report no. 9/11
This report describes the experimental procedures and results obtained in acuteecotoxicity tests on several heavy fuel oil (HFO) samples. Water accommodatedfractions (WAFs) of these samples were tested for toxicity to the rainbow trout(Oncorhynchus mykiss), the crustacean zooplankter (Daphnia magna) and greenalgae (Selenastrum capricornutum). These results assist in determining theenvironmental hazard from heavy fuel oil.