SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Pagels Joakim) ;pers:(Eriksson Axel)"

Sökning: WFRF:(Pagels Joakim) > Eriksson Axel

  • Resultat 1-10 av 98
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Andersen, Christina, et al. (författare)
  • Inhalation and dermal uptake of particle and gas phase phthalates - A human chamber exposure study
  • 2018
  • Ingår i: 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018. - 9781713826514
  • Konferensbidrag (refereegranskat)abstract
    • We have exposed sixteen test subjects to particle and gas phase phthalates in the controlled chamber exposure study. Deuterium labelled phthalates were used to generate particle D4-DEHP (di(2-ethylhexyl) phthalate) and gas phase D4-DEP (diethyl phthalate) for exposures scenarios allowed studying the dermal only and combined inhalational and dermal uptake. Metabolites were measured in urine samples before and after three hours of exposure. The inhalation was the dominant route of uptake for both DEHP and DEP in this study design and exposure settings. Larger uptake of DEP compared to DEHP both via inhalation and dermal uptake was observed. Dermal uptake of DEHP was not observed in this study. Inhalational urinary excretion factors of the metabolites were found to be 0.73 for DEHP and 0.53 for DEP. This study also highlights the importance of taking into consideration the deposited dose of inhaled particles in studies of uptake of particles.
  •  
2.
  • Andersen, Christina, et al. (författare)
  • Inhalation and Dermal Uptake of Particle and Gas-phase Phthalates - A Human Exposure Study
  • 2018
  • Ingår i: Environmental Science & Technology. - : American Chemical Society (ACS). - 1520-5851 .- 0013-936X. ; 52:21, s. 12792-12800
  • Tidskriftsartikel (refereegranskat)abstract
    • Phthalates are ubiquitous in indoor environments, which raises concern about their endocrine disrupting properties. However, studies of human uptake from airborne exposure are limited. We studied the inhalation uptake and dermal uptake by air-to-skin transfer with clean clothing as a barrier of two deuterium-labelled airborne phthalates: particle-phase D4-DEHP (di-(2-ethylhexyl)phthalate) and gas-phase D4-DEP (diethyl phthalate). Sixteen participants, wearing trousers and long-sleeved shirts, were under controlled conditions exposed to airborne phthalates in four exposure scenarios: dermal uptake alone, and combined inhalation+dermal uptake of both phthalates. The results showed an average uptake of D4-DEHP by inhalation of 0.0014±0.00088 (µg kg-1 bw)/(µg m-3)/h. No dermal uptake of D4-DEHP was observed during the 3 hour exposure with clean clothing. The deposited dose of D4-DEHP accounted for 26% of the total inhaled D4-DEHP mass. For D4-DEP, the average uptake by inhalation+dermal was 0.0067±0.0045 and 0.00073±0.00051 (µg kg-1 bw)/(µg m-3)/h for dermal uptake. Urinary excretion factors of metabolites after inhalation were estimated to 0.69 for D4-DEHP and 0.50 for D4-DEP. Under the described settings, the main uptake of both phthalates was through inhalation. The results demonstrate the differences in uptake of gas and particles, and highlights the importance of considering the deposited dose in particle uptake studies.
  •  
3.
  •  
4.
  •  
5.
  •  
6.
  •  
7.
  • Eriksson, Axel Christian, et al. (författare)
  • Influence of airborne particles' chemical composition on SVOC uptake from PVC flooring - time resolved analysis with aerosol mass spectrometry
  • 2020
  • Ingår i: Environmental Science & Technology. - : American Chemical Society (ACS). - 1520-5851 .- 0013-936X. ; , s. 85-91
  • Tidskriftsartikel (refereegranskat)abstract
    • We sampled ammonium sulfate particles and indoor particles of outdoor origin through a small chamber covered with polyvinyl chloride (PVC) flooring. We measured the uptake of semi-volatile organic compounds (SVOC) by the airborne particles in real time. The particles acquired SVOC mass fractions up to 10%. The phthalate ester DEHP (di(2-ethylhexyl)phthalate), a known endocrine disruptor, contributed by approximately half of the sorbed SVOC mass. The indoor particles acquired higher DEHP fraction than laboratory generated ammonium sulfate aerosol. We attribute this increased uptake to absorption by organic matter present in the indoor particles. Using a thermodenuder to remove volatile components, predominantly organics, reduced SVOC uptake. Positive matrix factorization applied to the organic mass spectra suggests that hydrocarbon-like organic aerosol (typically fresh traffic exhaust) sorbs DEHP more efficiently than aged organic aerosol. SVOC uptake is one of the processes that modifies outdoor pollution particles after they penetrate buildings, where the majority of exposure occurs. Particles from indoor sources, typically dominated by organic matter, will undergo such processes as well. Aerosol mass spectrometry improves the time resolution of experimental investigations into these processes, and enables experiments with lower, relevant particle concentrations. Additionally, particle size resolved results are readily obtained.
  •  
8.
  •  
9.
  • Eriksson, Axel C., et al. (författare)
  • The role of organic fraction of aerosol particles in uptake of indoor SVOC investigated with real time aerosol mass spectrometry
  • 2018
  • Ingår i: 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018. - 9781713826514
  • Konferensbidrag (refereegranskat)abstract
    • We investigate the uptake of the Di(2-ethylhexyl) phthalate (DEHP) by laboratory generated and ambient aerosol particles passing through a 1.2 liter chamber covered with vinyl flooring on its internal surfaces. We found approximately five times more efficient DEHP uptake on a mass basis by organic particles (ambient particles) compared to laboratory generated salt particles. The increased uptake is likely due to increased adsorption by pre-existing organic aerosol, which is abundant in the ambient aerosol particles. This implies that compounds with adverse health outcomes are added to particles in indoor air after infiltration into buildings via gas-to-particle conversion of indoor generated SVOCs. We show that aerosol mass spectrometry is a suitable tool for highly time-resolved investigations of this process.
  •  
10.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-10 av 98
Typ av publikation
konferensbidrag (68)
tidskriftsartikel (28)
rapport (2)
Typ av innehåll
refereegranskat (78)
övrigt vetenskapligt/konstnärligt (20)
Författare/redaktör
Pagels, Joakim (98)
Swietlicki, Erik (49)
Nordin, Erik (48)
Nilsson, Patrik (43)
Svenningsson, Birgit ... (39)
visa fler...
Rissler, Jenny (33)
Wierzbicka, Aneta (19)
Boman, Christoffer (17)
Roldin, Pontus (16)
Nyström, Robin (15)
Wittbom, Cerina (15)
Bohgard, Mats (14)
Malmborg, Vilhelm (14)
Martinsson, Johan (12)
Gudmundsson, Anders (12)
Messing, Maria (12)
Löndahl, Jakob (10)
Isaxon, Christina (10)
Andersen, Christina (10)
Eriksson, Axel C. (10)
Deppert, Knut (9)
Hedmer, Maria (8)
Lindgren, Robert (8)
Gren, Louise (8)
Ahlberg, Erik (7)
Tinnerberg, Håkan (7)
Carlsson, Jonatan (7)
Tunér, Martin (6)
Bengtsson, Per-Erik (6)
Falk, John (6)
Hallquist, Mattias (6)
Omelekhina, Yuliya (6)
Shamun, Sam (6)
Krais, Annette M (5)
Kulmala, Markku (5)
Sjögren, Staffan (5)
Pettersson, Esbjörn (5)
Korhonen, Kimmo (5)
Malmborg, Vilhelm B. (5)
Kulmala, M (4)
Nielsen, Jörn (4)
Kajos, Maija (4)
Virtanen, Annele (4)
Boman, C. (4)
Andersson, Öivind (4)
Loft, Steffen (4)
Clausen, Per Axel (4)
Nyström, R. (4)
Török, Sandra (4)
visa färre...
Lärosäte
Lunds universitet (93)
Umeå universitet (6)
Stockholms universitet (4)
Luleå tekniska universitet (3)
Göteborgs universitet (1)
Karolinska Institutet (1)
Språk
Engelska (96)
Svenska (2)
Forskningsämne (UKÄ/SCB)
Teknik (66)
Naturvetenskap (45)
Medicin och hälsovetenskap (14)

År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy