Burning of any fuel outdoors without the use of mechanical combustion enhancements.

the burning of any matter in such a matter that the products of combustion resulting from the burning are emitted directly into the outdoor atmosphere without passing through a stack or chimney.

the uncontrolled burning of waste materials in the open, in outdoor incinerators, or in an open dump, either intentionally or accidentally. Open burning is regulated in the Bay Area

Uncontrolled fire in a dump.

The illegal burning of waste materials in the open or in a dump (either accidental or intentional to reduce volume), which can produce smoke, odour and other toxic pollutants.

Uncontrolled fires in an open dump.