Produção Nacional
Revisado por pares
Experimental determination of benzene uptake rate in Tenax TA diffusive samplers
2010; Brazilian Chemical Society; Volume: 33; Issue: 5 Linguagem: Inglês
10.1590/s0100-40422010000500005
ISSN1678-7064
AutoresLuci Carla Gheleri Andrietta, Edson Tomaz, Ana Claudia Camargo de Lima Tresmondi, Marco Aurélio Cremasco,
Tópico(s)Odor and Emission Control Technologies
ResumoThis 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.
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