Antifreeze is used to protect an automobiles engine from freezing in the winter and overheating in the summer. As an engine operates and wears, it will release fine particles of dirt and metal into the antifreeze. Once contaminated with dirt and metal particles, the antifreeze must be replaced (usually every couple of years). It is this contaminated antifreeze that presents the majority of problems to the environment and humans.

Hazards:

The main hazardous ingredient in most antifreeze is ethylene glycol. Ethylene glycol is poisonous when ingested; it can cause organ damage and even death. Once ingested, ethylene glycol can cause depression followed by kidney, liver, heart and brain damage. The American Journal of Emergency Medicine estimates that in 1999 there were 5,427 exposures resulting in 101 major injuries (organ and brain damage) and 9 deaths. In addition, Antifreeze can pick up toxic heavy metals from the engine, such as zinc, copper, and lead.

Antifreeze that reaches the environment (that contains ethylene glycol) smells and tastes sweet to pets and other animals. According to the Colombia Animal Hospital, each year 10,000 cats and dogs are victims of accidental antifreeze poisoning.

Alternatives:

Propylene glycol, which retains the same functional qualities of ethylene glycol, is recognized as a less toxic alternative by the Food and Drug Administration (FDA).

Handling & Storage:

Disposal: