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Nature 444, 283-284 (16 November 2006) | doi:10.1038/444283a; Published online 15 November 2006

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Environmental chemistry: Browning the waters

Nigel Roulet1 & Tim R. Moore1

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Levels of dissolved organic carbon in British streams and lakes have risen over the past two decades. It might be a downstream effect of decreased acid rain — but isolating single factors is notoriously difficult.

It may be small, but dissolved organic carbon (DOC) — operationally defined as organic compounds in water that can pass through a 0.45-mum filter — is of great interest.

  1. Nigel Roulet and Tim R. Moore are in the McGill School of Environment and the Department of Geography, McGill University, Montreal, Quebec H3A 2K6, Canada.
    Email: nigel.roulet@mcgill.ca

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