烟草科技2018，Vol.51Issue(3)：7-14,8.
水泥厂对周边环境及烟叶重金属积累的影响
Effects of cement production on surrounding environment and heavy metal accumulation in tobacco leaves
摘要
Abstract
To clarify the influences of cement production on heavy metal contents in tobacco leaves and surrounding environment,two cement plants located in Huanghuai Plain and Southwest mountainous area were studied. The variations of deposition fluxes of heavy metals in the surrounding atmosphere and the heavy metal contents in surrounding farmland soil and tobacco leaves along with the distance from the cement plants were analyzed. The results showed that the effect of cement production on heavy metal contents in surrounding farmland soil was relatively light. The deposition fluxes of heavy metals in the atmosphere raised at 1.5-3.5 km and 1.0 km away from the cement plants in Huanghuai Plain and Southwest mountainous area,respectively. The maximum/minimum ratios of Pb,Cd,As,Cr and Ni deposition fluxes in the atmosphere were in the range of 1.7-2.8. Comparing with the upper tobacco leaves grown in the upwind direction,the highest contents of Pb,Cd, As,Cr and Ni in upper tobacco leaves in the downwind direction of the cement plant in Huanghuai Plain were 2.26,3.09,2.44,3.72 and 1.78 times,respectively; and the peaks of heavy metal contents in upper tobacco leaves were at 1.0-4.0 km downwind of the cement plant. However,in places surrounding the cement plant in Southwest area,the maximum contents of Pb,Cd,As,Cr and Ni were 1.34,1.19,2.32,3.41 and 4.66 times of the minimum in upper leaves,respectively; and the peaks were at 1.0-1.5 km away from the cement plant. In conclusion,tobacco is a sensitive indicator of atmospheric environment,and the influences of cement plant on plain at monsoon region are larger than those on mountainous area.关键词
烟叶/水泥厂/大气沉降/重金属Key words
Tobacco leaf/Cement plant/Atmospheric deposition/Heavy metal分类
农业科技引用本文复制引用
王爱国,张仕祥,戴华鑫,夏海乾,王广山,张晓娟,张艳玲..水泥厂对周边环境及烟叶重金属积累的影响[J].烟草科技,2018,51(3):7-14,8.基金项目
中国烟草总公司科技重点项目"大气沉降对烟叶重金属的影响研究"(110201402019). （110201402019）
