Norwegian dust

Once my mother visited me abroad,
she exclaimed: "The dust inside the house
in this country is so different from the dust
we have in Norway. It looks quite different."

I did not think too much about it at the time.

Now, after living in Norway for two and
a half years, I know that the house dust here
does indeed look different.

Here it is light grey and form dustballs.
In my other country I think it was more sandy
and had a slightly reddish tint.

There I would wash the tiled floors with lots of
water. Here I use a slightly wet rag on the old
wooden floors, but mostly the vacuum cleaner.

A national version of house dust?
Does it exist?