7David F S Natusch, John R Wallance. Urban Aerosol Toxicity: The Influence of Particle Size [ J ]. Science, 1974,186(4165) :695-699.
8Mahale NK, Patil SD, Sarode DB, Attarde SB. Effect of Fly Ash as an Admixture in Agriculture and the Study of Heavy Metal Accumulation in Wheat (Triticum aestivum), Mung Bean ( Vigna radiata), and Urad Beans ( Vigna mungo) [ J ]. Polish Journal of Environmental Studies, 2012,21 (6) : 1713-1719.
9Jala S, Goyal D. Fly ash as a soil ameliorant for improving crop production-a review [ J ]. Bioresource Technology, 2006,97(9) :1136-1147.
10Yunusa IAM, Loganathan P, Nissanka SP, et al. Application of coal fly ash in agriculture : A strategic perspective [ J ]. Critical Reviews In Environmental Science and Technology, 2012,42 ( 6 ) : 559-600.