“Studies have found that young people who use e-cigarettes believe they’re a healthier alternative to traditional cigarettes, despite the common presence of chemicals like formaldehyde.” I find this false quote quite amusing.
This has been disproved…dig in (asking Claude)
You’re largely right. The formaldehyde scare traces mainly to one widely publicized 2015 finding, and that finding didn’t hold up under realistic conditions. Formaldehyde still shows up in vapor, but at low levels that make it a minor exposure.
The study behind the scare
A January 2015 letter in the New England Journal of Medicine reported that e-cigarette vapor could carry formaldehyde at up to 15 times the level of regular cigarettes. But at low voltage the researchers found no formaldehyde-releasing agents at all; the high numbers came only from high-voltage use. Even co-author Pankow told NBC the team wasn’t claiming e-cigarettes are more hazardous than cigarettes, though the letter left that impression. High Levels of Formaldehyde Seen in E-Cigarette Vapor +2
Why it was challenged
Critics said the researchers overheated the device into a “dry puff,” an acrid hit so unpleasant that vapers won’t keep inhaling it, which makes the test conditions irrelevant to real-world health. Researchers and advocates asked NEJM to retract the letter, and its editors declined. So the letter was rebutted, but never formally withdrawn. retractionwatchretractionwatch
The replication
In 2018, Farsalinos and colleagues re-ran the experiment. They measured formaldehyde more than 10 times lower than the original study reported, and a newer-generation atomizer produced no dry puffs and minimal aldehydes even at high power. In that work, vapers first noticed the dry-puff taste at around 100 micrograms per 10 puffs. At normal power the level was about 20 micrograms, roughly two-thirds that of cigarettes. faorstreet
Evidence from people, not machines
A clinical study spiked e-liquid with isotope-labeled ingredients to trace exposure. Labeled formaldehyde did turn up in the aerosol and in vapers’ urine, which confirms some vaping-specific exposure. But compared with total exposure, vaping was a minor source. Separately, a UCL researcher whose Cancer Research UK-funded study looked at real users reported reductions of up to 95% in some harmful biomarkers for e-cigarette users compared with smokers. tumthepathologist
Caveats on these sources
Farsalinos is a prominent vaping-harm-reduction advocate, and the isotope study was co-authored by Altria scientists. Independent work points the same way, but the debate has interested parties on both sides. Older or overheated devices can still produce more formaldehyde.
Bottom line for the quiz statement: The part about young people seeing e-cigs as healthier is accurate. The phrase “common presence of chemicals like formaldehyde” leans on a finding that was effectively debunked for realistic use. Formaldehyde is detectable, but typically at levels well below cigarette smoke.
Next: what other things we partake in create formaldehyde?
Quite a lot, and the biggest source is your own body. Formaldehyde is a normal byproduct of metabolism, so everyone has a small, steady amount circulating in their blood (around 2 to 3 mg per liter is the commonly cited figure). Your body also breaks it down quickly.
Food and drink
- Fruits and vegetables: pears, apples, grapes, shiitake mushrooms (especially dried), cauliflower, kohlrabi, and others contain it naturally.
- Fish and seafood: cod, haddock, and other whitefish build it up after death as a compound in their flesh breaks down, so frozen and dried fish can have notable amounts.
- Coffee and smoked foods (bacon, smoked fish, jerky).
- Methanol sources: your body converts methanol to formaldehyde. Fruit juices, wine, fruit brandies, and the sweetener aspartame all supply some methanol. Juice delivers more than diet soda.
Around the house
- Pressed-wood products: particleboard, MDF, and plywood in cabinets, furniture, and flooring. This is one of the main indoor sources, especially when new.
- Gas stoves, fireplaces, and wood stoves.
- Candles, incense, and cigarette smoke.
- Some air fresheners and cleaning products, partly because their scent chemicals react with ozone in the air to form it.
- Permanent-press and wrinkle-free fabrics, like dress shirts and sheets.
- Some paints, glues, and lacquers.
Personal care
- Some hair-smoothing treatments (keratin and “Brazilian blowout” types) release a lot of it when heated.
- Some nail polishes and hardeners.
- Preservatives in some shampoos, lotions, and cosmetics release it slowly in small amounts.
Outdoors
- Vehicle exhaust, plus smog chemistry that forms it in the air.
This is why ordinary indoor air has measurable formaldehyde, and why the earlier figure of a vaper’s daily intake can be compared to just breathing at home. What matters is dose and route. Inhaling it regularly at high concentrations is the main concern, mostly for nasal and throat cancers in heavily exposed workers. The trace amounts in a pear or a cup of coffee aren’t considered a meaningful risk.
Bottom line, E-cigarettes cause way less damage to the body then combusting tobacco. Adult Vapers still have way to tobacco harm reduction. Kids should not be able to obtain E-cigarettes. They are NOT ex-smokers. Period.
I wish these articles would include the positive use of E-cigarettes by consenting adults and not just children.