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Perceptions of CO2 Report - Global CCS Institute

Perceptions of CO2 Report - Global CCS Institute

Perceptions of CO2 Report - Global CCS Institute

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InputIndCO 2 emissions from industry are much higher than CO 2 inputsinto industry.InfoAInfoChemistryInfoProperty 0.079 **InfoGHeffectCarbon dioxide (CO 2) consists <strong>of</strong> one carbon atom and twooxygen atoms bound together. It is mainly produced by burningcarbon-containing fuels.Properties:•Colourless•Odourless•Heavier than air, therefore accumulates in low lying areas•Non-flammable•Non-explosive at normal pressure•Water-solubleCauses 'greenhouse effect' in atmosphere. Greenhouse gasesin our atmosphere make sure the sun's warmth on earth doesnot immediately escape out to space. This 'greenhouse effect'provides a habitable climate for plants, animals and humans.The toxicity <strong>of</strong> CO 2 depends on its concentration in theatmosphere. Please read the following table which listsindicative physical effects <strong>of</strong> increasing CO 2 concentrations.Concentration <strong>of</strong> CO 2 (%)Time <strong>of</strong>exposure toonset(minutes)SymptomsExample<strong>of</strong>concentration0.04% Prolonged None AtmosphericconcentrationProvidedInfoA0.1% Prolonged None Concentration insome hotspringsInfoToxicity1% Prolonged Drowsiness Concentration in aclosedroom full<strong>of</strong> people2-6% 5-30 Heavier orfasterbreathingHeadache,dizziness,chills anddecrease insensationBreathfromhumans(100timesatmosphericconcentration)6-10% 5-60 Dim vision,tremorsand loss <strong>of</strong>consciousness (risk <strong>of</strong>death)InfoPlaceInfoUsePlaces where CO 2 exists•Atmosphere•Breath from humans•Forests•Oceans•Underground in oil and gas fields and magma chambers fromvolcanoesUses <strong>of</strong> CO 2•CO 2 is used to make drinks fizzy e.g. cola and sodaUnderstanding how individuals perceive carbon dioxide | 75

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