Particulate matter air pollution
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- Опубликовано: 31 дек 2017
- From our free online course, “Energy Within Environmental Constraints”:
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This is the fourth of a four-part series covering all the major components of air pollution. Here, Harvard Professor David Keith explains particulate matter, which shortens lifespan substantially.
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Do you have the sources for the epidemiological study that you reference. I would like to share this information, but require the source of the study. Thanks!
I am from Delhi and PM 2.5 is 388 and PM 10 is 1300, highest in the world which is the major concern for India.
no it is not. the highest is Ulaanbaatar. In winter pm2.5 reaches well above 1000 there.
Time to count the cuts in our lives
Micro plastics and ROUNDUP. 🍺
The video content is so excellent, congratulations
This is one of the best talks on health effects of particulates. The only problem is the last sentence , "The clean air act will roughly extend the life of an average US citizen by a year." I really wanted to share this with global warming deniers to point out that fossil fuel burning is affecting them NOW, but if they see that all the expense and effort extends life only one year, as I have come to know them, they will simply scoff at the notion of only living life one extra year, as they seem to be very short sighted and will simply go back to their couch and smoke a cigarette and drink themselves blind. If I can figure out how to edit out the last sentence, this is an extremely effective video.
if you paid attention, there's no evidence provided in this video whatsoever.
@@Cenot4ph There's tons of research on the heart and lung health effects of the particulates from fossil fuel burning.
@@runcheatthereaper9016 if you have on hand, I'd love to see it
@@Cenot4ph First of all, let me be clear on where you are coming from. Are you really trying to argue that pollution is not bad for your health ?
@@runcheatthereaper9016 you're already making the first assumption that pm2.5 is pollution.
A scientific inquiry doesn't start with assumptions, the answer is always it depends and we'll see.
The composition here is important to understand secondary.
Finally what composition would negatively impact health
Thanks sir
today in new york subway was at 400ppm, times sq showing 900ppm Christopher street station someone said the highest at a whopping 1400ppm. there's no coal burning there, just metal particulars. plus its not just what you breath its how it sticks to your skin... .and what it does to it...
are there any references to the source articles?
How can I measure the amount of particulate matter in the exhaust or emission of a vehicle? Is there a standard test or a device I can use?
Nowadays there are small sensors which run with the Raspberry Pi system. They are quite affordable as well around 50 dollars you can get a small module. Let me check for a link.
This is a great question! Would love to know about a test or a device.
I have been watching online Air quality monitoring websites and comparing their reports with the density of "chemtrailing", daily, for a couple of months.
The heavier they spray the higher PM 2.5
Love you so much awesome very useful information superb
Hi, I am an English teacher in France (and an instructional designer) and I'd like to know if I can use this video for teaching purposes as I'm working on a project where lots of interactive contents will be created with an authoring tool. Could you please let me know if you give le the authorization to use this content? thanks a lot.
Its under US copyright law so you should be good to use it for educational purposes.
Love From Bangladesh
yikes
I live in a North Indian City and have developed Chronic Bronchitis. In Winters Pm2.5 levels remains 300+ and Pm10 remains 200+ for most days and sometimes reaching as high as 600. It's literally living in Hell here for people like me. Sadly, people don't care here and neither the government is serious about this Health Hazard.
Why do you view PM 2.5 to be more harmful than NO2?
In Skopje 🇲🇰🇲🇰🇲🇰 and all big cities air has so much pollution
Where does Ash fall into the conversations ?
Forgot to mention all micro plastics in the air and the ROUNDUP that is everywhere. Lol we all gonna die soon.🍺
A wide variety of things can be done to reduce pollution. One of the things that can be done is to make the existing road vehicles more fuel efficient. Nearly all petrol vehicles that are on the roads today are suitable to have LPG systems installed. LPG is a cleaner and cheaper fuel. Petrol will still be needed to start the engine but then the LPG system will soon activate. The rate of petrol consumption will reduce which will cut emissions and still benefit the environment. Hybrid cars, electric cars and even hydrogen powered cars are all beneficial too.
No, electric cars are an environmental disaster and this propaganda video is global warming propaganda disguised as a "pollution" video. CO2 isn't pollution, it's plant food.
@@ricktd6891 Electric cars are not all bad. They do have a part to play. The fact is there is too much CO2 pollution in the world. You can't reduce it by making all cars run on conventional fuel, some need to be electric. And not all plant food is bad. Potatoes are a type of plant food. Is that pollution? I don't think so.
@@Mr_Chris__ CO2 isn't pollution and global warming is a good thing when the planet is historically cold. Go do some research instead of watching propaganda videos.
@@Mr_Chris__ And EV's are bad for the environment and the global warming scam killed millions of people and EV's are part of that scam. I don't want any part of genocide, thanks.
@@ricktd6891 CO2 emitted from cars IS pollution. If you're walking in or near the city during rush hour, there's no way you could say the air is clean. I'm not anti car, the problem is the quantity of polluting cars on the roads. Global warming is not a good thing if it means people are displaced from their homes. You say electric cars are an environmental disaster, but the car manufacturers would disagree with you. One of the problems with electric cars is the politics associated with them. If an electric car can be charged from an off grid source such as solar, that would probably be the most efficient a driver could be.
I need to stop inhaling Los Angeles and should not of come here over a month ago. It has taken my fitness and IS destroying my body because I chose a location ultimately to spend most of the day at where the aqi may exceed four figure AQI and this is common. The 9 month figure is wickedly missleading. Most effected lose years however great detail likely defends but it distracts From those who are sickened decades or lose them or commonly both.
mostly based on epidemiological studies, that right here invalidates such strong conclusion drawn in this video.
provide actual evidence and not loosely based perceived correlations.
even your graph at 2:00 provides NO answers to base life expectancy figures on without taking into considerations a huge amount of variables.
These findings are unethical since they're designed to scare instead of inform.
Mini karl benz
The exposure to 10 microgram/m3 of PM2.5 reduce your life span for 3/4 of the year is not correct. For example if the life expectancy average of US citizen is around 78 years, the exposure to 10 microgram/m3 of PM2.5 will reduce the lifespan to 75 years. By comparing the results at 20 and 30 microgram/m3, increasing of PM2.5 for 10 microgram/m3 reduces the life expectancy for 1 year.
Sorry but it's all lies. CO2 isn't pollution.
@@ricktd6891 CO2 is gas. This video and the comment are about solid particles. Did you even watch the video?
@@banu0245 Sorry. This must have been passed to me by a global warming scam alarmist and I got it confused with the other propaganda. Notice in this propaganda video they tell you to look up all the harm fossil fuel pollution does to you but they don't tell you that you would be living in a cave or maybe a log cabin if you're a good builder living to be about 35 years old without all the benefits of fossil fuel. Any time anyone wants to take away your cheap reliable energy, they are traitor scum who should be in jail minimum punishment.
@@ricktd6891 No one tells to stop using fuels in this video. You seem to be rather not talking about the problem at all, in fear of losing benefits of modern urban lifestyle.
The air pollution problem exist and it doesn't care whether you it is a propaganda or not. The solution to this doesn't have to be as harsh as abandoning fossil fuel usage at all though. It could be better filters, better public transport system etc.
@@banu0245 Oh really ? What did you just do right there ? You're pushing public transportation. So you want to take away my car maybe ? Oh wait a minute... they mention diesel engines as being part of the problem, sooo they aren't suggesting getting rid of them ? Oh no just throw out your old engine and buy a new more efficient one... even though they told you the clean air act cleaned up most of the pollution already. So now can you tell me how I'm supposed to get my 32 and my 40 foot ladders on a bus ? Are you one of those poor sheep that thinks global warming is destroying the planet, it's overpopulated and suffering from deforestation ?