passive smoke contains over 50 known carcinogens.

• recognize: The cancer-causing chemicals used in the analysis are all recognized carcinogens.

• contain: A cup of coffee contains natural carcinogens equal to at least a year's worth of carcinogenic synthetic residues in the diet.

• identify: Of the animal models assessed there was evidence that p53 +/- transgenic mouse model could identify some genotoxic carcinogens.

Preposition: at

• work: It also says that there is evidence that the numbers exposed to carcinogens at work could be increasing.

Adjective modifier

• genotoxic: In addition appropriate data were already available on a number of genotoxic carcinogens in some of these animal models.

• non-genotoxic: One members asked whether there was any evidence that non-genotoxic carcinogens could induce tumors over a short duration of exposure.

• potent: Aflatoxins are fungal toxins, which are potent carcinogens.

• known: Doll's own pet theory had been tar on the roads, as tar is a known carcinogen.

• probable: Plywood, for example, can contain formaldehyde - a " probable carcinogen " , according to the International Agency for Research on Cancer.

• suspected: The equivalent German classification lists 17 human and 42 suspected human carcinogens.

Modifies a noun

• assessment: COC draft revised guidelines on chemical carcinogen risk assessment 48.

• risk: COC draft revised guidelines on chemical carcinogen risk assessment 48.

Noun used with modifier

• rodent: Many of the chemical selected for this trial are rodent carcinogens that are not human carcinogens.

• chemical: In June 2004, the COC was provided with a short introduction to the HSE plan for a program of work on chemical carcinogens.

• lung: The comparison with white collar workers was performed to control for other occupational lung carcinogens.

Preposition: in

• smoke: Possibly, these nutritional supplements are not able to overcome the widespread damage to DNA caused by the carcinogens in cigarette smoke.

• animal: The development of methods for detecting early markers for non-genotoxic chemical carcinogens in animals or using other short term tests.