Martin, 2013: Production of methyl vinyl ketone and methacrolein via the hydroperoxyl pathway of isoprene oxidation.
One specific example highlighted in this article is the decreased concentrations of isoprene and the increased concentrations of its daughter species methyl vinyl ketone and methacrolein (Figs.
Isoprene oxidation products include methyl vinyl ketone, methacrolein, and hydroperoxides.
The effect on human eye blink frequency of exposure to limonene oxidation products and methacrolein
We also found traces of cancer-inducing chemicals benzene, toluene, xylene, methacrolein
, furfural and Pyridine, which is used in the manufacture of pesticides.
The exceptions are methyl vinyl ketone (MVK) and methacrolein (MACR), which are largely generated from the oxidation of isoprene, although some plant species are known to emit these gases (Jardine et al.
Dominant gas species include methanol, isoprene, acetone, monoterpenes, acetaldehyde, and the isoprene reaction products methyl vinyl ketone and methacrolein.
Gas chromatography and mass spectrometry analyses indicate the initial and major photochemical products produced during these experiments for BD are acrolein, acetaldehyde, and formaldehyde, and products for ISO are methacrolein, methyl vinyl ketone, and formaldehyde; both formed < 200 ppb of ozone.
1995), Known ISO photochemical degradation products include methacrolein, methyl vinyl ketone, formaldehyde, 3-methylfuran, acetaldehyde, carbon monoxide, [O.
Methacrolein alone causes irritation of the upper respiratory tract, painful sensation in human nasal cavities, and sensitization of the trigeminal nerve endings (Larsen and Nielsen 2000).
Addition of the effects of the residual reactants and the identified stable irritant products (formaldehyde, formic acid, acetic acid, methacrolein, and methylvinyl ketone) could explain only partially the observed sensory irritation.
The ozone reaction is reported to give methacrolein, methyl vinyl ketone, hydroxy hydroperoxides, the two isomeric monoepoxides, 3-methylfuran, propene, and many secondary oxidation products of these, depending on the reaction conditions (13-15).