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Geografiska informationssystem för studier av polyaromatiska kolväten (PAH) : undersökning av djupvariation i BO01-området, Västra hamnen, Malmö, samt utveckling av en matematisk formel för beräkning av PAH-koncentrationer från ett kontinuerligt utsläpp

Lalloo, David (2000) In Lunds universitets Naturgeografiska institution - Seminarieuppsatser
Dept of Physical Geography and Ecosystem Science
Abstract
At the end of August 1999, the local government council of Malmö city decided that
the area known as Kvarteret Bilen would be made available for the European Housing
Exhibition 2001 (Bo01-mässan). Kvarteret Bilen extends over approximately 80
hectars and includes the western parts of the Western Harbour area (Västra hamnen)
of Malmö.
Kvarteret Bilen as a whole, but especially the western sections of this area, the socalled
Bo01 section, has been the subject of heated discussions. This is mainly due to
the fact that the ground in question has proven to be contaminated to a certain extent
by different chemical compounds. Investigations undertaken during 1998 showed sporadically high concentrations for
especially one chemical group:... (More)
At the end of August 1999, the local government council of Malmö city decided that
the area known as Kvarteret Bilen would be made available for the European Housing
Exhibition 2001 (Bo01-mässan). Kvarteret Bilen extends over approximately 80
hectars and includes the western parts of the Western Harbour area (Västra hamnen)
of Malmö.
Kvarteret Bilen as a whole, but especially the western sections of this area, the socalled
Bo01 section, has been the subject of heated discussions. This is mainly due to
the fact that the ground in question has proven to be contaminated to a certain extent
by different chemical compounds. Investigations undertaken during 1998 showed sporadically high concentrations for
especially one chemical group: polycyclic aromatic hydrocarbons (PAH).
The first part of the paper describes the use of a mathematical equation (Fetter 1994)
to calculate the concentration of PAH from a continuous discharge at a given time by
employing Geographical Information System (GIS). Even the constraints of the
equation are discussed, as well as the consequences that follow as a result of using
GIS.
The second part of the paper focuses on the connections between the content of
carcinogenic PAH in Kvarteret Bilen and the ground water level and type of filling
material. It also describes several interpolation methods, none of which was successful
in the analysis however. Known point values of PAH had to be used in the analysis
instead.
In order to study the relationships (mentioned above), four hypotheses were put
forward: 1) the PAH will show low concentration values in the interval where the
ground water is fluctuating; 2) the concentration level of PAH will be higher in the
saturated zone as well as in the uppermost layer of the unsaturated zone; 3) every
PAH compound will vary in a similar way from the ground level and downwards and,
4) areas containing remains of asphalt, foundry discharge and impregnated wood,
ought to present the highest concentration levels.
During the analysis, all of the hypotheses were confirmed. The interpolation
techniques could not be carried out since the levels of concentration of PAH varied
too much between known points.
Applying GIS to the mathematical equation in Fetter (1994) had some advantages.
One was the possibility to calculate concentrations for an entire area and not just for a
specific point.
The results showed that if there is a continuous discharge, the concentration values get
higher closer to the discharge area compared to values further away, if the time level
is set to be the same. Also, a longer time limit generates higher concentration values
provided the distances are the same. (Less)
Please use this url to cite or link to this publication:
author
Lalloo, David
supervisor
organization
year
type
H1 - Master's Degree (One Year)
subject
keywords
geomorphology, physical geography, hydrologi, hydrology, grundvatten, groundwater, emissions, polycyclic aromatic hydrocarbons, pedology, cartography, climatology, naturgeografi, geomorfologi, marklära, kartografi, klimatologi
publication/series
Lunds universitets Naturgeografiska institution - Seminarieuppsatser
report number
81
language
Swedish
additional info
Peter Rothstein på VBB VIAK AB, Malmö.
id
1332916
date added to LUP
2005-10-26 00:00:00
date last changed
2011-11-30 15:38:44
@misc{1332916,
  abstract     = {{At the end of August 1999, the local government council of Malmö city decided that
the area known as Kvarteret Bilen would be made available for the European Housing
Exhibition 2001 (Bo01-mässan). Kvarteret Bilen extends over approximately 80
hectars and includes the western parts of the Western Harbour area (Västra hamnen)
of Malmö.
Kvarteret Bilen as a whole, but especially the western sections of this area, the socalled
Bo01 section, has been the subject of heated discussions. This is mainly due to
the fact that the ground in question has proven to be contaminated to a certain extent
by different chemical compounds. Investigations undertaken during 1998 showed sporadically high concentrations for
especially one chemical group: polycyclic aromatic hydrocarbons (PAH).
The first part of the paper describes the use of a mathematical equation (Fetter 1994)
to calculate the concentration of PAH from a continuous discharge at a given time by
employing Geographical Information System (GIS). Even the constraints of the
equation are discussed, as well as the consequences that follow as a result of using
GIS.
The second part of the paper focuses on the connections between the content of
carcinogenic PAH in Kvarteret Bilen and the ground water level and type of filling
material. It also describes several interpolation methods, none of which was successful
in the analysis however. Known point values of PAH had to be used in the analysis
instead.
In order to study the relationships (mentioned above), four hypotheses were put
forward: 1) the PAH will show low concentration values in the interval where the
ground water is fluctuating; 2) the concentration level of PAH will be higher in the
saturated zone as well as in the uppermost layer of the unsaturated zone; 3) every
PAH compound will vary in a similar way from the ground level and downwards and,
4) areas containing remains of asphalt, foundry discharge and impregnated wood,
ought to present the highest concentration levels.
During the analysis, all of the hypotheses were confirmed. The interpolation
techniques could not be carried out since the levels of concentration of PAH varied
too much between known points.
Applying GIS to the mathematical equation in Fetter (1994) had some advantages.
One was the possibility to calculate concentrations for an entire area and not just for a
specific point.
The results showed that if there is a continuous discharge, the concentration values get
higher closer to the discharge area compared to values further away, if the time level
is set to be the same. Also, a longer time limit generates higher concentration values
provided the distances are the same.}},
  author       = {{Lalloo, David}},
  language     = {{swe}},
  note         = {{Student Paper}},
  series       = {{Lunds universitets Naturgeografiska institution - Seminarieuppsatser}},
  title        = {{Geografiska informationssystem för studier av polyaromatiska kolväten (PAH) : undersökning av djupvariation i BO01-området, Västra hamnen, Malmö, samt utveckling av en matematisk formel för beräkning av PAH-koncentrationer från ett kontinuerligt utsläpp}},
  year         = {{2000}},
}