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We performed a cross-sectional survey to determine pure-tone audiometry of 1496 petrochemical workers exposed to noise in South China from Oct. to Dece 2020, exposing them to noise in South China from Octo to Dec. 2020. Compared to participants in the lowest quartile of CNE, participants in the highest quartile of the CNE's lowest quartile showed an OR of 5. 229 for HFHL. No relationship was detected between CNE and TEXS exposure, as well as their effects on HL and HFHL, and no interaction was found between CNE and TEXS exposure and their effects on HL and HFHL. In summary, low-level TEXS exposure may also impede hearing function in the case of noise exposure, but not as speech-frequency hearing loss. Exposure to noise and TEXS would cause more serious hearing loss than ear to noise or TEXS alone.
Source link: https://europepmc.org/article/PPR/PPR546295
Thioxanthone is widely used in energy transfer photoreactions, but not so much in photoredox process. With the inexpensive petroleum industrial product p -xylene serving as a hydrogen source, we can convert TX into a photoredox catalyst with a significant oxidative capacity in the hydrogenation of carbonylated alkenes. Deuterium can also be introduced by this technique by using D 2 O as the D source.
Source link: https://europepmc.org/article/MED/36107463
The ability to degrade toluene and xylene, the mono-aromatic hydrocarbons of petroleum contamination, is found in a bacterial strain named as RD20 isolated from oil-contaminated soil and identified as Bacillus subtilis by biochemical testing and 16S rDNA sequence analysis. The bacterial strain was found to degrade toluene and xylene rapidly within 7 days of incubation periods, according to FTIR results, which revealed characteristic peaks. By GC-MS, benzeneacetic acid, acetic acid, 2,3-benzene, 1,3-benzenediol, pentane, tane, propiolic acid, cyclopentane, propiolic acid, cyclopentane, propiolic acid, hexane, phenolic acid, acetic acid, pentane, propiolic acid, propiol.
Source link: https://europepmc.org/article/PPR/PPR535592
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