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  4. How much pollution does a volcano produce?
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How much pollution does a volcano produce?

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Offline thedoc

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How much pollution does a volcano produce?
« on: 31/10/2016 08:11:59 »
How much pollution does a volcano produce? I’ve heard that a volcanoes spew out as much pollution as all the cars that have ever been put on Earth combined but how much pollution does a volcano produce when it erupts?
Asked by Darwin Teague


                                        Visit the webpage for the podcast in which this question is answered.

[chapter podcast=1041 track=08.06.15/Naked_Scientists_Show_08.06.15_1573.mp3]  ...or Listen to the Answer[/chapter] or [download as MP3]

« Last Edit: 31/10/2016 08:11:59 by _system »
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Offline Bass

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  • Re: How much pollution does a volcano produce?
    « Reply #1 on: 16/06/2008 06:11:24 »
    What you've heard is true.

    Beside particulate (ash and other particles), volcanoes can release enormous quantities of gases, including the following pollutants:
    H2O water vapor
    CO2 carbon dioxide
    SO2 sulfur dioxide
    H2S hydrogen sulfide
    CO carbon monoxide
    HCl hydrogen chloride
    HF hydrogen flouride

    Even non-explosive basaltic volcanoes (Hawaii, Iceland) can release damaging quantities of pollutants in the form of "vogâ", or volcanic smog.  The Hawaii volcano observatory has recently issued warnings for sulfur dioxide emissions and restricted access to areas around Kilauea.  The 1783 Icelandic basalt eruption resulted in emission of over 100 tons of SO2 in less than 8 months- killing humans, livestock and damaging crops in both Iceland and Europe.  Gas emissions during the eruption of the Siberian traps may have caused the great Permian extinction 250 million years ago.  Volcanic SO2 emissions can range up to 10 million tonnes per day.
    « Last Edit: 18/06/2008 12:31:34 by daveshorts »
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    Offline thedoc

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  • How much pollution does a volcano produce?
    « Reply #2 on: 18/06/2008 13:11:59 »
    Listen to this question on our podcast by clicking here
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    Offline Alan McDougall

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  • How much pollution does a volcano produce?
    « Reply #3 on: 07/07/2008 20:34:31 »
    Krakatoa
    Krakatoa is a volcanic island in the Sunda Strait between Java and Sumatra in Indonesia.


    --------------------------------------------------------------------------------
    See also:
    Krakatoa immence volano

    The best known eruption culminated in a series of massive explosions on August 26-27, 1883.

    The combined effects of pyroclastic flows, volcanic ashes and tsunamis had disastrous results in the region.

    The official death toll recorded by the Dutch authorities was 36,417 and many settlements were destroyed, including Teluk Betung and Ketimbang in Sumatra, and Sirik and Semarang in Java.

    The eruption also produced erratic weather and spectacular sunsets throughout the world for many months afterwards, as a result of sunlight reflected from suspended dust particles ejected by the volcano high into Earth's atmosphere.

    This worldwide volcanic dust veil acted as a solar radiation filter, reducing the amount of sunlight reaching the surface of the earth.

    In the year following the eruption, global temperatures were lowered by as much as 1.2 degrees Celsius on average.

    Weather patterns continued to be chaotic for years, and temperatures did not return to normal until 1888..

    For more information about the topic Krakatoa, read the full article at Wikipedia.org, or see the following related articles:
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    Offline harmonsmith

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  • How much pollution does a volcano produce?
    « Reply #4 on: 04/06/2009 07:54:43 »
    I think the biggest source of water pollution is Industries. Who are releasing large amount of hazardous waste into our water resources. In order to do proper treatment of this waste water consultant like newbielink:http://www.jnblabs.com/ [nonactive] must be contacted
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    Offline Don_1

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  • How much pollution does a volcano produce?
    « Reply #5 on: 04/06/2009 08:10:18 »
    Quote from: harmonsmith on 04/06/2009 07:54:43
    I think the biggest source of water pollution is Industries. Who are releasing large amount of hazardous waste into our water resources. In order to do proper treatment of this waste water consultant like XXXXXXXX must be contacted

    Well you would say that, wouldn't you, Mr. SPAM.
    « Last Edit: 04/06/2009 08:13:02 by Don_1 »
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    Offline Alex Smith

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  • How much pollution does a volcano produce?
    « Reply #6 on: 09/06/2009 06:13:35 »
    The largest volcanic eruption since the rise of modern humans, Homo sapiens, is the great eruption of Toba, in Sumatra, about 71,000 years ago. It produced some 2800 cubic kilometers of ash and may have reduced the world's human population to only 10,000. The eruption of Toba is hypothesized by some scientists to have decimated the early human inhabitants of S Asia. The eruption lasted perhaps two weeks, but the ensuing "volcanic winter" resulted in a decrease in average global temperatures by 3 to 3.5 degrees Celsius for several years.


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    newbielink:http://www.makemoneysystem.co.uk [nonactive] and newbielink:http://www.ukmakemoneyprograms.com/ [nonactive] Bradford, England

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    carl lane

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    « Reply #7 on: 01/03/2010 11:43:27 »
    i love this it has helped me soo much :) thanks p.s. i love josh s
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    Zim

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    « Reply #8 on: 17/04/2010 10:05:17 »
    Who is Marie Edmonds and what are her qualifications?  Her reply sounds just as generalized and unsubstantiated as the origonal "myth".  
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    Offline yor_on

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  • How much pollution does a volcano produce?
    « Reply #9 on: 19/04/2010 16:20:28 »
    How much pollution does a volcano produce?

    That's a very good question that I too wonder. How the he** do you measure a ash cloud constantly erupting from a volcano? Shining lasers on it? measuring the light shining through it? "Accurate forecasts of the amount of ash expected to fall in a given area are difficult to produce. Ash fall amounts depend on the character of the eruption (duration, cloud height, grain size distribution, water content) and the prevailing winds, all factors that can change rapidly and are difficult to measure accurately."

    Take a look here too. 
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    Offline Mazurka

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  • How much pollution does a volcano produce?
    « Reply #10 on: 20/04/2010 16:06:22 »
    I thought this put things into context quite nicely...
    http://www.informationisbeautiful.net/2010/planes-or-volcano/
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    Offline rosy

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  • How much pollution does a volcano produce?
    « Reply #11 on: 20/04/2010 16:46:33 »
    For Zim, this would  be her, then:
    http://www.esc.cam.ac.uk/people/academic-staff/marie-edmonds
    Her publications list is linked from that page.
    As to her qualifications, I can't immediately find her CV online, but I guess if you actually wanted to know you could e-mail her and ask.
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    Offline yor_on

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  • How much pollution does a volcano produce?
    « Reply #12 on: 20/04/2010 18:29:31 »
    Here is an interesting


    Volcano emitting 150-300,000 tonnes of CO2 daily

    Extrapolating from what?
    Where do they get their numbers?
    ===

    This are the only numbers I know off?

    Institute of Earth Sciences. 

    Eyjafjallajokull eruption. 

    « Last Edit: 20/04/2010 23:42:13 by yor_on »
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    Martin

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    « Reply #13 on: 12/12/2010 15:38:25 »
    Zim, I'm astonished that you have the audactiy to question anyone's qualifications when you can't even spell original correctly!
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    jm

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    « Reply #14 on: 08/02/2011 17:52:10 »
    Martin, it's funny that you pointed out somebody's mistake when you also made one when you spelled audacity. It's a typo, get over it. I'm also curious who this Marie is.
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    Mike

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    « Reply #15 on: 04/11/2011 15:30:29 »
    Why-oh-why is it so hard to decide?

    Dr Edmonds says volcanoe emit around 100,000,000 tonnes of CO2 a year.
    The US Geological Society says Volcanoes release more than 130 million tonnes of CO2 into the atmosphere every year.
    Guardian.co.uk says that the British Geological Survey (the Grauniad's link doesn't work) says it has been estimated that subaerial volcanism releases around 300 Mt/yr CO2.

    Who do we believe? ..maybe even the nutters who are in denial!

    Mike.
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    Dennis Malkin

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    « Reply #16 on: 11/10/2016 21:34:46 »
    How many BTUs of heat does the erupting volcano emit per day?  Everything I have read only talks about gases and not at all about temperature that is being released how many BTUs does matter also.
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