الفهرس 
INTRODuctION
The Nile BasinOnly 14 pages are availabe for public view
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Abstract
The objective of this thesis is directed towards designing monitoring
networks for water quality managemenr inthe River Nile.
Four levels of monitoring networks for water quality are presented in this thesis
based on a sound scientific analysis of historical data to obtain as much data and
information as needed. These levels are:
• Monthly sampling frequency for the primary network which includes
54 stations (basic and impact) and all point sources of pollution for
baseline information;
• Biweekly sampling frequency for the second .nerwork which includes
26 basic stations and heavily polluted point sources for detecting trends;
• As required by inspection for law enforcement for the third network
which includes 39 impact stations and inspected point sources; and
• Daily sampling frequency at Abu Simble sampling station (reference
station) for early warning.
A group of specific parameters should be measured in each level of water
quality monitoring networks.
In addition to that, 13 sampling stations are selected for monitoring the
quality of the bottom and suspended sediments. These stations are chosen at the
same locations of the designated water quality stations. Basic stations are used
for baseline data and future comparisons. Impact stations are used to detect the
impact and spatial distribution of contaminants from point sources of pollution
inputs.
Sediment samples should be monthly collected in the period between
May to October and bimonthly in the period between November to April.
Another set of samples which is core samples of 20 em are to be taken at the
13 sampling stations every 5 years for detecting contaminants accumulation. A
group of specific substances are measured according to the monitoring
objectives.