Glass Test Chamber Model to Evaluate Pesticide Air Emissions from Treated Wood

Abstract

Emission of pesticides from treated wood can lead to contamination of the environment through several mechanisms. The main processes governing these emissions are lixiviation and evaporation. Emissions from treated wood into the surrounding air were modelled in this study with a protocol using a glass test chamber. The aims were to identify factors influencing such emis sions into indoor air (wood drying period, temperature, loading rate: treated wood surface/room volume in m².m-3) in order to predict air concentrations of the pesticides. Emission of pentachlorophenol (PCP), a well known fungi cide extensively used in the last two decades for wood preservation, was assessed. This first study was conducted on wood treated with an organic or an aqueous formulation containing respectively PCP or its sodium salt, PCPNa.

Keywords

Wood preservative Fungicide Pentachlorophenol PCP PCPNa

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References

Morgan Jww , Purslow DF : Volatile losses of wood preservatives. BWPA Annual Convention , 1973, pp 1-20.

Arsenault RD : Pentachlorophenol and contained chlorinated dibenzodioxins in the environment . AWPA D.C. Annual Meeting, Atlanta, 1976, pp 122-148.

Waren JS , Lamparski LL , Johnson RL , Goosh RM : Determination of pentachlorophenol volatilized from wood via collection on silica gel. Bull Environ Contam Toxicol 1982 ;29:719-726.

Prueger JH , Pfeiffer L. : Preliminary test of a laboratory chamber technique intended to simulate pesticide volatility in the field. J Environ Qual 1994 ;23:1089-1093.

XP ENV 1250-1 ; Methods for measuring losses of active ingredients from treated timber. Part 1: Laboratory method for obtaining samples for analysis to measure losses by evaporation to air. AFNOR, experimental standard, 1995.

Petrowitz HJ : Release of active substances of wood preservatives from chemically treated building timbers. Holz Roh Werkstoff 1986;44: 314-346.

Colombo A. , Debortoli M. , Pecchio E. , Schauenburg H. , Schlitt H. , Vissers H. : Chamber testing of organic emission from building and furnishing materials . Sci Total Environ 1990;91:237-249.

Zimmerli B. : Modellversuche zum Übergang von Schadstoffen aus Anstrichen in die Luft, Luftqualität in Innenräumen, Frankfurt, Fischer , 1982, pp 235-267.

Asakawa F. , Jitsunari F. , Takeda N. , Manabe Y. , Suan S. , Fukunaga I. : Indoor air concentration of chlordane and its seasonal variation. Bull Environ Contam Toxicol 1994;52:546-553.

10.

Horn W. , Marutzky R. : Measuring of organic wood preservatives in indoor air - sampling and 1 m3-chamber test. Proceed Indoor Air 1993;2:513-518.