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THURSDAY, March 31, 2022 (HealthDay Information)
Bongs have been touted as a protected approach to defend nonsmokers from secondhand marijuana smoke. However it could possibly expose them to extraordinarily excessive concentrations of wonderful particulate matter — 5 to 10 instances better than ranges from wildfires within the San Francisco Bay Space in September 2020, based on senior researcher Katharine Hammond. She is a professor of environmental well being sciences on the College of California, Berkeley.
Even 12 hours after pot smoking stopped, concentrations of wonderful particulate matter remained excessive and unhealthy for delicate folks, the study found. “Secondhand hashish smoke drastically exceeds air air pollution requirements,” Hammond warned.
A bong is a water pipe that filters and cools pot smoke to offer a smoother, extra intoxicating impact.
“There is no such thing as a risk-free stage of publicity to secondhand tobacco smoke, and secondhand cannabis smoke incorporates related toxins and is presumably not protected,” Hammond stated.
“The adverse health effects of fine particulate matter are effectively established,” Hammond stated, including that publicity has been proven to trigger early loss of life, diminished lung perform, and elevated threat of loss of life from lung cancer and heart disease.
Matthew Springer, a professor of drugs within the division of cardiology on the College of California, San Francisco, stated it is clear that secondhand smoke from each tobacco and hashish can attain unhealthy ranges for bystanders. And, he added, utilizing a bong generates plenty of smoke.
“The smoke that passes via the water remains to be smoke that will get inhaled after which exhaled, and any smoke generated by the fabric itself because it’s smoldering goes so as to add to the general secondhand smoke within the room,” Springer stated. “That would appear to go with out saying, however as with all gadget perceived by the general public as safer, it is helpful to see actual numbers indicating that, certainly, use of bongs doesn’t forestall bystanders from being uncovered to vital quantities of secondhand smoke.”
Whether or not or not bigger particles within the water are eliminated, it is the wonderful particles that make it far into the lungs and injury them, in addition to the heart and blood vessels, Springer famous.
“Whether or not or not bong use leads to extra secondhand smoke than different merchandise, clearly it could possibly nonetheless end in excessive ranges, and it was notable that the stuff endured within the room for hours,” he added.
For the examine, Hammond and her UC Berkeley colleague Patton Khuu Nguyen measured ranges of wonderful particulate matter — known as PM2.5 — earlier than, throughout and after eight pot smoking periods in a single front room. An aerosol monitor measured PM2.5 concentrations the place a nonsmoker would possibly sit.
Throughout six periods, bong smoking elevated PM2.5 ranges between 100-fold and 1000-fold. They rose greater than 20-fold in two different periods, the investigators discovered.
The examine authors additionally discovered that hashish bong smoking generated PM2.5 ranges 4 instances increased than that produced by cigarettes or smoking tobacco in a waterpipe.
As such, Hammond stated efforts to scale back publicity to secondhand marijuana smoke are wanted. Such measures might embody having marijuana smoke-free environments like these for tobacco and never smoking indoors.
“Bong smoking results in extraordinarily excessive and really unhealthy secondhand smoke particle concentrations above [U.S. Environmental Protection Agency] requirements that persist even hours after smoking ceases,” she stated. “Our report and former research ought to information efforts to coach the general public on the potential antagonistic well being results of secondhand hashish smoke on nonsmokers.”
Cynthia Hallett, president and CEO of People for Nonsmokers’ Rights, reviewed the examine findings.
“There are plenty of similarities between secondhand tobacco smoke and secondhand hashish smoke,” she stated. “Each have carcinogens and toxins and have the potential to trigger respiratory issues, whether or not that is asthma or lung cancer.”
Hallett is not in opposition to legalization of marijuana or smoking it, however she thinks that bystanders needs to be protected against its secondhand smoke. She sees a parallel between the way in which tobacco firms fought smoke-free legal guidelines and the way hashish is being commercialized utilizing most of the identical ways to thwart indoor smoking restrictions.
“The problem is that we’re getting pushback from marijuana proponents and hashish trade proponents in making an attempt to advocate for indoor smoking areas,” Hallett stated.
Having no-pot-smoking legal guidelines, like no-tobacco-smoking legal guidelines, is crucial to guard folks from the harms of secondhand marijuana smoke, she stated.
“We need to ensure that nonsmokers aren’t unfairly uncovered to dangerous merchandise,” Hallett stated. “We additionally do not need to construct one other era hooked on tobacco or hashish merchandise.”
The examine was printed on-line March 30 in JAMA Network Open.
For extra on secondhand marijuana smoke, head to the American Nonsmokers’ Rights Foundation.
SOURCES: S. Katharine Hammond, PhD, professor, environmental well being sciences, College of California, Berkeley; Matthew Springer, PhD, professor, medication, College of California, San Francisco; Cynthia Hallett, MPH, president and CEO, People for Nonsmokers’ Rights, Berkeley, Calif.; JAMA Community Open, March 30, 2022, on-line
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