Temporal variation of VOC emission from solvent and water based wood stains
Gianluigi de Gennaro
a, b, *, Annamaria Demarinis Loiotile
a, Roberta Fracchiolla
a, Jolanda Palmisani
a,
Maria Rosaria Saracino
a, Maria Tutino
ba Dipartimento di Chimica, Universita degli Studi di Bari Aldo Moro, Via Orabona 4, 70125 Bari, Italy
b ARPA Puglia, Agenzia Regionale per la Prevenzione e Protezione dell'Ambiente, Corso Trieste 27, 70126 Bari, Italy
Atmospheric Environment 115 (2015) 53e61
Solvent- and water-based wood stains were monitored using a small test emission chamber in order to characterize their emission profiles in terms of Total and individual VOCs. The study of concentration etime profiles of individual VOCs enabled to identify the compounds emitted at higher concentration for each type of stain, to examine their decay curve and finally to estimate the concentration in a reference room. The solvent-based wood stain was characterized by the highest Total VOCs emission level (5.7 mg/ m3) that decreased over time more slowly than those related to water-based ones. The same finding was observed for the main detected compounds: Benzene, Toluene, Ethylbenzene, Xylenes, Styrene, alpha-Pinene and Camphene. On the other hand, the highest level of Limonene was emitted by a waterbased wood stain. However, the concentrationetime profile showed that water-based product was characterized by a remarkable reduction of the time of maximum and minimum emission: Limonene concentration reached the minimum concentration in about half the time compared to the solvent-based product. According to AgBB evaluation scheme, only one of the investigated water-based wood stains can be classified as a low-emitting product whose use may not determine any potential adverse effect on human health.
