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Adsorption Of Selected Volatile Organic Compounds On A Carpet, A Wall Coating, And A Gypsum Board In A Test Chamber
Author(s) -
Colombo Angelo,
Bortoli Maurizio,
Knoppel Helmut,
Pecchio Emilio,
Vissers Henk
Publication year - 1993
Publication title -
indoor air
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.387
H-Index - 99
eISSN - 1600-0668
pISSN - 0905-6947
DOI - 10.1111/j.1600-0668.1993.00009.x
Subject(s) - adsorption , vapours , gypsum , boiling point , dodecane , chemistry , coating , decane , chemical engineering , volatility (finance) , sorbent , organic chemistry , materials science , chromatography , environmental chemistry , composite material , neuroscience , financial economics , engineering , economics , biology
The adsorption of vapours of different volatility and polarity on three materials widely used indoors (carpet, gypsum board, wall coating) has been investigated in small test chambers, in order to study methodological aspects and to estimate the importance of the phenomenon for human exposure assessments. The output of the models used, with rate constants describing two different sinks, is discussed. The experiments show that: a) adsorption seems to occur to at least two different sinks with different rate constants in the same material; b) generally adsorption increases with the boiling point of the compounds, but it depends also on other physicochemical properties, such as the chemical functionality, as well as on the sorbent material: e.g. the two alkanes n‐decane and n‐dodecane show a higher k 3 /k 4 ratio on carpet than on gypsum board, whereas the opposite is observed for the two alcohols 2‐butoxyethanol and 2‐ethylhexanol