Methyl iodide, a fumigant under fire

Methyl bromide under fire.

Methyl Bromide under Fire Methyl bromide is one of the most widely used pesticides in the world, a broad-spectrum fumigant effective in controlling insects, nematodes, fungi, and bacteria. Methyl bromide is also highly toxic to humans. In December 1993, the EPA listed methyl bromide as a stratospheric ozone-depleting substance subject to phase-out. The final rule, issued 1 January 1994, freezes...

Methyl iodide poisoning.

Global budgets of oceanic and atmospheric methyl iodide : development of methyl iodide as a tracer for marine convectionin atmospheric models

Methyl iodide (CH 3 I) is mainly emitted to the atmosphere from the oceans, and photolyzes with a lifetime of 4 days in the tropics. It is of interest in the atmosphere as a tracer of marine convection and a source of iodine radicals. We present a global model simulation of oceanic and atmospheric CH 3 I using a box model of the oceanic mixed layer coupled to a global three-dimensional model of...

(E)-1-Methyl-2-styrylpyridinium iodide

In the title compound, C(14)H(14)N(+)·I(-), the cation exists in an E configuration with respect to the ethenyl bond and is slightly twisted, the inter-planar angle between the pyridinium and phenyl rings of the cation being 4.8 (2)°. In the crystal packing, the cations are stacked in an anti-parallel fashion along the a axis by a π-π inter-action involving both pyridinium and phenyl rings; the...

Methyl iodide production from marine phytoplankton cultures

Unialgal cultures of 15 species of marine phytoplankton were examined for the production of methyl iodide (CHJ). CH,I production was quantified during log and stationary phases of phytoplankton growth in f/2 medium and compared to CHJ levels in control vessels. Significant increases in CHJ production were seen in five cultures. Phytoplankton CHJ production varied from a low of lop4 amol CHJ cel...