Analysis of hexabromocyclododecane in construction waste : Testing an extraction-based approach
Vogt, Julian (2019)
Julkaisun pysyvä osoite on
http://urn.fi/URN:NBN:fi:amk-2019061817169
http://urn.fi/URN:NBN:fi:amk-2019061817169
Tiivistelmä
The flame retardant hexabromocyclododecane (HBCD), previously widely used in the polystyrene foam manufacturing industry, has been banned from production by being added to Annex A of the list of persistent organic pollutants by the Stockholm Convention. For this environmental concern, analysis methods for HBCD have to be tested in order to identify products which still contain this substance frequently, such as polystyrene foam in construction waste.
In this study, together with colleague Artem Yunakovskiy, field and laboratory tests of polystyrene foams were conducted in order to test an analysis method. Samples of polystyrene foam waste at two sites were taken with this study focusing on the analysis of samples taken at one of these two locations. Measurements were conducted using a portable x-ray fluorescence spectrometer in both field screening and laboratory testing. Polystyrene samples turned out to group in three clusters: One for high concentrations of HBCD, the other ones for medium and low concentrations.
It may be attested therefore, that one group of samples contained no HBCD but one of its replacements, one group showing medium concentrations contained medium levels of HBCD, potentially in conjunction with one of the replacements, while the last group of samples contained HBCD in considerable amounts.
In this study, together with colleague Artem Yunakovskiy, field and laboratory tests of polystyrene foams were conducted in order to test an analysis method. Samples of polystyrene foam waste at two sites were taken with this study focusing on the analysis of samples taken at one of these two locations. Measurements were conducted using a portable x-ray fluorescence spectrometer in both field screening and laboratory testing. Polystyrene samples turned out to group in three clusters: One for high concentrations of HBCD, the other ones for medium and low concentrations.
It may be attested therefore, that one group of samples contained no HBCD but one of its replacements, one group showing medium concentrations contained medium levels of HBCD, potentially in conjunction with one of the replacements, while the last group of samples contained HBCD in considerable amounts.