SEQUENCES AND CONSEQUENCES OF POLLUTION IN NORTHERN EGYPTIAN LAKES. 1. LAKE BOROLLOS.

SEQUENCES AND CONSEQUENCES OF POLLUTION

IN NORTHERN EGYPTIAN LAKES.

1. LAKE BOROLLOS.

ALI I. BELTAGY

Institute of Oceanography and Fisheries, Alexandria, Egypt.

ABSTRACT
Egypt northern lakes act as receipients of industrial.
domestic and agricultural wastes. The degree of pollution
of each lake is different. Lake Borollos is considered the
cleanest of them all. However, i.t is subjected to several
changes that may affect its ecology and endanger the life
there. The chemical and biological characteristics of this
lake are sURll1arised, and the possible effect of the changes
in the environment due to eutrophication or excessive use
of insectisides are discussed. Also, the effect of changes
in the flushing rate of the lake is considedred. It is
concluded that the lake needs further coordinated studies
since the present data is not suffecient to make any unbiased
conclusion.