Series-AFigureLikeThat

A Figure Like That
the pollutant emission levels in the central
metropolitan areas was still at high, dangerous
levels. Nonetheless, from what his parents had told
him that, when THEY were young, ALL vehicles,
including public transports, used combustion
engines which created serious respiratory diseases in
the public and there were NO restrictions of where
cars could go across London; it was a bit of a free
for all and the health of the population was just seen
as a bit of an afterthought. And from what he had
read, listened to or had watched, historically the
further you go back in time since the start of the
industrialisation in Britain, the pollutant levels got
just got worse. As an example, in the twentieth
century combustion engines needed an octane
provider to stop them detonating/ blowing up and to
protect the valves and so, even though other
chemicals were available such as ethanol, an
American biochemist in General Motors discovered
that lead (a malleable and soft metal) had these
octane properties at a much significantly lower price.
Lead is however, it turn out, particularly toxic,
especially to the nervous system and biological
enzymes that are essential for the body and it creates
symptoms that included intellectual disabilities,
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