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  • Photochemical degradation of dissolved organic matter (DOM) plays an important role in the carbon cycle. Irradiation experiments were conducted to evaluate the influence of chemical factors, specifically those expected to be altered in natural waters by atmospheric acid deposition, on photodegradation of DOM. These included pH, nitrate, iron and calcium. The experiments were carried out using stream and lake water samples with a wide range of dissolved organic carbon (DOC) concentration. The results suggest that photodegradation rates of DOM will decrease during recovery from acidification. Hence, lower photodegradation rates may be responsible for increases in DOM observed in some regions of North America and Europe.
  • Photochemical degradation of dissolved organic matter (DOM) plays an important role in the carbon cycle. Irradiation experiments were conducted to evaluate the influence of chemical factors, specifically those expected to be altered in natural waters by atmospheric acid deposition, on photodegradation of DOM. These included pH, nitrate, iron and calcium. The experiments were carried out using stream and lake water samples with a wide range of dissolved organic carbon (DOC) concentration. The results suggest that photodegradation rates of DOM will decrease during recovery from acidification. Hence, lower photodegradation rates may be responsible for increases in DOM observed in some regions of North America and Europe. (en)
Title
  • Interaction of extrinsic chemical factors affecting photodegradation of dissolved organic matter in aquatic ecosystems
  • Interaction of extrinsic chemical factors affecting photodegradation of dissolved organic matter in aquatic ecosystems (en)
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  • Interaction of extrinsic chemical factors affecting photodegradation of dissolved organic matter in aquatic ecosystems
  • Interaction of extrinsic chemical factors affecting photodegradation of dissolved organic matter in aquatic ecosystems (en)
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  • RIV/60077344:_____/14:00427669!RIV15-GA0-60077344
http://linked.open...avai/riv/aktivita
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  • I, P(GAP503/12/0781)
http://linked.open...iv/cisloPeriodika
  • 5
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  • 22283
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  • RIV/60077344:_____/14:00427669
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  • photodegradation; dissolved organic matter; calcium; nitrate; iron; pH (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
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  • [A9D9D0C2155E]
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  • Photochemical & Photobiological Sciences
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  • 13
http://linked.open...iv/tvurceVysledku
  • Porcal, Petr
  • Dillon, P. J.
  • Molot, L. A.
http://linked.open...ain/vavai/riv/wos
  • 000335171200010
issn
  • 1474-905X
number of pages
http://bibframe.org/vocab/doi
  • 10.1039/c4pp00011k
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