This is the typical area at rpm dial where dust comes and it is solely due to interior compressed air cleaning at service station.
I had my City 2012 with 94k kms driven in 4 years.... not even a single dust particle in the meter coz it was always vacume cleaned internally.....
What you have to do now is to make it open and clean it through car technician. Than later on religiously follow interior vacume cleaning.... do not worry about meter being opened.
The only and final solution.....