Experimental determination of benzene uptake rate in Tenax TA diffusive samplers


Autoria(s): Andrietta, Luci Carla Gheleri; Tomaz, Edson; Tresmondi, Ana Claudia Camargo de Lima; Cremasco, Marco Aurélio
Contribuinte(s)

Universidade Estadual de Campinas

Data(s)

01/01/2010

03/12/2015

03/12/2015

Resumo

This paper proposes a methodology to predict benzene uptake rate in ambient air, using passive samplers with Tenax TA. Variations in the uptake rate were found to occur as a function of the sampling time; and were greater at the beginning of sampling. An empirical model was obtained and values for uptake rate agree with literature. Concentration prediction errors can be minimized by using sampling times of 4 to 14 days, thus avoiding the influence of excessive uptake rates in the initial days and the influence of back diffusion at the end of the sampling period.

1034

1038

Identificador

Química Nova. Sociedade Brasileira de Química, v. 33, n. 5, p. 1034-1038, 2010.

0100-4042

S0100-40422010000500005

10.1590/S0100-40422010000500005

http://dx.doi.org/10.1590/S0100-40422010000500005

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000500005

http://www.repositorio.unicamp.br/jspui/handle/REPOSIP/23883

http://repositorio.unicamp.br/jspui/handle/REPOSIP/202494

Idioma(s)

en

Publicador

Sociedade Brasileira de Química

Relação

Química Nova

Direitos

aberto

Fonte

SciELO

Palavras-Chave #benzene #uptake rate #passive sampling
Tipo

Artigo de periódico