71–80 of 93 posts
Earlier quoted context omitted.
Just how great are the PM emissions from car tires? Has anyone quantified the effect?
2015 EPA Tire wear is something like 10%, maybe a bit less. Break wear is much higher at 60%. Engine emissions is most of the rest. EVs are heavier so they will have more tire wear. They don't brake as often, so that would go down.
Earlier quoted context omitted.
2015 EPA Tire wear is something like 10%, maybe a bit less. Break wear is much higher at 60%. Engine emissions is most of the rest. EVs are heavier so they will have more tire wear. They don't brake as often, so that would go down.
Nitpick: I think you mean to say EVs don't apply friction braking as often as use regenerative braking a lot.
You should be worried about IAQ - indoor air quality. This is because you spend 90% of your time indoors. It is also because IAQ is far worse than outdoor air quality. The kitchens of most homes would be closed down by inspectors if they were commercial. Correctly ventilating a home with a ERV/HRV, bathroom ventilation and oven hood (harder than it sounds because many designs are snake oil) solves the problem. Few pe…
-you seem extremely confident in city evaluations of IAC for businesses. My city has shit OAC, water quality, etc. why would I believe they have good IAC standards? TBH i doubt they even measure it. I live in a top-5 US city by population and I honestly believe what you're saying about local government enforcing quality standards is crap.
-offgassing is a thing that happens with solid objects exposed to high temperatures (container walls inside a tokamack, for example). Liquids inside a container don't off-gas on their containers unless the container leaks.
Are you saying your average oil can container leaks toxic gas, or are you lying through your keyboard again?
You should be worried about IAQ - indoor air quality. This is because you spend 90% of your time indoors. It is also because IAQ is far worse than outdoor air quality. The kitchens of most homes would be closed down by inspectors if they were commercial. Correctly ventilating a home with a ERV/HRV, bathroom ventilation and oven hood (harder than it sounds because many designs are snake oil) solves the problem. Few pe…
-what qualifications do you actually have
-what characteristics should people be looking for in filters
You should be worried about IAQ - indoor air quality. This is because you spend 90% of your time indoors. It is also because IAQ is far worse than outdoor air quality. The kitchens of most homes would be closed down by inspectors if they were commercial. Correctly ventilating a home with a ERV/HRV, bathroom ventilation and oven hood (harder than it sounds because many designs are snake oil) solves the problem. Few pe…
Is there an easy way to measure your indoor air quality?
I agree with the op's comment about kitchens. Mine is poorly ventilated and the PM2.5 count goes up 100x when cooking.
Can anyone recommend an air quality detector for personal use. My second floor office is in downtown Oakland by a busy road. The windows are closed and an air filter is always running. Perhaps the air filter is providing a false sense of security and not trapping any sub 2.5 micron particles. My last air quality detector seemed questionable. I could leave the windows open during rush hour it would always just say the…
A large HEPA filter in a closed room will remove most PM2.5 particles. That monitor will show you what's going on.
Earlier quoted context omitted.
> If they did, I would hope people around them recognized that their conflation of neurotoxins in water and largely benign electronics makes very little sense. Right now we consider these electronics, and their emissions, largely benign but that doesn't mean that's actually the case in the long term. Think about the amount of wireless stuff constantly going on around you: GSM, EDGE, UMTS, LTE, bluetooth, several WLAN…
> GSM, EDGE, UMTS, LTE, bluetooth, several WLAN standards, radio, satellite Non-ionizing, regulated dosage. Maybe we'll discover they were dangerous, but evidence doesn't support it so far.
I wouldn't be surprised if some future historians are able to look back at modern cities the same way that we look at granny pictures of a soot-streaked city of the industrial revolution. "Yes, some of them thought that it was bad to have all that stuff around, but most thought it wasn't too serious compared to the immediate economic benefit it brought."
"Yes, the planet got destroyed. But for a beautiful moment in time we created a lot of value for shareholders." http://www.newyorker.com/cartoon/a16995
Clean diesel is the biggest industry scam since smoking. Thousands die every year from small particle emission from vehicles. Smog damages baby brain development. Most diesel cars emitt up to ten times small particles like pm2.5 than car regulation and it's really bad for human health.
"Are Diesels More Dangerous than Cigarettes as a Cause of Lung Cancer?" - http://www.second-opinions.co.uk/diesel_lung_cancer.html