I suggest reading the whole article.
https://www.nytimes.com/2021/10/25/opinion/leaf-blowers-california-emissions.html
By Margaret Renkl
Oct. 25, 2021
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Gasoline-powered leaf blowers are invaders, the most maddening of all the maddening, environment-destroying tools of the American lawn-care industry.
Nearly everything about how Americans “care” for their lawns is deadly. Pesticides prevent wildflower seeds from germinating and poison the insects that feed songbirds and other wildlife. Lawn mower blades, set too low, chop into bits the snakes and turtles and baby rabbits that can’t get away in time. Mulch, piled too deep, smothers ground-nesting bees, and often the very plants that mulch is supposed to protect, as well.
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This particular environmental catastrophe is not news. A 2011 study by Edmunds found that a two-stroke gasoline-powered leaf blower spewed out more pollution than a 6,200-pound Ford F-150 SVT Raptor pickup truck. Jason Kavanagh, the engineering editor at Edmunds at the time, noted that “hydrocarbon emissions from a half-hour of yard work with the two-stroke leaf blower are about the same as a 3,900-mile drive from Texas to Alaska in a Raptor.”
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“Some produce more than 100 decibels of low-frequency, wall-penetrating sound — or as much noise as a plane taking off — at levels that can cause tinnitus and hearing loss with long exposure,” Monica Cardoza wrote for Audubon Magazine this year.
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The risks come not only from the noise and the chemical emissions that two-stroke engines produce, but also from the dust they stir up. “That dust can contain pollen, mold, animal feces, heavy metals and chemicals from herbicides and pesticides,” notes Sara Peach of Yale Climate Connections. All this adds up to increased risk of lung cancer, asthma, cardiovascular disease, premature birth and other life-threatening conditions.
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But the trouble with leaf blowers isn’t only their pollution-spewing health consequences. It’s also the damage they do to biodiversity. Fallen leaves provide protection for overwintering insects and the egg sacs of others. Leaf blowers, whether electric or gasoline-powered, dislodge the leaf litter that is so essential to insect life — the insect life that in turn is so essential to birds and other wildlife.
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