ahhhhh follow the pictures...
in the first pic you can see the ploom of smoke starting at centennial hill.
in the second, you again can see the ploom at centennial hill. however, now you can see the huge smoke trail across the landscape.
the third pic is basically just an extension of the second. the smoke is blanketing mississauga.
you cant actually see a distinction between smog and the rest of the sky.
i joined the two pics together.