of ships' crews and the operation of vessels. styrene monomer is a chemical commodity. plants. Lintec considers to be acceptable. managing director John Dixon. ppm range. over 20% having more than 100 ppm styrene concentration. the source of the problem. Dixon. fuel. Secondly, there is the health and safety issue. knowingly puts their crews at risk from inhaling chemical vapours. will damage the engine. under some circumstances it can polymerise and cause fuel filter clogging. needs to be controlled. because it poses a significant health risk. launched as an add-on service to normal fuel testing last year. layer of forensic protection on a routine basis, at very small cost. edge. launched this thinking about engine damage," says Dixon.