Basement – Why I am seeing brick dust on the basement walls

basementbrick

So lately I noticed a lot brick dust in my basement walls-should I be concerned? The house is a 100 year row house.
[enter image description here2
[enter image description here]3

Best Answer

Of course a photo would help. :)

But sans photo or any further details, my guess is you are seeing efflorescence which is essentially mineral deposits left from the migration of moisture passing through a porous wall (cement, brick, stucco, etc.)