Anthropogenic volatile organic compounds (AVOC) often dominate the urban atmosphere and consist to a large degree of aromatic hydrocarbons (ArHC), such as benzene, toluene, xylenes, and trimethylbenzenes, e.g. from handling and combustion of fuels. These compounds are important precursors for the formation of secondary organic aerosol. Here we show that oxidation of aromatics with OH leads to a...

Toluene and a mixture of the isomeric xylenes are common organic solvents that have been implicated in false ethanol results produced by older models of the Intoxilyzer 5000, a breath alcohol analyzer that uses infrared spectrophotometry to quantitate ethanol in breath samples. A straightforward method is described which predicts this type of interference in analyses conducted on such models. T...

Degradation of the BTEX (benzene, toluene, ethylbenzene, and o-, m-, and p-xylenes) group of organopollutants by the white-rot fungus Phanerochaete chrysosporium was studied. Our results show that the organism efficiently degrades all the BTEX components when these compounds are added either individually or as a composite mixture. Degradation was favored under nonligninolytic culture conditions...

During two field campaigns in 1993 and 1994, measurements of aromatic compounds [benzene, toluene, ethylbenzene, m-/p-/o-xylenes (BTEX)] were carried out at urban and rural sites in the greater Munich area. These field campaigns represent a unique study using quasi-continuous gas chromatography/flame ionization detection methods concurrently at various sites. The impact of Munich’s urban plume ...

We have developed a simple, whole-cell bioassay for the detection of bioavailable benzene, toluene, ethyl benzene, and xylenes (BTEX) and similar compounds. A genetically engineered E. coli strain expressing toluene dioxygenase (TDO) and toluene dihydrodiol dehydrogenase (TodD) was constructed, enabling the conversion of BTEX into their respective catechols, which were quickly converted into co...

The purpose of this work is to study the process neutralization vapors a mixed solvent brand 650 by adsorption‑catalytic method. essence method consists in concentration components on sorbent, thermal desorption followed periodic flameless catalytic oxidation accumulated organic substances carbon dioxide and water. Synthetic zeolite NaX was used as porous material based foam ceramics Al 2 O 3 /...