Differentiating and quantifying carbonaceous (tire, bitumen, and road marking wear) and non-carbonaceous (metals, minerals, and glass beads) non-exhaust particles in road dust samples from a traffic environment
Artikel i vetenskaplig tidskrift, 2022
EDX) analytical approach to classify and quantify the relative number of the following subclasses contained in environmental road dust: tire wear particles (TWP), bitumen wear particles (BiWP), road markings, reflecting glass beads, metallics, minerals, and biogenic/organics. The method is non-destructive, rapid, repeatable, and enables information about the size, shape, and elemental composition of particles 2–125 μm.
The results showed that the method enabled differentiation between TWP and BiWP for particles > 20 μm with satisfying results. Furthermore, the relative number concentration of the subclasses was similar in both analyzed size fractions (2–20 μm and 20–125 μm), with minerals as the most dominant subclass (2–20 μm x̄ = 78%, 20–125 μm x̄ = 74%) followed by tire and bitumen wear particles, TBiWP, (2–20 μm x̄ = 19%, 20–125 μm x̄ = 22%). Road marking wear, glass beads, and metal wear contributed to x̄ = 1%, x̄ = 0.1%, and x̄ = 1% in the 2–20-μm fraction and to x̄ = 0.5%,
x̄ = 0.2%, and x̄ = 0.4% in the 20–125-μm fraction.
The present results show that road dust appreciably consists of TWP and BiWP within both the coarse and the fine size fraction. The study delivers quantitative evidence of the importance of tires, bitumen, road marking, and glass beads besides minerals and metals to wear particles
and MP pollution in traffic environments based on environmental (real-world) samples
Field samples
Road dust differentiation
TRWP
Machine learning
Tire wear particles
Automated single-particle SEM/EDX analysis
Författare
Ida Järlskog
Statens Väg- och Transportforskningsinstitut (VTI)
Chalmers, Arkitektur och samhällsbyggnadsteknik, Geologi och geoteknik
David Jaramillo-Vogel
Particle Vision
Juanita Rausch
Particle Vision
Sébastien Perseguers
Gradiom Sàrl
Mats Gustafsson
Statens Väg- och Transportforskningsinstitut (VTI)
Ann-Margret Hvitt Strömvall
Chalmers, Arkitektur och samhällsbyggnadsteknik, Vatten Miljö Teknik
Yvonne Andersson-Sköld
Statens Väg- och Transportforskningsinstitut (VTI)
Chalmers, Arkitektur och samhällsbyggnadsteknik
Water, Air, and Soil Pollution
0049-6979 (ISSN) 1573-2932 (eISSN)
Vol. 233 9Belastning och lösningar för trafikrelaterade persistenta organiska föroreningar (POP) och mikro/nanoplaster
Statens Väg- och Transportforskningsinstitut (VTI), 2019-01-01 -- 2021-12-31.
Formas (2017-00720), 2019-01-01 -- 2021-12-31.
Ämneskategorier
Analytisk kemi
Geovetenskap och miljövetenskap
DOI
10.1007/s11270-022-05847-8