This petition was rejected

The Government e-Petitions Team gave the following reason:

The setting up of a Clean Air Zone in the Greater Manchester area is a matter for the Mayor of Greater Manchester and the Greater Manchester Combined Authority, not the UK Government or Parliament. The Government is therefore not directly responsible for the action this petition calls for.

You could raise your issue with a local councillor who represents you. You can find out who your local councillors are, and how to contact them, by entering your post code here:
www.gov.uk/find-your-local-councillors

You can also petition your local authority directly. Find out how to petition your council here: democracy.manchester.gov.uk/mgEPetitionListDisplay.aspx

We have published the following petition, which you might like to sign:

Revoke local government powers to charge CAZ, LEZ, and ULEZ: petition.parliament.uk/petitions/599985