First-of-its-kind research shows dangers of secondhand cannabis smoke: Toxic air pollutants from secondhand cannabis bong smoke are four times worse than that from cigarettes.

berkeley.edu ^ | April 1, 2022 | Elise Proulx

[grundle]

Although 27% of young adults believe secondhand cannabis smoke (SHCS) exposure is safe, cannabis smoke has several hundred toxic chemicals, carcinogens, and fine particulate matter, many at higher concentrations than tobacco smoke.

Despite the known dangers of secondhand tobacco smoke, there has been a lack of research focused on the risk of SHCS from social cannabis smoking.

However, a new paper published March 30, 2022, in JAMA Network Open by authors Patton Khuu Nguyen, MPH, and Berkeley Public Health Professor of Environmental Health Sciences S. Katharine Hammond, is the first to quantify SHCS levels from social cannabis smoking using a bong in the home. The research reveals concentrations greatly exceeded those in homes with tobacco cigarette or hookah smoking and decayed very slowly, which suggests that, contrary to popular beliefs, bong smoking is not safe for those nearby.

Nguyen, who is a graduate of Berkeley Public Health, was selected as UC Berkeley’s inaugural Smoke and Tobacco Free Fellow in 2017. This research was conducted while he was a student at Berkeley Public Health.

“SHCS in the home can expose nonsmokers to extremely high concentrations of fine particulate matter, as much as 10 times greater than the very unhealthy wildfire smoke the Bay Area experienced during the orange sky days of September 2020,” says Nguyen. “Fine particulate matter decayed so slowly that even 12 hours after cannabis smoking ceased, the daily average concentration still exceeded US EPA daily standard by six-fold. Exposure to fine particulate matter above suggested limits has been shown to cause premature death, strokes, reduced lung function, and increased mortality from lung cancer and heart disease.”

“The public should be aware of the potential concerns with secondhand cannabis smoke,” said Nguyen. “Smokers should understand how smoking indoors can impact others and potentially expose children, pregnant women, the elderly, workers, and nonsmokers. Public health policies should establish cannabis smoke-free environments similar to tobacco smoke-free environments.”

Read the full paper on JAMA Network Open: https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2790510

[FlyingEagle]

Bong smoking is not safe for those nearby.

In addition, it can cause you to lose your bong, again, so they say.

[Salman]

Best to eat it not smoke it.

[Chode]

unpossible... there are no added chemicals adulterating it like tobacco that is chemically manipulated

This is the list of 599 additives in tobacco cigarettes submitted to the United States Department of Health and Human Services in April 1994.

https://en.wikipedia.org/wiki/List_of_additives_in_cigarettes

[Skooz]

I miss MrLeroy.

[max americana]

“This research was conducted while he was a student at Berkeley Public Health.”

***

Yeah, I’m sure he never had a problem recruiting test subjects. I’m almost sure it went like: “Dude, like um, we’ve got a study about weed bro. All the weed, and we got the bongs for free like dude, bring your friends man. “

[vpintheak]

Glad to see that it everyone is a skunk ass smelling fanatic.

[who_would_fardels_bear]

And I suppose they will soon find out that third hand smoke (e.g. smelling vapors emitted by wallpaper from previous night's party) are also deadly to children.

Those who believe in no afterlife need to hang on desperately to every theoretical minute in this one.

[minnesota_bound]

Marijuana smells really bad. I had a neighbor light up at the courthouse apt I am in. It was worse then those that smoke cigarettes.

[Yollopoliuhqui]

Today cannabis...tomorrow, your Sunday BBQ

[.44 Special]

Let this be a lesson to you: always take your bong hit first hand, never secondhand. Right up there with, “Don’t Bogart that butt, my friend.”

[WMarshal]

Life, nobody gets out alive. I would rather have fun for 70 years than linger like a shrunken ghoul for 90 years.

[Pollard]

Imagine the want ad for the trial

Wanted - people to smoke marijuana from a water pipe all day

Also wanted - people to breath bong smoke all day

[Lazamataz]

Second-hand liberalism is what’s killing ME.

[Basket_of_Deplorables]

So-called “Dangers from second hand smoke,” are based on horrible science. Complete BS.

[muir_redwoods]

Advisability of cannabis use aside, smoking anything is exposing delicate tissue to very harsh chemistry. State legalization has made edibles and tinctures readily available as alternatives to smoking.

[Ken H]

As if Climate Change wasn’t bad enough, we now have this. Please save me, nanny-state!