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A kinetic study of ...
A kinetic study of the gas-phase reaction between the hydroxylradical and atomic mercury
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Sommar, Jonas, 1969 (författare)
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- Gårdfeldt, Katarina, 1959 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg
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Feng, Xinbin (författare)
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- Strömberg, Dan, 1959 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för miljövetenskap och kulturvård,Department of Environmental Science and Conservation,University of Gothenburg
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(creator_code:org_t)
- 2001
- 2001
- Engelska.
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Ingår i: Atmos.Environ. - 1352-2310 .- 1873-2844. ; 35:17, s. 3049-3054
- Relaterad länk:
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https://gup.ub.gu.se...
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Abstract
Ämnesord
Stäng
- The atom is the dominating species of mercury in the atmosphere. Its oxidation processes are of great interest since it is mainly oxidised mercury that undergoes deposition and thereby spreads into the ecosystems and becomes bioaccumulated. The kinetics of the gas-phase reaction between atomic mercury and hydroxyl radical has been determined at room temperature and atmospheric pressure of air by relative rate technique. OH radicals were produced by photolysis employing methyl nitrite. By using cyclohexane as the reference compound, the rate coefficient obtained was k(Hg0+·OH)=(8.7±2.8)×10−14 cm3 s−1 leading to natural lifetimes of mercury at global mean conditions of 4–7 month due to this reaction.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Nyckelord
- Rate coefficient
- Oxidation
- Atmosphere
- Mercury
- Tropospheric life-time
- Rate coefficient
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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