厦门春季气溶胶特征初探

1993年春季对厦门市大气气溶胶进行了研究,其中包括对3种不同粒径的气溶胶质量浓度?气溶胶元素浓度?气溶胶离子浓度?气溶胶酸度和酸化缓冲能力的研究?结果表明:厦门大气气溶胶质量浓度接近于国家一级标准,细粒子的气溶胶的贡献较高;气溶胶中元素含量较高的为Ca,Al,Fe和S等;在厦门地区气溶胶中NH+₄和SO2-₄主要分布在细粒子中,Ca2+和Mg2+则多分布在粗粒子中,并且其值远小于华南地区;气溶胶中细粒子的酸性大于粗粒子,且酸化缓冲能力远低于粗粒子。 

Preliminary Study on the Aerosol Characteristics of Xiamen in Spring

The aerosol characteristics of Xiamen, including mass concentration, element concentration ,ion concentration, acidity and acidification-buffering capacity of aerosol for three kinds of particle diameter, was studied in spring of 1993. The results show that the mass concentration of aerosol in Xiamen is close to Class I of National Air Quality Standards, and the fine particle plays an important role； the content of Ca, Al, Fe, and S is high in aerosol; the distribution of NH+4 and SO2-₄ is mainly in fine particle, Ca2+ and Mg2+ mainly exist in coarse particle, and their concentrations are lower than those in Southern China ； for the acidity of aerosol, the fine particle's is higher than the coarse particle's, but for the acidification-buffering capacity, the fine particle's is much lower than the coarse particle's.