Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Car tires biggest likely source of microplastics in California coastal waters

latimes.com

Post reply on HN
Print view View original

41–50 of 232 posts

Re: Car tires biggest likely source of microplastics in California coastal waters

#41

Post by thatswrong0 »

tyri_kai_psomi wrote: post #24
bpodgursky wrote: post #12

Earlier quoted context omitted.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3222987/ > Most Plastic Products Release Estrogenic Chemicals: A Potential Health Problem That Can Be Solved > Results: Almost all commercially available plastic products we sampled—independent of the type of resin, product, or retail source—leached chemicals having reliably detectable EA, including those advertised as BPA free. In some cases, BPA-free products released ch…

(DISCLAIMER: I am hoping we can discuss this from a purely intellectual perspective and not bring ideology into it) I have always postulated that the increase of estrogenic compounds may have some impact on what seems to be an utter surge of reported cases of gender dysphoria amongst others other disorders that typically arise when you mess with hormonal/endocrine systems. Has there been any scientific research done…

I would expect if that were the case that you’d see a disparity in the number of MtF compared to FtM. And the MtF to FTM ratio is according to the NIH 2.2:1, which is pretty significant

(Although now I’m reading the methodology behind that number may be flawed)

Re: Car tires biggest likely source of microplastics in California coastal waters

#42

Post by wil421 »

liveoneggs wrote: post #20

in atlanta soil near roads tends to have a lot of lead. A daycare near me had to shutdown their playground/garden because it was testing really high in lead.

Where was this in Atlanta? I only remember this story and it was not because of car pollution.[1]

> The EPA believes the lead came from fill material used by the neighborhood's original developers to level out some of the lots more than a century ago.

[1]https://www.wsbtv.com/amp/news/local/atlanta/epa-confirms-se...

Re: Car tires biggest likely source of microplastics in California coastal waters

#43

Post by koolba »

jumpingmice wrote: post #35

Imagine all the problems that would be solved if someone invented a car with metal wheels, maybe one that can hold hundreds of people, goes really fast, is quiet and efficient....

I don’t know about the “quiet and efficient” but the rest of that describes a large armored personnel carrier: https://en.wikipedia.org/wiki/Armored_personnel_carrier

Re: Car tires biggest likely source of microplastics in California coastal waters

#44

Post by umvi »

luckydata wrote: post #40
umvi wrote: post #38

Earlier quoted context omitted.

...and can only go to select locations at certain times that may or may not align with your final destination or schedule.

the last mile problem can be solved in a million different ways: bikes, taxis, uber, walking, buses... Eliminating car culture is non optional if we want to save the planet.

It's easy to say "use trains" when you live in a highly dense area. But America-the-continent is massive and not very dense on average. I'm not convinced trains would be viable economically like they are in Japan.

Re: Car tires biggest likely source of microplastics in California coastal waters

#45

Post by Joelexander »

sp332 wrote: post #27
liveoneggs wrote: post #20

in atlanta soil near roads tends to have a lot of lead. A daycare near me had to shutdown their playground/garden because it was testing really high in lead.

Why does it have lead?

Lead used tp be a very common additive in gasoline. In the US there was no legislation to reduce it's use until the 1973 and it wasn't fully banned until 1996.

It can be assumed that any well-trafficked road during or before this period has substantial lead contamination.

Re: Car tires biggest likely source of microplastics in California coastal waters

#46

Post by billions »

jumpingmice wrote: post #35

Imagine all the problems that would be solved if someone invented a car with metal wheels, maybe one that can hold hundreds of people, goes really fast, is quiet and efficient....

Trains are less efficient than cars on a per mile basis.

https://www.theprch.com/this-vs-that/fuel-efficiency-planes-...

Re: Car tires biggest likely source of microplastics in California coastal waters

#47

Post by manigandham »

jumpingmice wrote: post #35

Imagine all the problems that would be solved if someone invented a car with metal wheels, maybe one that can hold hundreds of people, goes really fast, is quiet and efficient....

The effectiveness of trains is directly related to the distance between stops, and California (and much of the USA) is too spread out for current combination of technologies and politics.

Re: Car tires biggest likely source of microplastics in California coastal waters

#48

Post by dragonwriter »

umvi wrote: post #44
luckydata wrote: post #40

Earlier quoted context omitted.

the last mile problem can be solved in a million different ways: bikes, taxis, uber, walking, buses... Eliminating car culture is non optional if we want to save the planet.

It's easy to say "use trains" when you live in a highly dense area. But America-the-continent is massive and not very dense on average. I'm not convinced trains would be viable economically like they are in Japan.

They would be if the negative externalities of autos were priced in; trains aren't viable in America because autos are subsidized via substantial non-internalized negative externalities.

Re: Car tires biggest likely source of microplastics in California coastal waters

#49

Post by nathancahill »

dajohnson89 wrote: post #36
likpok wrote: post #22

Earlier quoted context omitted.

Ford was shipping cars with asbestos brakes in 1993. Asbestos brakes are still readily available on the aftermarket. Brake pads since 2015 sold in California and Washington must have less than 0.1% asbestos by weight (it's unclear to me if that's asbestos alone, or asbestos and other heavy metals like cadmium or mercury). Since the ban was put into place in 2015, you can reasonably infer a) that there were brake pads…

the subway brakes in washington dc are abestos brakes. you can smell them quite strongly.

Huh, TIL. Never knew what that smell was.

Re: Car tires biggest likely source of microplastics in California coastal waters

#50

Post by [deleted] »

anon1m0us wrote: post #15
tedsanders wrote: post #6

This is one reason why I don't like living near freeways, especially near on-ramps, off-ramps, and interchanges. Car pollution isn't just tailpipe emissions - I believe a lot of airborne particulates come from tires and brakes (especially during acceleration, deceleration, and turning). https://www.cdc.gov/air/particulate_matter.html

The airborne particulates from brakes is asbestos ! edit: Very odd that both mine and the contradictory reply to it are both down voted. What I said is a fact, so I'm not sure why anyone would disagree with it.

[deleted]
Post reply on HN