if a sink of poison is unhealthy then the peat consuming that poison will be unhealthy
gaseous_phosgene is poisonous_gas. poisonous_gas is chemically_harmful_substance. peat is organic_matter. pollution has bad_odour poisonous_gas is toxic_substance. peat is fuel. poison is substance. poison is destructiveness. since is smelly_dirty_and_unhealthy. peat_dried is fuel.