Simple SO_x, No_x Measurement for Acid Rain in South-East Asia

“东南亚酸雨的简单SO_X、NO_X测量”的研究是由具有代表性的s.s。从1996年到1998年在德岛大学任教。考察组先后赴泰国、马来西亚、新加坡、印尼、新西兰等国考察大气污染物（二氧化硫、二氧化氮）和雨水，主要使用被动采样器、分光光度计、离子色谱仪和酸碱度计。主要观察点有曼谷、清迈、普吉岛、吉隆坡、槟城、马六甲、关丹、雅加达、新加坡、基督教堂和奥克兰等。访问的研究机构包括环境研究与培训中心、竹隆功大学、清迈大学、亚洲理工学院、马来西亚博特拉大学、马来西亚气象局、技术评估与应用署、EMC环境管理中心、南洋理工大学、新加坡国立大学、环境部和奥克兰大学等。池田教授在德岛大学工学院主持了“环境测量与评价国际论坛”的国际研讨会，邀请了朱拉隆功大学的p.t asakorn博士就泰国的环境问题发表演讲，并发表了许多环境研究论文。结果表明，东南亚各国均为重度空气污染（二氧化硫、二氧化氮、SPM），雨水pH值通常为ca.4.2，但已由ca.6转为ca.4.2。1997年印度尼西亚和马来西亚大规模生物质燃烧后，表明SPM可以中和酸雨。

The study of "Simple SO_X, NO_X Measurement for Acid Rain in South-East Asia" was performed by the research group of the representative Prof.S.lkeda(The University of Tokushima) from 1996 to 1998.The research group visited Thailand, Malaysia, Singapore, Indonisia and New Zealand to investigate air pollutant (S0_2, N0_2) and rain water, using mainly passive samplers, spectro-photometer, ion chromatrograph and pH meters. The main observation sites were Bangkok, Chiangmai, Phuket, Kuala Lumpur, Penang, Malacca, Kuantan, Jakarta, Singapore, Christ Church and Auckland etc. The research institutes visited were Environmental Research and Training Centre, Chulalong-korn University, Chiangmai University, Asian Institute of Technology, University Putra Malaysia, Malaysian Meteorological service, BPPT(Agency for the Assessement and Application of Technology), EMC(Environmental Management Centre), Nanyang Technological University, National University of Sinapore, Ministry of the Environment and University of Auckland etc. Prof. Ikeda presided an international symposium "International forum on the Measurement and Evaluation of Environment" at the University of Tokushima, Faculty of Engineering , inviting Dr.P.Tasakorn from Chulalongkorn University in order to have a speech on the environmental problems in Thailand, and many environmental papers studied were presented.It was found that every country in South-East Asia suffered from heavy air pollution (S0_2, N0_2, SPM) and the pH of rain water usually indicated ca.4.2, but it changed to ca.6.O after the large scale biomass burning of Indonesia and Malaysia 1997, suggesting the neutralization of acid rain with SPM.