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Mongolia. The prevention and the control of DSS events become, therefore, emergent issues among these countries. Ministry of the Environment, Japan set up a special committee on DSS issues in December 2002, which aims to accumulate and summarize the scientific knowledge on DSS issues, and to elaborate future programs of Japan. In September 2004, the special committee reported the progress of the committee based on the discussions among committee members as an interim report. Monitoring of DSS is mainly conveyed by Ministry of the Environment and Japan Meteorological Agency. Ministry of the Environment maintains a network of air monitoring stations, including DSS monitoring. There are 1,541 in the network conducting continuous PM10 monitoring. Ministry or the Environment also regards the TSP and LIDAR (Light Detection and Ranging; so-called, Laser Radar) data are principal indicators of DSS monitoring, so that the Ministry has also installed LIDAR systems in Japan and c o n v e y s a m o n i t o r i n g c a m p a i g n o f D S S , m a i n l y t o t r a p t h e a e r o s o l s t o b e a n a l y z e d i t s local of ingredient, in cooperation with government and National Institute

Environmental Studies (NIES). The LIDAR being important equipment for DSS monitoring, NIES has developed its original compact LIDAR system to be used in East Asia. DSS monitoring is currently carried out at 11 NIES-LIDAR Observation site in Japan, Korea and China, and the data can be viewed in real time by registered users. Japan Meteorological Agency (JMA) has 103 meteorological sites throughout Japan where DSS phenomena are monitored. The release of DSS aerosol dust forecasts started in January 2004. DSS aerosol distribution that could affect transportation and the daily acitivities of people are provided by JMA over the internet and broadcasted by weather companies.

Capacity Building –Information and Development The monitoring data of acid deposition and its effect on ecosystems in Japan in past 20 years can be obtained in CDROM. The monitoring data related to DSS can be obtained in the internet which are provided by related Ministries and institutes.


  • 1 .

    Acid deposition - Acid Deposition Monitoring Network in East Asia (EANET) The Acid Deposition Monitoring Network in East Asia (EANET), one of the first region- wide, co-operative networks to be established in the region, was established largely at the initiative of Japan. Its overarching aim is to create a common understanding of the state of the acid deposition problems in East Asia, and to thus provide useful inputs for decision making at various levels aimed at preventing or reducing adverse impacts on the environment caused by acid deposition. The ten original participating countries (China, Indonesia, Japan, Malaysia, Mongolia, Philippines, the Republic of Korea, Russia, Thailand and Vietnam) were jointed by Cambodia in 2001 and Lao PDR in

    • 2002.

      Monitoring became fully operational in 2001. The participating countries have declared to discuss the future EANET activities in order to contribute to development of international cooperative efforts for preventing or reducing adverse environmental impacts of acid deposition in past Intergovernmental


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