| Journal Call no. | G1.A83 |
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| Author | Peart, M. R. |
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| Article Title | Acid rain and surface-water acidity in Hong Kong / M.R. Peart, Fung, L.K. and Guan Dongsheng. |
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| Is Part Of | Asian geographer : a geographical journal on Asia and the Pacific Rim ; v.14, no.2, 1995, p.86-103, illus. |
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| Abstract | Hong Kong experiences acid precipitation. According to a range of definitions, such as a pH of 5.6 or less, the streams and rivers of Hong Kong do not exhibit excessive acidity and could not be classified as acid surface waters. A permanent soil pipe system and two very ephemeral systems have been monitored near the study basin at the Kadoorie Agricultural Research Centre along with a further system on the Lam Kam Road. The pH values of the pipe systems are lower than for the streams currently being monitored. The pipeflow data suggest that the soil environment may be responsible for neutralizing the acid rain input. The possible mechanisms for this transformation are discussed in the article. Information on the pH of wetland environments is presented for comparison with the streams: ponds have a median pH of 6.3 while marshes have a median pH of 6.1. These values are not dissimilar to those of the streams. |
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