Fully agree with your article. I think you should add something about moving heavy cargo by truck as well. Not all the particulates from these big rigs come from the diesel engine, though the black clouds at stop lights are annoying when I ride my bike. The Greenland ice sheet albedo problem is mostly caused by particulates from tires, though forest fires may have passed them now. Feedback loops. The problem is the car overall. I have 10,000 miles on my bike tires and they show almost no sign of wear. If we can get the cars and trucks off the roads, at least in part, a lot more people would ride, instead of just crazy people like me.
The Alberta government has introduced a tax on EVs, officially to compensate for the reduced tax revenue from fossil fuel sales, not to reduce or compensate for the increased particulate emissions. Our government bases policy on social media, not science...
They may say it’s “officially” to compensate for reduced tax revenue from gas sales, but what do those tax dollars do? Pay for maintenance on roads that everyone uses. If EV’s weren’t taxed at all, when they’re heavier and cause more wear on roads, how would DMV’s earn any revenue for repair costs in an all-EV future? The money would still have to come from somewhere, wouldn’t it?
None of these articles seem to take into account the fact that EV's use dynamic breaking rather than traditional breaking via brake pads.
This reduces emissions from brake pads for the same trip by anything up to 85%. One of the reports does mention this effect, but only once and they never seem to take it into account in their calculations, probably because they don't know how to measure it.
When you take this into account for urban operation, which is primarily what they seem to be interested in, that EV particular emissions appear to be slightly less than their internal combustion engine equivalence.
You could actually read two of these reports as supporting further use of internal combustion engine Cars over EV's because of their claimed increased particulate admissions, which is a bizarre position to take! (they claim incentives to purchase EV'S should be removed
Yes the first controversial study clearly shows that the braking is regenerative and doesn’t add to emissions. And EVs are better across the board but they still have lots of particulates.
Reading that report in a bit more detail I've discovered more information about dynamic breaking (RBS) but they also make some really bizarre statements
For instance they spend a long paragraph complaining about how internal combustion engine vehicles don't have regenerative electrical breaking installed on them. Well, if they did have regenerative braking installed on them then they'd be hybrids!
They also spent some time worrying about unused brake pads rusting up and causing additional emissions when they used without showing any understanding that when you used RBS you still sometimes use your traditional brakes and hence the pads are not going to rust up.
Additionally they worry about the wear in time for brake pads when RBS is present, well it's exactly the same as when RBS isn't present from the point of view of mileage and braking. It just takes a little longer with regards calendar time.
The Izetta was my first street legal car I learned to drive with .;-) Early vehicles were go-karts and road racing cars while growing up in Germany. Anyone doubting particulates and stuff coming off tires has not been to a road race circuit where the outside of nearly every turn will have piles of rolled up rubber (called marbles) and tiny dust-like particles that comes off of car tires while cornering and braking. Depending on the number of cars and classes black "drifts" of this stuff can be seen blowing across the road from the air movement from every car passing by. Massive impact on the highways where it may be more evenly distributed. So aside from the obvious huge truck tire strips separated from tires that are routinely seen along side major Interstates in the U.S. tire wear and of course brake pad material also is coming off! My US $.02 wroth, but at the current exchange rates and falling US $ this may not amount to much.
Fully agree with your article. I think you should add something about moving heavy cargo by truck as well. Not all the particulates from these big rigs come from the diesel engine, though the black clouds at stop lights are annoying when I ride my bike. The Greenland ice sheet albedo problem is mostly caused by particulates from tires, though forest fires may have passed them now. Feedback loops. The problem is the car overall. I have 10,000 miles on my bike tires and they show almost no sign of wear. If we can get the cars and trucks off the roads, at least in part, a lot more people would ride, instead of just crazy people like me.
Yup. There is also a deforestation problem with tires. Most latex rubber from trees goes to make tires.
The Alberta government has introduced a tax on EVs, officially to compensate for the reduced tax revenue from fossil fuel sales, not to reduce or compensate for the increased particulate emissions. Our government bases policy on social media, not science...
They may say it’s “officially” to compensate for reduced tax revenue from gas sales, but what do those tax dollars do? Pay for maintenance on roads that everyone uses. If EV’s weren’t taxed at all, when they’re heavier and cause more wear on roads, how would DMV’s earn any revenue for repair costs in an all-EV future? The money would still have to come from somewhere, wouldn’t it?
None of these articles seem to take into account the fact that EV's use dynamic breaking rather than traditional breaking via brake pads.
This reduces emissions from brake pads for the same trip by anything up to 85%. One of the reports does mention this effect, but only once and they never seem to take it into account in their calculations, probably because they don't know how to measure it.
When you take this into account for urban operation, which is primarily what they seem to be interested in, that EV particular emissions appear to be slightly less than their internal combustion engine equivalence.
You could actually read two of these reports as supporting further use of internal combustion engine Cars over EV's because of their claimed increased particulate admissions, which is a bizarre position to take! (they claim incentives to purchase EV'S should be removed
Yes the first controversial study clearly shows that the braking is regenerative and doesn’t add to emissions. And EVs are better across the board but they still have lots of particulates.
Reading that report in a bit more detail I've discovered more information about dynamic breaking (RBS) but they also make some really bizarre statements
For instance they spend a long paragraph complaining about how internal combustion engine vehicles don't have regenerative electrical breaking installed on them. Well, if they did have regenerative braking installed on them then they'd be hybrids!
They also spent some time worrying about unused brake pads rusting up and causing additional emissions when they used without showing any understanding that when you used RBS you still sometimes use your traditional brakes and hence the pads are not going to rust up.
Additionally they worry about the wear in time for brake pads when RBS is present, well it's exactly the same as when RBS isn't present from the point of view of mileage and braking. It just takes a little longer with regards calendar time.
The Izetta was my first street legal car I learned to drive with .;-) Early vehicles were go-karts and road racing cars while growing up in Germany. Anyone doubting particulates and stuff coming off tires has not been to a road race circuit where the outside of nearly every turn will have piles of rolled up rubber (called marbles) and tiny dust-like particles that comes off of car tires while cornering and braking. Depending on the number of cars and classes black "drifts" of this stuff can be seen blowing across the road from the air movement from every car passing by. Massive impact on the highways where it may be more evenly distributed. So aside from the obvious huge truck tire strips separated from tires that are routinely seen along side major Interstates in the U.S. tire wear and of course brake pad material also is coming off! My US $.02 wroth, but at the current exchange rates and falling US $ this may not amount to much.