The importance of ammonia (NH₃) in the atmosphere and its role in acidification is increasingly recognized. A detailed emission inventory of NH3 for South Korea is carried out for different sources using emission factors. Results indicate that the emission of ammonia has increased by 21% over the last 11 yr from 143 000 t yr?¹ in 1988 to 181 000 t yr?¹ in 1998. The major contributors to the NH₃ emission in South Korea are livestock and fertilizer application that account for 70 and 26% of total NH₃ emission, respectively. The 11×14 km (0.125˚ long. × 0.125˚ lat.) grid distribution of emission of ammonia shows an maximum in the Yochon area due to the largest fertilizer factory and relatively wide regions of high NH3 emission in the northwestern part of South Korea due to a great number of livestock. It is found that the nitrogen ratio of wet deposition of NH?₄ to emission of NH₃ in South Korea is averaged to be 0.45.
Abstract<BR>1. Introduction<BR>2. Data and Analysis Method<BR>3. Results<BR>4. Summary and Conclusions<BR>Acknowledgements<BR>References<BR>
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