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Source: @norml
Posted By: norml@weedconnection.com
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- Sat, 02 Nov 2013 04:20:21 PST

Study: THC Detectable In Breath For Limited Periods Of Time

Baltimore, MD: The psychoactive cannabinoid THC may be present in the breath of subjects who recently inhaled marijuana, according to clinical trial data published online in the journal Clinical Chemistry.

Investigators at the National Institutes of Health in Baltimore, Maryland and the Karolinska University Hospital in Stockholm, Sweden analyzed the exhaled breath of occasional and habitual marijuana consumers shortly after subjects inhaled a standardized cannabis cigarette of 6.8 percent THC. Researchers sought to identify whether THC, its primary metabolite THC-COOH, or cannabinol (CBN), a non-psychoactive cannabinoid, were present in breath at detectable levels following smoking.

Researchers reported identifying the presence of THC in both occasional and in regular consumers for limited periods of time following subjects' inhalation of marijuana. Authors concluded: "Among chronic smokers (n = 13), all breath samples were positive for THC at 0.89 hours, 76.9 percent at 1.38 hours, and 53.8 percent at 2.38 hours, and only one sample was positive at 4.2 hours after smoking. Among occasional smokers (n = 11), 90.9 percent of breath samples were THC-positive at 0.95 hours and 63.6 percent at 1.49 hours. One occasional smoker had no detectable THC."

No samples tested positive for the presence of the carboxy THC metabolite and only one subject tested positive for the presence of CBN.

Authors concluded that breath analysis potentially offers an alternative matrix for identifying subjects who had recently inhaled cannabis. The study did not attempt to correlate the detection of THC in breath with actual behavioral impairment of any kind.

Swedish researchers had previously reported in April that breath analysis is sensitive to the presence of THC in those who have recently consumed cannabis as well as other controlled substances. That study reported that 89 percent of subjects tested positive for THC in breath. Investigators reported that the results "confirmed the potential of exhaled breath as an alternative specimen for toxicological investigations."

Full text of the study, "Cannabinoids in exhaled breath following controlled administration of smoked cannabis," appears in Clinical Chemistry.

Maine: Portland Voters To Decide Next Week On Measure To Eliminate Marijuana Possession Penalties

Portland voters will decide Tuesday on a municipal ballot measure that that seeks to eliminate penalties citywide for adults who possess small quantities of cannabis and/or marijuana paraphernalia.

Sponsors of the measure, Citizens for a Safer Portland, collected over 2,500 certified signatures from Portland voters in support of the plan. Members of the Portland City Council voted 5 to 1 in July to place the measure on the November ballot.

Passage of the measure, municipal ballot Question 1, would eliminate civil penalties for adults who possess up to 2.5 ounces of cannabis and/or cannabis paraphernalia within Portland city limits. Public consumption of the substance would remain a punishable offense.

Under present state law, the possession of 2.5 ounces of marijuana or less is classified as a civil offense punishable by a fine of up to $600.

Similar municipal initiatives have previously passed in several other cities, including Denver, Colorado and Detroit, Michigan.

Voters in Lansing, Michigan will also decide on a similar citywide measure next week.

Michigan: Lansing Voters To Decide Tuesday On Marijuana Depenalization Measure

Michigan: Lansing Voters To Decide Tuesday On Marijuana Depenalization Measure Lansing, MI: Lansing voters will decide Tuesday on a municipal initiative to amend the city charter to repeal criminal and civil penalties involving the adult possession of cannabis by adults on private property.

Initiative proponents, Coalition for a Safer Lansing, collected some 7,000 signatures from registered voters to qualify the measure for the 2013 November ballot. The proposed measure reads, "Shall the Charter of the City of Lansing, Michigan be amended such that nothing in the Code of Ordinances shall apply to the use, possession or transfer of less than 1 ounce of marijuana, on private property, by a person who has attained the age of 21 years?"

Lansing Mayor Virg Bernaro, a Democrat, has publicly stated that he is voting in favor of the measure.

Under present state law, the possession of any amount of cannabis for non-medical purposes is a criminal misdemeanor punishable by up to one year in jail and a $2,000 fine.

Last year, voters in four Michigan cities - Detroit, Flint, Grand Rapids, and Ypsilanti - all voted overwhelmingly in favor of municipal measures to depenalize marijuana offenses.

Voters in Portland, Maine will decide on a similar citywide ballot measure next week.

More information @ https://www.saferlansing.com


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