It seems like your little bot isn't up on the latest science. So let me link you to some fascinating information about heavy metals in jet fuel https://www.semanticscholar.org/paper/Trace-Element-and-Polycyclic-Aromatic-Hydrocarbon-Shumway/0202ae267403237d4ef135b3f2590c8586c0f49b#extracted Perhaps you should take your bot down for posting misinformation?