Carbon monoxide is one such agent, familiar to smokers. A Hepatotoxin is a chemical capable of causing liver damage. The H ealth and S afety E xecutive. The HSE is responsible for proposing and enforcing safety regulations throughout UK industry and academia. Publications are available on a wide variety of safety-related issues.
Hypoxia is a condition defined by a low supply of oxygen.
I An Inhibitor is a material which is added to a chemical to prevent an unwanted reaction. I nternational A gency for R esearch in C ancer. I nstitute for O ccupational S afety and H ealth. An Irritant is a chemical which may cause reversible inflammation on contact. This measure is generally used when exposure to a chemical is through the animal breathing it in, while the LD50 is the measure generally used when exposure is by swallowing, through skin contact, or by injection.