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River
Water Pollution Crisis In Lebanon
A
group of students from Eastwood College have taken part in a project involving
water pollution in Lebanon
rivers. They decided on this project because of their observation that
people behave very imprudently when it comes to taking care of the rivers.
This is what they had to say
about their project:
We chose four main parameters for
our study:
1) pH
2) Nitrate
3) Fecal Coliform
4) Chemical Oxygen Demand (COD)
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Background:
Testing for pH is important
because most natural waters are buffered by a carbon-dioxide bicarbonate
system. This tends to keep the pH of most waters around 7 to 7.5, unless
large amounts of acid or base are added to the water.
Bacteria and viruses from human and animal
wastes that are carried to streams can cause diseases. Fecal Coliform
bacteria, found in the intestines of warm-blooded animals, is the bacteria
that water quantity standards are written for. The standard is 200 colonies
per 100 ml of sample water (CFU). Typical sources of bacteria are sewage
systems, poor pasture management and animal keeping practices, pet wastes,
and urban runoff. High bacteria levels can limit the uses of water or
contaminate drinking water in ground level wells.
Nitrates are natural components of fresh and
salt waters and are the principal source of nitrogen for all aquatic flora.
The majority of nitrates come from sewage treatment works and agricultural
processes, particularly the leakage of nitrates from fertilizers and manure.
There are two problem areas associated with high nitrate concentration
in water: health and eutrophication, which can deprive fish and invertebrates
of oxygen in the water.
COD is a measure of the total quantity
of oxygen required to oxidize all organic material into carbon
dioxide and water.
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Our Project:
We
concentrated on the results of tests on two rivers: Nahr Ibrahim,
and Nahr Beirut. The first field day was Wednesday 13th
of February, 2002, in which we went to Nahr Ibrahim. We started
at its source, Afka, and continued along its course, until we reached
the outflow in Okaibeh.
The second field day was the 6th
of March. We went to Hammana, which is the source of Nahr Beirut.
To get to the spring, we had to climb a steep rock face, endangering
our lives for about two hours. Afterwards, we proceeded to make
our way to the outflow. The smell we were greeted with was very
harsh on our senses. There was a drastic difference between the
water there, and the water at the source, which we drank from.
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Hammana-
Beirut Source |

Sewage-Beirut
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Test
results showed that the water was highly polluted by quarries, which
made the water pH basic, as well as with litter such as plastic bottles,
chairs, and a metal bed. There were also tires, colossal bags of trash,
as well as many other unprintable things. Another major problem is
sewage. Villages around the courses of the rivers do not have proper
sewage systems; hence the sewage goes right into the river, which
increases the rate of fecal coliform bacteria by immense proportions.
Our
next step is to seek the help of the Ministry of the Environment,
to tackle the pollution problem in any way possible. We have a few
ideas about the matter, such as banning picnics around river areas
and their tributaries.
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This Project was
conducted by Megan Khoury, Mariane Keushgeurian, Voula Simhairi, Simon
Atkins, Joe Aghassi, Nancy Nassour, James Helou, and Sean Atkins.

Shuwwan-Ibrahim Tributary
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