Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Brage NMBUarrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
Brage NMBU
Master thesis . 2025
Data sources: Brage NMBU
addClaim

Advanced Quantification of Tire Wear Additives: 6PPD-Q as an Example

Authors: Krog, Maren;

Advanced Quantification of Tire Wear Additives: 6PPD-Q as an Example

Abstract

Tire wear particles (TWP), produced from mechanical release, are a large anthropogenic pollutant source. N,N’-substituted p-phenylenediamine (PPD) is a group of compounds used as an additive in commercial rubber. They increase durability and protect the tires against high temperature, pressure, oxygen and ozone. Along the discovery of the PPDs toxicity at environmental concentrations, the concern about these quinones has increased. For Coho Salomon and Brook trout a 24-h LC50 value of respectively 0.095 μg/L and 0.59 μg/L has been observed of 6PPD-Q. For Rainbow trout it’s observed a 72-h LC50 value of 1.0 μg/L. Other PPDs like IPPD and DPPD have respectively shown allergic contact dermatitis and reproductive and developmental toxicity in rats. To enable the extraction and analysis of the quinones, a method was developed using an Agilent 1200 HPLC system coupled with an Agilent 6410 series triple quadrupole MS system. The analytical method was optimized for the qualitative and quantitative determination of the selected quinones. The limit of quantification (LOQ) was determined to 1 ng/g for 6PPD-Q and 0.6 ng/g for the remaining quinones (DPPD-Q, PTPD-Q, IPPD-Q, CPPD-Q, SPPD-Q, 66PD-Q and 77PD-Q). The goal of this study is to get a first overview of these quinones, their concentration and distribution in Arctic surface soil and water samples in Longyearbyen (Svalbard, Norwegian Arctic). During the investigation of the selected quinones, a qualitative determination of DPPD-Q and a quantitative determination of 6PPD-Q and PTPD-Q in soil samples were achieved. DPPD-Q was qualitatively determined in all soil samples collected, but because of the lack of a clean blank sample it was not possible to quantitatively determine this quinone. For 6PPD-Q and PTPD-Q the highest observed concentration was respectively 21,2 ng/g and 2,3 ng/g in dry weight. Of the 53 samples analyzed, 6PPD-Q was quantitively determined in 25 samples, whereas PTPD-Q was only quantitatively determined in 4 samples. The conclusion of this study was that a further development of the method is necessary to get a clearer overview of the concentration and distribution of PTPD-Q and DPPD-Q in Longyearbyen, Svalbard.

Country
Norway
Related Organizations
  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green
Related to Research communities