Bedömning av den potentiella föroreningsnivån vid plantskolor och växthus – Utvärdering av en MIFO fas 1-matris
(2013) MVEM12 20131Studies in Environmental Science
- Abstract
- Greenhouses and nursery-gardens is an important business in Sweden, covering a land area of 3,0 million square meters in 2011. The downside of this otherwise blooming business is however the use of so called PPPs, plant protection products, which is connected to it. Historically the use of PPPs has been widespread and the handling has been conducted in an off-hand way. During the post-war time the synthesizing and use of organic compounds peaked, and among the most famous chemicals used were DDT and Hexachlorobenzene to mention a few. Many of these chemicals turned out to be strong contaminants with high persistence, and traces of them are still seen in the environment to this day, half a century later.
The administrative Country Boards... (More) - Greenhouses and nursery-gardens is an important business in Sweden, covering a land area of 3,0 million square meters in 2011. The downside of this otherwise blooming business is however the use of so called PPPs, plant protection products, which is connected to it. Historically the use of PPPs has been widespread and the handling has been conducted in an off-hand way. During the post-war time the synthesizing and use of organic compounds peaked, and among the most famous chemicals used were DDT and Hexachlorobenzene to mention a few. Many of these chemicals turned out to be strong contaminants with high persistence, and traces of them are still seen in the environment to this day, half a century later.
The administrative Country Boards of Sweden are currently working with inventories of businesses that may have had an environmental impact, and the turn has come to the greenhouses and nursery-gardens. A tool to compare the individual businesses is the so called MIFO, an inventory checklist which ultimately combines five parameters to the final risk classification: pollution level, dispersion, hazard, protection value and sensibility. Of these five parameters, all but the pollution level can be decided using special tables, whereas the pollution level is rather unique for each object and depending on a variety of sub-parameters.
In order to produce a reliable risk classification for an object, a value of the pollution level has to be assigned. Therefore a matrix has been produced which covers certain aspects of a greenhouse / nursery-garden business that may have had an influence on the supposed pollution level at the site. This matrix, the Karlsson and Eriksson matrix, has been tested within this thesis in order to evaluate its accuracy and reliability.
The matrix uses a scoring system where information for each aspect leads to a score which reflects the potential pollution level. This score can then be transformed and put into the MIFO risk classification. The matrix was tested using made-up scenarios of greenhouses which all had a determined pollution level score, and then the availability of information that was put into the matrix varied between 30, 50, 70 and 85% of the total information, following either a determined or random selection.
The results show that the matrix is highly sensitive to information availability since the score is based on an addition of information. Furthermore the scoring system is not perfectly tuned as an addition of an outdoor cultivation may result in a lowering of the total pollution level score. The aspects which are included in the matrix are valid, but yet a few are lacking such as the potential presence of a cistern or the heating method.
In conclusion the matrix is a necessary tool to evaluate the potential pollution level, but while using it the evaluator needs to be aware of the amount and quality of information available. A way of avoiding an underestimation of the potential pollution level is to use a subtracting scoring system rather than the summing which is currently used. In this way, the score can be subtracted as information is added which will eliminate the risk of a lower score because of missing information. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/4175439
- author
- Sandin, Sofie LU
- supervisor
- organization
- course
- MVEM12 20131
- year
- 2013
- type
- H2 - Master's Degree (Two Years)
- subject
- keywords
- Växthus, förorening, matris, MIFO
- language
- Swedish
- id
- 4175439
- date added to LUP
- 2013-12-19 16:56:20
- date last changed
- 2013-12-19 16:56:20
@misc{4175439,
abstract = {{Greenhouses and nursery-gardens is an important business in Sweden, covering a land area of 3,0 million square meters in 2011. The downside of this otherwise blooming business is however the use of so called PPPs, plant protection products, which is connected to it. Historically the use of PPPs has been widespread and the handling has been conducted in an off-hand way. During the post-war time the synthesizing and use of organic compounds peaked, and among the most famous chemicals used were DDT and Hexachlorobenzene to mention a few. Many of these chemicals turned out to be strong contaminants with high persistence, and traces of them are still seen in the environment to this day, half a century later.
The administrative Country Boards of Sweden are currently working with inventories of businesses that may have had an environmental impact, and the turn has come to the greenhouses and nursery-gardens. A tool to compare the individual businesses is the so called MIFO, an inventory checklist which ultimately combines five parameters to the final risk classification: pollution level, dispersion, hazard, protection value and sensibility. Of these five parameters, all but the pollution level can be decided using special tables, whereas the pollution level is rather unique for each object and depending on a variety of sub-parameters.
In order to produce a reliable risk classification for an object, a value of the pollution level has to be assigned. Therefore a matrix has been produced which covers certain aspects of a greenhouse / nursery-garden business that may have had an influence on the supposed pollution level at the site. This matrix, the Karlsson and Eriksson matrix, has been tested within this thesis in order to evaluate its accuracy and reliability.
The matrix uses a scoring system where information for each aspect leads to a score which reflects the potential pollution level. This score can then be transformed and put into the MIFO risk classification. The matrix was tested using made-up scenarios of greenhouses which all had a determined pollution level score, and then the availability of information that was put into the matrix varied between 30, 50, 70 and 85% of the total information, following either a determined or random selection.
The results show that the matrix is highly sensitive to information availability since the score is based on an addition of information. Furthermore the scoring system is not perfectly tuned as an addition of an outdoor cultivation may result in a lowering of the total pollution level score. The aspects which are included in the matrix are valid, but yet a few are lacking such as the potential presence of a cistern or the heating method.
In conclusion the matrix is a necessary tool to evaluate the potential pollution level, but while using it the evaluator needs to be aware of the amount and quality of information available. A way of avoiding an underestimation of the potential pollution level is to use a subtracting scoring system rather than the summing which is currently used. In this way, the score can be subtracted as information is added which will eliminate the risk of a lower score because of missing information.}},
author = {{Sandin, Sofie}},
language = {{swe}},
note = {{Student Paper}},
title = {{Bedömning av den potentiella föroreningsnivån vid plantskolor och växthus – Utvärdering av en MIFO fas 1-matris}},
year = {{2013}},
}