The fact alone that the BA guy Richard Westgate's autoposy showed organophosphate poisoning as a cause of death should sound alarm bells with everyone as to the level of danger this stuff poses. Here is an interesting snippet from this article. https://www.flightglobal.com/news/ar...soning-402138/

"Abou-Donia and his colleagues are also investigating the January 2014 death of an unnamed 34-year-old BA airline steward, whose tissue samples indicate degradation that appears identical to the pilot’s case, and is “consistent with organophosphate-induced neurotoxicity”. Both Westgate and the steward died in their beds.

Abou-Donia says Westgate’s case is “one of the worst cases of organo-phosphate [OP] poisoning I have come across”.

“In all my specialised tests for neuro-specific auto-antibodies he was the worst by far,” he says. “The air transport industry constantly overlooks vital components of OP poisoning: the combined effects of multiple compound exposure – repeated low-dosage exposure is just as dangerous as a single large dose (often more so) – and the genetic predisposition to toxicity of the individual’s genes.”

Abou-Donia's latter point is particularly important, as some of the fume events investigated saw one pilot react badly to the neurotoxins while the other was apparently unaffected, which led to confusion."