Input of heavy metals into roadside soils

来源 :第四届城市、工业、交通和矿山土壤国际会议(The 4th International Conference on Sol | 被引量 : 0次 | 上传用户:ly0496lf
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  At three heavily traffic loaded motorways the bulk deposition was measured during 18 months using preserving jars made of glass (Bergerhoff method VDI 2119) which were positioned 10 cm above the soil surface.The concentration of heavy metals,Na,Ca and Fe was measured.For comparison the same jars were used in 1.5 m height as the standard method VDI 2119 requires.The distance of 1 m,2.5 m,5 m and at one site 10m from the roadside was sampled.As a reference,the distance of 100 m was sampled,too.The results show that beside heavy metals also great quantifies of other elemens caused by the road traffic are deposited in the area situated near the road.This is e.g.Na from deicing salt,whose dependency on seasons can be clearly demonstrated,but also Ca and Fe can be found in similarly high concentrations and freights.At all measuring sites a strong dependency of bulk deposition freight and distance from the roadside was found.This applies for all the substances investigated.The spatial distribution of the bulk deposition and the contaminant freights showed also clear differences between the three measuring sites,which can be attributed to the different percentages of heavy goods vehicles and main wind direction at the sites.Comparable studies up to now do not exist.One study,which had to rely on quite old data gives an estimation of contaminant input into soil and water (Hillenbrand et al.2005).It uses very old data,but shows that in Germany the road traffic generates considerable proportions of the input of Cu,Zn,Pb into waters and soils.These information now can be updated based on the new results.Further research should find answers to the question if soil material caused by splash effects from heavy rainfall can disturb the measurements and how this can be avoided.
其他文献
  The ever-increasing population of Lagos requires the continuous extraction of its natural resources to keep with the pace of urbanization.The stock of its n
会议
2006年12月20日,他被厦门市委宣传部、市公安局联合授予第二届“十佳爱民民警”称号,被市公安局授予“厦门市优秀人民警察”称号,被共青团厦门市委授予“特区建设青年突击手
法国小提琴演奏家、教育家。1774年生于法国西南部的波尔多,1830年逝世于该地。1788年至巴黎从著名小提琴家维奥蒂学习,1790年起任巴黎费多剧院管弦乐队提琴手,1794年起先后
四川省社会科学院文学所研究员,《四川文艺年鉴》主编,四川省美学会副会长,四川省评论家协会副主席,四川省现当代文学研究會副会长,炎黄文化研究会理事。曾在《文学评论》《文艺研究》《人民日报》《光明日报》等发表论文100多篇。现已承担国家社科基金规划课题2项,获得四川省哲学社会科学优秀成果奖二等奖1项,三等奖3项,省“五个一工程奖”一项。著有《三星堆的审美阐释》《以道相通的美学》《宋元明清巴蜀艺术史》《
目的探讨结构式心理干预在急性心肌梗死(AMI)患者中的应用效果。方法采用便利抽样法,选取驻马店市中心医院2016年1月—2019年10月收治的AMI患者196例为研究对象。按随机数字表法将其分为对照组(n=97)和观察组(n=99)。对照组患者行常规护理干预,观察组在对照组的基础上行结构式心理干预。采用一般自我效能感量表(GSES)、Barthel指数、SAS、SDS比较干预的效果。结果干预2个月
水芹 ,又名水英 ,楚葵等 ,系伞形花科水生宿根性草本植物。我国主要在中部、南部栽培。水芹是营养丰富的保健蔬菜 ,每 10 0g水芹含蛋白质 2 1g,脂肪 0 6g ,Ca 15 4mg、P9.8mg、Fe 2 3.3
上南花城是毗邻世博园的一个普通小区。随着世博帷幕徐徐落下,居民们的生活似乎又回到了原来的轨道上。但在花城总支书陆乾森眼里,这个原本邻里关系冷淡的商品房小区在经历世
1998年以来的近10年间,杨洁篪是中国外交界对美关系中最具发言权的重要人物之一。2001年2月,杨洁篪出使美国,成为中美两国建交以来最年轻的中国大使。2007年4月,杨洁篪被任命
2007年8月10日是我非常崇敬的粟裕大将诞辰一百周年纪念日,这位对中国共产党、对国家、对毛主席无限忠诚的无产阶级革命家,杰出的军事家、 August 10, 2007 is the centenar
目的:探讨短周期健康行为管理对慢性支气管炎患者肺功能、日常活动习惯及锻炼诱导情绪的影响。方法:采用方便取样方法,选取2019年5—10月哈尔滨医科大学附属第一医院呼吸科收