Anaerobic degradation of naphtalene and 2-methylnaphthalene
by strains of marine sulfate-reducing bacteria.
Category Main components Aromatic hydrocarbons Ethylbenzene, 1,3-dimethyl benzene, 1-methylene lH-indene, butylated hydroxy toluene, 1-methylnaphthalene, 2-methylnaphthalene
Alkanes Undecane, dodecane, tridecane, tetradecane, pentadecane, hexadecane, 2,6,10-trimethyl dodecyl, 4-(prop-2 loxypropangl)octane, 2,6-dimethyl decane Alkenes 2-Propenylidene cyclobutene, cedrene, Seychelles alkene Aldehydes and ketones Hexanal, nonanal, benzaldehyde, acetophenone, undecanal Esters Butyl butyrate, 3-methyl heptanol acetate, 2 acrylic acid 2 ethylhexyl ester, oxalic acid acrylate Others TV-butyl ether
Two specific alkylated PAHs (Figure 1), 2-methylnaphthalene
and 1-methylphenanthrene, were found at [greater than or equal to] MDL.
We tested for naphthalene, 2-methylnaphthalene
, 1-methylnaphthalene, anenaphthylene, acenaphthene, flourene, anthracene, phenanthrene, fluoranthene, pyrene, chysene, benz(a)nthracence, benzo(a)pyrene, benzo(b)flouranthene, benzo(k)fluoranthene, indeno(l,2,3-cd)pyrene, dibenz(a,h)anthracene, benzo(ghi)perylene.
Henry Waxman, D-CA, said that the substance was likely 2-methylnaphthalene
and that the company destroyed tainted packaging before announcing the recall.
Content of polycyclic aromatic hydrocarbons (PAH), in ppm, in the oil obtained at pyrolysis of oil shale in fluidised-bed reactor under nitrogen and nitrogen/steam atmosphere Compounds Pyrolysis atmosphere Nitrogen Nitrogen/steam Naphthalene 400 1200 2-Methylnaphthalene
1510 3500 1-Methylnaphthalene 1200 3000 Biphenyl 180 440 Ethylnaphthalene 660 1500 2,6 or 2,7 Dimethylnaphthalene 420 700 1,6 or 1,3 Dimethylnaphthalene 1200 2000 2,3 or 1,4 Dimethylnaphthalene 500 800 Acenaphthalene 800 1350 Methylbiphenyl 1100 1200 Acenaphthene 40 90 Trimethylnaphthalene 250 710 Fluorene 400 870 1-Methylfluorene 15 70 Phenanthrene 500 500 Anthracene 100 150 1-Methylphenanthrene 180 200 Fluoranthene 110 100 Pyrene 110 200 1-Methylpyrene 20 50 Chrysene 110 100
Mass transfer and bioremediation of naphthalene, 2-methylnaphthalene
and 1,5-dimethylnaphthalene have been studied in a rotating bioreactor modified with the addition of baffles and beads.
What is the half-life of 2-methylnaphthalene
if it has a first-order decomposition rate constant of 25.
Additionally, we have sulfidogenic consortia that re-mineralize benzene, naphthalene, 2-methylnaphthalene
, and phenanthrene as a sole carbon source.
PAHs Exposed SP MDs Site 1 Site 3 Site 4 (upstream) (effluent pond) (effluent st ream) rep 1 Naphthalene 108 35 22 2-Methylnaphthalene
66 0 9.
Toxicological Profile for Naphthalene, 1-Methylnaphthalene, and 2-Methylnaphthalene
The airborne concentrations of compounds commonly present in creosote (indene, naphthalene, 2-methylnaphthalene
, 1-methylnaphthalene, biphenyl, acenaphthene, dibenzofuran, and fluorine) were determined for all air samples tested.