According to the federal Potency Monitoring Project, in 1985, the average THC content of commercial-grade marijuana was 2.84%, and the average for high-grade sinsemilla in 1985 was 7.17%. In 1995, the potency of commercial-grade marijuana averaged 3.73%, while the potency of sinsemilla in 1995 averaged 7.51%.
www.drugwardistortions.org/distortion11.htm
Some people claim that marijuana potency has increased dramatically. Learn about marijuana potency and whether the plant's thc levels have increased. ... Typical THC levels, which determines marijuana potency, range from 0.3 to 4 percent. However, some specially grown plants can contain THC levels as high as 15 percent.
health.howstuffworks.com/marijuana5.htm health.howstuffworks.com/marijuana5.htm
Duuude, that's good weed. Marijuana potency has hit an all-time high, scientists say, based on the concentration of the psychoactive ingredient THC. ... Lifestyle HealthMarijuana potency higher than ever: Drug's THC concentration could lead to more bad trips...
www.nydailynews.com/lifestyle/health/2009/05/14/2009-05... www.nydailynews.com/lifestyle/health/2009/05/14/2009-05-14_marijuana_potency_not_going_to_pot_drugs_thc_concentration_higher_than_ever.html
Cannabis (drug) - Wikipedia, the free encyclopedia
Cannabis - also commonly known as marijuana or marihuana , and ganja (from Sanskrit: gañjā , meaning hemp ), among many other names a[›] - refers to any number of preparations of the ...
en.wikipedia.org/wiki/Cannabis_(drug)
At the University of Mississippi's Potency Monitoring Project, where thousands of samples of seized marijuana are tested every year, project director Mahmoud ElSohly said some samples have THC levels exceeding 30 percent.
www.cnn.com/2009/HEALTH/05/14/marijuana.potency/index.h... www.cnn.com/2009/HEALTH/05/14/marijuana.potency/index.html
"The THC potency evidence is very dubious..." In the area of illegal drugs, there's a tremendous amount of disinformation and propaganda, often produced or influenced by the government in it's efforts to influence public opinion a...
http://askville.amazon.com/increases-THC-potency-Mariju...
The government report, which was based on information provided by the University of Mississippi's Potency Monitoring Project, indicates that the marijuana that was analyzed in 2007 had a THC level of 9.6 percent - the highest level since analysts began tracking this data in 1976. The previous potency peak was 8.75...
www.adolescent-substance-abuse.com/marijuana-potency.ht... www.adolescent-substance-abuse.com/marijuana-potency.html
VARIATIONS IN MARIJUANA POTENCY ... There are noticeable differences in THC concentrations between plants of the same variety. Differences are large enough so that you can tall (by smoking) that certain plants are better. This is no news to homegrowers, who often find a particular plant to be outstanding.
www.greenmanspage.com/guides/thcpotency.html www.greenmanspage.com/guides/thcpotency.html
To determine whether smoking more, compared to less, potent marijuana (MJ) cigarettes to a desired level of intoxication ("high") reduces pulmonary exposure to noxious smoke components, in 10 habitual smokers of MJ, we measured respiratory delivery and deposition of tar and delta9-tetrahydrocannabinol (THC),
www.medscape.com/medline/abstract/9408226
Human performance studies have usually relied on low-potency marijuana (4% THC) for determining THC-induced impairment. ... Human performance studies have usually relied on low-potency marijuana (4% THC) for determining THC-induced impairment. The present study was designed to assess the effects of high-potency marijuana...
www.medscape.com/medline/abstract/16572123