The distribution process of traffic contamination on roadside surface and the influence of meteorological conditions revealed by magnetic monitoring.
With the increasing number of vehicles and the development of transport systems, traffic contamination has become an important source of current environmental pollution. The study of roadside distribution patterns of traffic-related contaminants and its influencing factors can contribute to assess the scope and distribution process of the contaminants. A large number of works confirmed that magnetic methods which are fast and economic can be used to indicate the traffic-related pollution. Based on the previous study, we installed two new monitoring sites and conducted repeated in situ measurements of magnetic susceptibility (κ). From these data, we calculated the accumulation amount and accumulation rate of κ to reveal the detailed distribution process of traffic contaminants on the roadside surface over time. In addition, we collected daily meteorological data (rainfall and wind direction) and conducted a correlation analysis between the accumulation rate of κ and the meteorological data. The results show that the accumulation rate of traffic contaminants on the roadside surface is lower in periods of higher rainfall, and that the winds influence the distribution pattern of contaminants through changing their transmission path. The results confirm that magnetic methods can be used to reveal the detailed distribution process of traffic-related contaminants and its influencing factors.
Institute of Geography, Key Laboratory for Subtropical Mountain Ecology (Ministry of Science and Technology and Fujian Province Funded), Fujian Normal University, Fuzhou, 350007, China. mamingming159@163.com.|State key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China. mamingming159@163.com.
Mingming
M
Ma
State key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China. hu_shouyun@hotmail.com.
Shouyun
S
Hu
State key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China.
Longsheng
L
Wang
Department of Geosciences, University of Tübingen, 72074, Tübingen, Germany.
Erwin
E
Appel
D002681:China; D004784:Environmental Monitoring / Q000379:methods*; D004787:Environmental Pollution; D008280:Magnetics; D001335:Vehicle Emissions / Q000032:analysis; D014887:Weather; D014919:Wind
D001335:Vehicle Emissions
Magnetic susceptibility; Meteorological conditions; Monitoring; Traffic contamination