UBC study links living near highways to risk of neurological disorders

Post by Reason077 » Mon, Jan 27, 2020, 2:36 PM UTC

brownbat wrote: post #110

Reason077 wrote: post #109

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Claims that tyre/brake particles exceed exhaust emissions are inevitably referring to particulate mass , not particulate count. One large particle can weigh as much as millions of nanoparticles, but is far less dangerous. Exhaust nanoparticles (sub-PM2.5) are small enough to penetrate the respiratory system, diffuse to the blood stream, and cross the blood-brain barrier. Here in London, some of the most obviously pol…

> Claims that tyre/brake particles exceed exhaust emissions are inevitably referring to particulate mass, not particulate count Huh, all the studies I've read and linked are comparing like with like within particle size categories. Idling considerations are addressed in the modeling too. You seem fairly unshakable here, but the topic seems well researched and the results are pretty unambiguous to me.

Post by el_memorioso » Mon, Jan 27, 2020, 5:58 PM UTC

hhsuey wrote: post #69

chiefalchemist wrote: post #60

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Re: Independent of income Living near a noisy highway is rarely prime real estate. How do we account forincome when there are so few in that subset? I also wouldn't discount the effect of endless stress. That is, the drone of noise. I recently moved from to a street that's fairly busy. Only in the middle of the night is it quite. I don't like it.

Also, the neighborhoods tend to be safer and more inviting than those right next to the major freeways. I was originally thinking air quality is the major reason, but Vancouver has really good air quality overall compared to where I live in Los Angeles. I would be interested in seeing this type of study be done across cities with different air quality.

Post by klyrs » Tue, Jan 28, 2020, 1:05 AM UTC

pkulak wrote: post #103

klyrs wrote: post #91

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> Moving an automobile a couple miles in a dense urban environment at very slow speeds shouldn't require much energy, at least from a pure physics standpoint. If the terrain is flat, I agree. In hilly cities, not so much.

Well, if you end up were you start, hills don't matter to physics.