Analysis of Chemical Components in Rain and Snow in the Circum-pan-Japan Sea Area

环日本海地区雨雪化学成分分析

基本信息

批准号：
01044060
负责人：
HIRAI Eiji
金额：
$ 3.46万
依托单位：
Kanazawa University
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1989
资助国家：
日本
起止时间：
1989 至无数据
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01044060/
关键词：
Circum-pan-Japan Sea Area Acid Rain and Snow Long Range Transport of Airborne Impuriteis Joint Research between Japan and Korea 日韓共同研究

项目摘要

Compared to the Pacific side of Japan, the Japan Sea side of Japan receives a relatively high amount of precipitation; especially in winter heavy snow fall is recorded. While rain on the Japan Sea side of Japan is initiated by various weather patterns, most of the snow fall results from one prevailing seasonal weather situation. This typical winter pattern has continental air masses flow in from the northwest, west, and southwest; the air masses pick up much moisture over the ocean which falls as snow as the air is forced to ascend over the coast of central Japan. This weather pattern suggests that the air masses carry impurities originating from the Japan Sea and from the Asian continent. In order to investigate the acid rain and snow phenomena in the circum-pan-Japan Sea area, the joint research were commenced between Japan and Korea.Japanese members present an analysis method to organize sequential data and to examine the simultaneous changes in the concentrations of multiple anions and the related changes in pH in rainwater during individual rainfall events. The analysis gave the background values during the prevailing winter which were higher than other weather patterns. Chemical components in the ice core sample obtained at Mizuho Station, in the Antarctica were analyzed by the ion chromatograph with a concentrator column. The results suggested the background values in the atmosphere as the ice core was made in the absence of an anthropogenic pollution source. Korean members investigated the results of acid rain monitoring in Korea. The use of tellurium as a tracer of coal combustion effluent was investigated in comparison of behaviors and concentration levels of selenium in the atmospheric samples.

与日本太平洋相比，日本海面的降水量相对较高。尤其是在冬季，记录了大雪。尽管日本海面的降雨是由各种天气模式引发的，但大部分降雪掉落是由于一种盛行的季节性天气情况而造成的。这种典型的冬季模式从西北，西部和西南部流入大陆空气质量。空气质量在海洋上吸收了很多水分，而海洋的降雪就像空气被迫上升到日本中部海岸一样。这种天气模式表明，空气质量具有源自日本海和亚洲大陆的杂质。为了调查日本海洋地区的酸雨和雪现象，日本和韩国之间进行了联合研究。日本成员提出了一种分析方法，以组织顺序数据，并检查了同时的浓度变化在个别降雨事件期间，多个阴离子以及雨水中pH的相关变化。该分析给出了在盛大的冬季期间的背景值，该值比其他天气模式高。通过浓缩柱的离子色谱仪分析了在南极洲的冰芯样品中获得的冰芯样品中的化学成分。结果表明，在没有人为污染源的情况下，将冰芯在大气中的背景值。韩国成员调查了韩国酸雨监测的结果。比较了大气样品中硒的行为和浓度水平的比较，研究了使用柜作为煤炭燃烧废水的示踪剂。