CheRRIE Laboratory analysis of chemical emissions Prof Dimosthenis A Sarigiannis PhD Director of Environmental Engineering Laboratory EnvE Lab Department of Chemical Engineering Aristotle University of Thessaloniki 54124 Greece ID: 604228
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Slide1
Chemical and Radiological Risk in the Indoor Environment (CheRRIE)Laboratory analysis of chemical emissions
Prof. Dimosthenis A. Sarigiannis, PhDDirector of Environmental Engineering Laboratory (EnvE-Lab)Department of Chemical Engineering, Aristotle University of Thessaloniki - 54124, GreeceSlide2
Basic MaterialsRed clay brickCement Cement-brickAsbestosSandIron
CopperBrass AluminumSoil (for building materials production)
Materials analyzed
Artificial
Materials (A)
Tiles
(for wall and floors)
Marble
Granite
Schist
rock
Rock
material (Hard and Soft)
Timber
Limestones
Redi
stonesSlide3
FlooringsBeech parquetPVCLaminateLinoleumPolyolefinResilient
Gypsum products and plaster boardsGypsum boardSR plastering
Artificial Materials
analysed
Paints and Varnishes
Floor
wax
Floor
varnishingWall paint, solvent freeWall paint, acrylicWall paint, water basedWall paint, latex dispersion
Wood based panels
Fiberboard
Hardboard
Particleboard
Melamine finished particle board
Office/home furniture
Plastic laminate assemblySlide4
Special category: carpetsCarpet Type 1: Fibers by 100% polyamide and 100% synthetic backing (unknown composition; not Styrene-Butadiene-Rubber; SBR).Carpet Type 2: Fibers by 80% wool, 10% polyamide and 10% polypropylene and 100% synthetic backing (SBR).Carpet Type 3: Fibers by 100% wool and 100% synthetic backing (SBR).Carpet Type 4:
Fibers by 100% polyamide and 100% synthetic backing (SBR)Artificial Materials
analysedSlide5
Analysis method
A chamber of approximately 30 l was usedThe chamber was operating at 0.5 air changes per hour, at 23 0C, while maintaining the relative humidity at 45% Air from the chambers was sampled and analysed on a GC
where
E
(μ
g∙m
−2
·h
−1) is the emission rate; C (μg∙m−3) is the chamber concentration; A (m2) is the emitting surface area; Vc (m3) is the chamber volume and
n
(h‑) is the air change
rateSlide6
Benzene emissionsSlide7
Toluene emissionsSlide8
Ethylbenzene emissionsSlide9
Xylenes emissionsSlide10
Formaldehyde emissionsSlide11
Acetaldehyde emissionsSlide12
ConclusionsNatural materials such as marble, granite and metals do not emit at all industrial chemicals such as BTEX and carbonyls Significant variability among similar types of artificial materials
Solvent-based paints are strong emitters of BTEX and carbonylsWood based materials are strong emitters of acetaldehydeGypsum based materials emit strongly both BTEX and carbonylsFormaldehyde is strongly emitted by several building materials; emissions factors are almost one magnitude of order higher compared to BTEXSlide13
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