Im with you on this!Avgas has more lead than the old leaded auto gas that was sold in the late 70's early 80's. It also has more aromatics than pump gas. The lead scavengers/ detergents used in 100LL are bromide based and nastier than anything in auto gas.
Its also not more refined. What ever that means.
It is more consistent and doesn't contain poor quality streams pump gas does.
Its really stupid to use leaded fuel in hand held equipment.