I know that borough leaders are aware of this, and perhaps there can be some liaison with the boroughs, as well, through the Association of London Government (ALG).
That was originally where I was going, but we seem to have unearthed a whole new interesting line of enquiry. Perhaps you could come back with a written response to say what is being done rather than us put you on the spot here.
Are you concerned about the additional noise and pollution that is already being suffered by those living close to the edge of the congestion charging zone a result of rat running? If so, have you raised these concerns with the Mayor and what was the response? .
What work are you doing with the waste disposal authorities across London to ensure that their priorities fit in with those of the Mayor? How successful have you been? .