摘要
结合江苏高速公路路域土壤铅的监测,研究了沿线土壤的铅污染现状,分析结果表明铅污染沿高速公路呈带状分布,随着离公路距离的增大,土壤的铅污染逐渐减轻,影响范围可达100 m以上。在无铅汽油推广使用后铅在路域土壤中的累积仍在继续,但累积值降低。铅在采样土壤中的残留率达到93.8%～94.4%。
The lead of soil samples along the five expressways in Jiangsu province were analyzed,The results show that the concentration of lead decreases with the distance from the expressways,and the impacted distance can reach 100 meters away from the expressways.Although the unlead gasoline was used, the lead continues to cumulate in the soil with a minor range.The rudimental ratio of lead in soil can reach 93.8%-94.4%.
出处
《现代交通技术》
2007年第6期79-80,91,共3页
Modern Transportation Technology
关键词
无铅汽油
高速公路
土壤
铅
unlead gasoline
expressway
soil
lead
