Characteristic differences in the chemical composition of spheroidal carbonaceous particles in Japanese and Chinese cities
Characteristic differences in the chemical composition of spheroidal carbonaceous particles in Japanese and Chinese cities
复制标题
日本和中国城市球状碳质颗粒化学成分的特征差异
DOI：
10.1007/s11270-012-1232-3
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
A
中科院分区：
文献类型：
--
作者：
Momose;A
球形碳质颗粒（SCP）是由化石燃料的高温燃烧产生的，并被排放到大气中。我们研究了表面形态和化学成分的SCP在5个工业城市的表面沉积物样品中，每个日本和中国，使用扫描电子显微镜与能量色散谱（EDS）。在中国，SCP的表面形态与化学组成之间存在一定的关系，而在日本，SCP的表面形态与化学组成之间不存在一定的关系。日本和中国的SCP的化学组成不同：日本的SCP富含S，而中国的SCP富含Ti。结果表明，EDS可用于识别东亚国家（如日本、韩国和台湾）的中国来源SCP。
Spheroidal carbonaceous particles (SCPs) are produced by the high-temperature combustion of fossil fuels and are emitted to the atmosphere. We examined the surface morphology and the chemical composition of SCPs in samples of surface sediment from five industrial cities each of Japan and China, using scanning electron microscopy with energy dispersive spectroscopy (EDS). There exists a relationship between surface morphology and the chemical composition of SCPs in China, but not for SCPs in Japan. The chemical compositions of SCPs differ between Japan and China: those in Japan are S-rich, whereas those in China are Ti-rich. The results suggest that EDS can be used to identify China-derived SCPs in East Asian countries such as Japan, South Korea, and Taiwan.