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We picked up, tracked, and analyzed 130k pieces of litter in SF

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Re: We picked up, tracked, and analyzed 130k pieces of litter in SF

#61

Earlier quoted context omitted.

Is it tho? Coffee cups are made of paper. Cigarette butts are a plastic foam embedded with a multitude of carcinogens.

Wrong. Cigarette filters are made from cellulose.

they are made from cellulose acetate and take 15-20 years to break down. The same stuff they used to make tape drives for the IBM 701

Re: We picked up, tracked, and analyzed 130k pieces of litter in SF

#62
post #55
post #43

Earlier quoted context omitted.

There is a school of thought that less trash cans reduces litter. I am a little skeptical of the idea but I see the point.

I think it’s mostly culture. Burning man has zero trash cans and pretty damn close to zero litter. Living in SF is like living inside a garbage dump combined with a sewer. It’s insane.

Maybe not...

https://www.sfgate.com/travel/burningman/amp/Burning-Man-gar...

Re: We picked up, tracked, and analyzed 130k pieces of litter in SF

#63
post #38

Earlier quoted context omitted.

One data point: litter bins (public trash cans) were all removed from Central London decades ago because terrorists began planting bombs in them. Afaik they have been restored in recent years but the cultural memory of having to pack your trash home remains.

This is the same reason there are so few in Tokyo: https://www.citylab.com/life/2019/05/trash-cans-japan-garbag...

I'd heard this for ages, but Tokyo in my experience had a lot of places to leave your trash. Not the giant trash cans I see stateside, but small bins next to many of the vending machines which are everywhere. The streets were pretty clear of litter though. The lack of litter was still impressive.

Re: We picked up, tracked, and analyzed 130k pieces of litter in SF

#64
post #41

Earlier quoted context omitted.

Most of the people I see litter in SF already have zero social credit and don't look like they're trying to earn any.

I'm imagining a future where you can inject drugs using govt provided syringes while defecating in the street no problem, but if you drop a cigarette butt we'll track you down and arrest you for littering.

Future? This is current SF! :)

Re: We picked up, tracked, and analyzed 130k pieces of litter in SF

#65
post #7

Earlier quoted context omitted.

I have a dog, and when we're walking around I always notice all the cigarette butts on the ground (because my dog tries to eat everything off the ground so I have to watch). It doesn't surprise me that so much litter is just tobacco products. (Also I live in NYC these days, but I used to live in SF).

And nowadays in NYC I’m seeing discarded plastic vaping things, which is even worse, imo.

I've noticed this too. If you have a dog, you also learn very quickly just how many discarded chicken bones exist throughout the city (hint: it's more than you want it to be).

Re: We picked up, tracked, and analyzed 130k pieces of litter in SF

#66

Earlier quoted context omitted.

Is it tho? Coffee cups are made of paper. Cigarette butts are a plastic foam embedded with a multitude of carcinogens.

Wrong. Cigarette filters are made from cellulose.

Cigarette filters are made from cellulose acetate, which you could consider a plastic although it's not a petrochemical (it's the same plastic commonly used in eyeglass frames).

However, a used cigarette butt will additionally contain adhesives and any flavorings as well as some leftover compounds deposited by the smoke. The wikipedia article goes into higher detail on this: https://en.wikipedia.org/wiki/Cigarette_filter

Cellulose acetate is only sort-of biodegradable like Cellulose. Here is a study looking at the topic: https://link.springer.com/article/10.1007%2Fs10924-010-0258-...

> Cellulose is readily biodegraded by organisms that utilize cellulase enzymes, but due to the additional acetyl groups cellulose acetate requires the presence of esterases for the first step in biodegradation. Once partial deacetylation has been accomplished either by enzymes, or by partial chemical hydrolysis, the polymer’s cellulose backbone is readily biodegraded.

I.e. if you throw butts in an ordinary compost pile, they might not get anywhere for a while.

Re: We picked up, tracked, and analyzed 130k pieces of litter in SF

#69

Cigarette butts seem to be the most common by count , but what about weight and volume? On the streets of NYC, I don't really notice the cigarettes, but I do notice the enormous amount of plastic bags (much of it stuck in trees), plastic or paper cups, straws, takeout containers. And gum. If you ever look at a sidewalk and see dark splotches [1], that's discarded chewing gum. It's absolutely everywhere. Not as invasi…

> NYC's sanitation workers are notoriously careless about handling the trash, and my pet theory is that a sizable portion of street litter actually originates in the sanitation workers spilling trash on pickup day.

DSNY, aka Sanitation, does not pick up trash from commercial businesses, only residencies. Businesses have to hire a private carter. Private carters are notorious for not giving two fucks. They have also been responsible for many pedestrian accidents as well.

I have never really noticed a surge in trash in the streets after DSNY comes by. Though, after schools opened, my house is around the corner from a public school and I see an immediate surge of snack wrappers tossed on my lawn. Same with the building I own near another school, wrapper trash all over.

Re: We picked up, tracked, and analyzed 130k pieces of litter in SF

#70
post #45

Cigarette butts seem to be the most common by count , but what about weight and volume? On the streets of NYC, I don't really notice the cigarettes, but I do notice the enormous amount of plastic bags (much of it stuck in trees), plastic or paper cups, straws, takeout containers. And gum. If you ever look at a sidewalk and see dark splotches [1], that's discarded chewing gum. It's absolutely everywhere. Not as invasi…

SF makes NYC look like Disneyland.

having just moved from SF to NYC, I think the trash bags in NYC are much worse than the majority of SF. Union Square and the Tenderloin are another phenomenon entirely though with feces and urine everywhere. This appears to be less common in NYC.
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