Publications - CHEMATEC

The FLEC® has been validated and used in research for many years.

Below is a publication list of journal articles, abstracts, poster or oral presentations where the FLEC or CHEMATEC’s other products have been in focus.

If you have anything that can be added to the list, we encourage you to contact CHEMATEC.

2017

Pei, Jingjing; Yin, Yihui; Cao, Jianping; Sun, Yahong; Liu, Junjie; Zhang, Yinping

Time dependence of characteristic parameter for semi-volatile organic compounds (SVOCs) emitted from indoor materials Journal Article

In: Building and Environment, vol. 125, pp. 339 - 347, 2017, ISSN: 0360-1323.

Abstract | Links | BibTeX | Tags: Emission characteristic, Flame retardants, Indoor air quality, SVOC source, Vapor pressure

@article{PEI2017339,

title = {Time dependence of characteristic parameter for semi-volatile organic compounds (SVOCs) emitted from indoor materials},

author = {Jingjing Pei and Yihui Yin and Jianping Cao and Yahong Sun and Junjie Liu and Yinping Zhang},

url = {http://www.sciencedirect.com/science/article/pii/S0360132317304067},

doi = {https://doi.org/10.1016/j.buildenv.2017.08.052},

issn = {0360-1323},

year  = {2017},

date = {2017-01-01},

journal = {Building and Environment},

volume = {125},

pages = {339 - 347},

abstract = {Semi-volatile organic compounds (SVOCs) are widely used in various indoor materials and their adverse health effects have been increasingly recognized. The gas-phase SVOC concentration in equilibrium with the source material (y0), as a characteristic parameter for SVOC sources, is mostly assumed to be constant in previous studies. However, decreases in y0 with time have been observed in some studies. As a first step to reveal the mechanism behind the phenomenon, this study quantitatively investigated the variation of y0 over time under two conditions: natural exposure to outdoor ambient (Case 1), and storage in a controlled ventilated chamber (Case 2). Three phthalates (Di-iso-butyl Phthalate (DiBP), Di-n-butyl Phthalate (DnBP), and di-(2-ethylhexyl) phthalate (DEHP)) emitted from polyvinyl chloride (PVC) floorings and one flame retardant (tris(2-chloroisopropyl) phosphate, TCPP) emitted from polyurethane foam (PUF) were targeted. Experimental results indicated that, for SVOCs with higher volatility, i.e., DiBP, DnBP, and TCPP, y0 decreased 16%–49% after 60 days' exposure for Case 1; and 16%–36% for Case 2. For SVOCs with lower volatility, i.e., DEHP, no significant decrease in y0 was observed after 60 days in both cases; while if prolonging the time to about 1.5 years, a decrease of 38% was observed. Discussion about potential reasons for the decrease of y0 was presented. The results obtained here provide a further understanding about SVOC source characteristics and therefore help providing source strength for estimating indoor SVOC health exposure.},

keywords = {Emission characteristic, Flame retardants, Indoor air quality, SVOC source, Vapor pressure},

pubstate = {published},

tppubtype = {article}

}

2011

Schossler, Patrícia; Schripp, Tobias; Salthammer, Tunga; Bahadir, Müfit

Beyond phthalates: Gas phase concentrations and modeled gas/particle distribution of modern plasticizers Journal Article

In: Science of The Total Environment, vol. 409, no. 19, pp. 4031 - 4038, 2011, ISSN: 0048-9697.

Abstract | Links | BibTeX | Tags: DINCH, DINP, Gas–particle partitioning, Octanol–air partition coefficient, Plasticizers, Vapor pressure

@article{SCHOSSLER20114031,

title = {Beyond phthalates: Gas phase concentrations and modeled gas/particle distribution of modern plasticizers},

author = {Patrícia Schossler and Tobias Schripp and Tunga Salthammer and Müfit Bahadir},

url = {http://www.sciencedirect.com/science/article/pii/S0048969711006334},

doi = {https://doi.org/10.1016/j.scitotenv.2011.06.012},

issn = {0048-9697},

year  = {2011},

date = {2011-01-01},

journal = {Science of The Total Environment},

volume = {409},

number = {19},

pages = {4031 - 4038},

abstract = {The ongoing health debate about polymer plasticizers based on the esters of phthalic acid, especially di(2-ethylhexyl) phthalate (DEHP), has caused a trend towards using phthalates of lower volatility such as diisononyl phthalate (DINP) and towards other acid esters, such as adipates, terephthalates, citrates, etc. Probably the most important of these so-called “alternative” plasticizers is diisononyl cyclohexane-1,2-dicarboxylate (DINCH). In the indoor environment, the continuously growing market share of this compound since its launch in 2002 is inter alia apparent from the increasing concentration of DINCH in settled house dust. From the epidemiological point of view there is considerable interest in identifying how semi-volatile organic compounds (SVOCs) distribute in the indoor environment, especially in air, airborne particles and sedimented house dust. This, however, requires reliable experimental concentration data for the different media and good measurements or estimates of their physical and chemical properties. This paper reports on air concentrations for DINP, DINCH, diisobutyl phthalate (DIBP), diisobutyl adipate (DIBA), diisobutyl succinate (DIBS) and diisobutyl glutarate (DIBG) from emission studies in the Field and Laboratory Emission Cell (FLEC). For DINP and DINCH it took about 50days to reach the steady-state value: for four months no decay in the concentration could be observed. Moreover, vapor pressures p0 and octanol–air partitioning coefficients KOA were obtained for 37 phthalate and non-phthalate plasticizers from two different algorithms: EPI Suite and SPARC. It is shown that calculated gas/particle partition coefficients Kp and fractions can widely differ due to the uncertainty in the predicted p0 and KOA values. For most of the investigated compounds reliable experimental vapor pressures are not available. Rough estimates can be obtained from the measured emission rate of the pure compound in a microchamber as is shown for di-n-butyl phthalate (DnBP), di(2-ethylhexyl) adipate(DEHA), tri(octyl) trimellitate (TOTM) and DEHP.},

keywords = {DINCH, DINP, Gas–particle partitioning, Octanol–air partition coefficient, Plasticizers, Vapor pressure},

pubstate = {published},

tppubtype = {article}

}

The ongoing health debate about polymer plasticizers based on the esters of phthalic acid, especially di(2-ethylhexyl) phthalate (DEHP), has caused a trend towards using phthalates of lower volatility such as diisononyl phthalate (DINP) and towards other acid esters, such as adipates, terephthalates, citrates, etc. Probably the most important of these so-called “alternative” plasticizers is diisononyl cyclohexane-1,2-dicarboxylate (DINCH). In the indoor environment, the continuously growing market share of this compound since its launch in 2002 is inter alia apparent from the increasing concentration of DINCH in settled house dust. From the epidemiological point of view there is considerable interest in identifying how semi-volatile organic compounds (SVOCs) distribute in the indoor environment, especially in air, airborne particles and sedimented house dust. This, however, requires reliable experimental concentration data for the different media and good measurements or estimates of their physical and chemical properties. This paper reports on air concentrations for DINP, DINCH, diisobutyl phthalate (DIBP), diisobutyl adipate (DIBA), diisobutyl succinate (DIBS) and diisobutyl glutarate (DIBG) from emission studies in the Field and Laboratory Emission Cell (FLEC). For DINP and DINCH it took about 50days to reach the steady-state value: for four months no decay in the concentration could be observed. Moreover, vapor pressures p0 and octanol–air partitioning coefficients KOA were obtained for 37 phthalate and non-phthalate plasticizers from two different algorithms: EPI Suite and SPARC. It is shown that calculated gas/particle partition coefficients Kp and fractions can widely differ due to the uncertainty in the predicted p0 and KOA values. For most of the investigated compounds reliable experimental vapor pressures are not available. Rough estimates can be obtained from the measured emission rate of the pure compound in a microchamber as is shown for di-n-butyl phthalate (DnBP), di(2-ethylhexyl) adipate(DEHA), tri(octyl) trimellitate (TOTM) and DEHP.