Sensory and chemical evaluation of odorous emissions from building products with and without linseed oil

Knudsen, Henrik Nellemose; Clausen, Per Axel; Wilkins, C.K.; Wolkoff, Peder

doi:10.1016/j.buildenv.2006.05.009

Cited by 40 publications

(25 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Attempts have been made to correlate sensory assessments and chemical evaluations using gas chromatographic (GC) methods (Knudsen et al, 1999) and using GC-O/MS with olfactometry (Clausen et al, 2008;Knudsen et al, 2007). Although detailed and accurate, the traditional methods for the trace analysis of VOC chemical data require extensive preparation time, and long measurement and analysis time (>3 h) even for one sample.…”

Section: Introductionmentioning

confidence: 99%

Determination of material emission signatures by PTR-MS and their correlations with odor assessments by human subjects

et al. 2010

View full text Add to dashboard Cite

The study shows that unique emission patterns may exist for different types of building materials. These patterns, or signatures, can be established by using PTR-MS, an online monitoring device. The sum of selected major individual VOC odor indices determined by PTR-MS correlates well with the acceptability of air quality assessed by human subjects, and hence provides a feasible approach to assessing perceived indoor air quality. This online assessment will open a new gate in understanding the role of VOC emissions from building materials on perceived air quality, forming a good foundation to develop real-time or near real-time methods for standard material emission testing and labeling, quality control of emissions from materials, and assessing the acceptability of air quality in buildings.

show abstract

Section: Introductionmentioning

confidence: 99%

Determination of material emission signatures by PTR-MS and their correlations with odor assessments by human subjects

et al. 2010

View full text Add to dashboard Cite

show abstract

“…More than two hundred volatile organic compounds (VOCs) have been identified in the indoor environment [5][6][7]. Over the past decade, these VOCs have been associated with adverse health effects, such as sensory irritation, odor and a more complex set of symptoms referred to as sick building syndrome (SBS).…”

Section: Introductionmentioning

confidence: 99%

Formaldehyde and TVOC emission behavior of laminate flooring by structure of laminate flooring and heating condition

Kim

2011

Journal of Hazardous Materials

View full text Add to dashboard Cite

“…Linseed oil contains linoleic acid, an omega-6 fatty acid with two double bonds. Oxidation byproduct emissions from linseed oil, similar oils, and products containing or coated in these oils have been measured and also have been shown to degrade perceived air quality (Salthammer et al, 1999;Morrison and Nazaroff, 2002a;Weschler, 2006;Knudsen et al, 2007).…”

Section: Byproduct Level [Byproduct] (Ppb) the Byproduct Level At Tmentioning

confidence: 99%

“…Fatty acids are not only prominent in skin oils, but they are also common constituents in some types of consumer products. For instance, linseed oil is used in paints, linoleum, and floor oils (Morrison and Nazaroff, 2002a;Knudsen et al, 2007). Linseed oil contains linoleic acid, an omega-6 fatty acid with two double bonds.…”

Section: Byproduct Level [Byproduct] (Ppb) the Byproduct Level At Tmentioning

confidence: 99%

Exposure-Relevant Ozone Chemistry in Occupied Spaces

Coleman

2009

View full text Add to dashboard Cite

Ozone reacts with alkenes and other organic compounds that contain carboncarbon double bonds to form oxidation byproducts such as aldehydes, ketones, carboxylic acids, radicals, and secondary organic aerosol. Ozone-reactive species such as terpenes and unsaturated fatty acids are ubiquitous in the air and on surfaces in indoor environments. The most prevalent source of ozone indoors is ventilation of the space with ozone-containing ambient air, although some appliances that are used indoors also produce ozone. Reactions with surfaces are the ever-present and dominant sink of ozone and source of oxidation byproducts. Gas-phase ozone reactions must compete with the ventilation rate; they can be intermittently important ozone consumers and byproduct generators. Ozone-alkene reactions are chain-initiating because radicals are formed that 2 continue to react. The hydroxyl radical (OH) is a major secondary byproduct of ozonealkene chemistry, and it is a less-selective, faster reacting oxidizer than ozone. Thus, species that do not readily react with ozone, i.e. compounds that do not contain a carboncarbon double bond, may also be oxidized by the OH radical in ozone-initiated chemistry.In this dissertation, the chemical and physical factors that affect transformation of ozone into other airborne pollutants in occupied indoor environments are explored.Ozone-initiated reaction with, and byproduct formation from, reactive gas-phase and surface-phase species common to indoor settings were investigated in four studies.Byproduct types and formation rates were characterized in laboratory experiments.Byproduct concentrations and exposures were predicted in various indoor environments using experimental data and a model that predicts ozone transport and uptake and byproduct formation and fate.When both ozone and terpenes are present in indoor settings, terpenes can be a strong sink of ozone and source of gas-and particle-phase byproducts. I investigated secondary organic aerosol formation from the reaction of ozone with terpene-containing consumer products under conditions relevant for residential and commercial buildings.Gas-phase consumer product emissions and then ozone were introduced into a continuously ventilated 198-L chamber. At the onset of ozone addition, a nucleation event occurred, and nucleation and growth continued to occur as long as the reagents were introduced into the chamber. The particle formation and growth behavior in these experiments mimicked SOA dynamics from ozone-terpene reactions measured in actual buildings. The full particle size distribution was continuously monitored using an optical 3 particle counter and scanning mobility particle sizer. The resulting ultrafine and fine particle concentrations were in the range of 10 to >300 µg m -3 . Particle nucleation and growth dynamics under indoor conditions were characterized using the methods commonly applied to atmospheric nucleation events.Commercial passenger aircraft can encounter elevated stratospheric ozone levels at cruising altitude, and because...

show abstract

Sensory and chemical evaluation of odorous emissions from building products with and without linseed oil

Cited by 40 publications

References 23 publications

Determination of material emission signatures by PTR-MS and their correlations with odor assessments by human subjects

Determination of material emission signatures by PTR-MS and their correlations with odor assessments by human subjects

Formaldehyde and TVOC emission behavior of laminate flooring by structure of laminate flooring and heating condition

Exposure-Relevant Ozone Chemistry in Occupied Spaces

Contact Info

Product

Resources

About