Banner outside a school on Pond Street, Hampstead

• ”PLEASE switch off your engines while waiting”, says the polluted banner outside a school on Pond Street, by the Royal Free Hospital.

Just look at the pollution that is on the banner and going over the fence into children’s lungs.

Surely the owners of this school should be raising their walls and telling parents to walk to school or take public transport?

It is not OK for families to drive one child from out the area to our area and pollute our citizens and streets.

It’s time that the private schools made their parents sign a contract for car-sharing or school buses like Abacus school does…

But preferably scoot or walk to school, which bring benefits of families chatting on their way to school.

LINDA GROVE, NW3