of municipal solid waste was to dump it at
open siteseof which there are over 2000eor at sea. In 1993, the
accident at the Umraniye-Hekimbasi open dumpsite, which took
place in _Istanbul as a result of an explosion of the gases compressed
within the dumping area, resulting in the death of 39 people
(Kocasoy and Curi, 1995), became a starting point in the handling of
the municipal solid waste problem.