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搜索结果: 1-4 共查到环境科学技术 Chemical composition相关记录4条 . 查询时间(0.109 秒)
In the last few decades, the utilization of coal to generate electricity was rapidly increasing. Consequently, the production of coal combustion ash (CCA) as a by-product of coal utilization as primar...
Fine aerosol samples (PM2.5) were collected daily at Tongyu, a semi-arid site in northeast China from April to June 2006, when Asian dust events occurred frequently. The concentrations of nine water-...
Aerial observation was conducted during spring (MarchApril) 2008 over the East China Sea to analyze the transport of atmospheric pollutants from East Asia and the transformation processes during tra...
Rain event samples have been collected at 6-sites in Egypt for the period between 1987 and 2002. Concentrations of major anions (Cl-, NO3- and SO4 2-) and major cations (H+, Ca++ and NH4+) were determ...

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