Some people believe that one should not ever find aluminum in rainwater.
The question they should be asking is why would you NOT find aluminum in rainwater?
Aluminum is older than our solar system, it is found in meteorites over 4.5 billion years old.
Aluminum is one of the most abundant elements in earth's crust.
Aluminum and silica combine to create the most common mineral on earth, Feldspar.
Worldwide, the largest source of airborne mineral dust is the Sahara Desert,
which produces up to 200 million tons of mineral dust per year.
The second largest source is the Gobi Desert of China, .
These mineral dusts are composed mainly of silicon and aluminum oxides.
In 1967 and 1973, scientists measured aluminum in rain and snow and found levels comparable to those found today.
Why would you NOT find aluminum in rain water?