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.

[1]  B. Maher,et al.  Evaluation and application of biomagnetic monitoring of traffic-derived particulate pollution , 2009 .

[2]  Linsong Wang,et al.  Magnetic responses to traffic related contamination recorded by backfills: A case study from Tongling City, China , 2014 .

[3]  Jacqueline Hannam,et al.  Magnetic quantification of urban pollution sources in atmospheric particulate matter , 2004 .

[4]  Aldo Winkler,et al.  Biomonitoring of traffic air pollution in Rome using magnetic properties of tree leaves , 2003 .

[5]  R. Hubbard,et al.  Living near a main road and the risk of wheezing illness in children. , 2001, American journal of respiratory and critical care medicine.

[6]  Catherine Moore,et al.  Spatial variation in vehicle-derived metal pollution identified by magnetic and elemental analysis of roadside tree leaves. , 2008 .

[7]  P. Rai.  Environmental magnetic studies of particulates with special reference to biomagnetic monitoring using roadside plant leaves , 2013 .

[8]  P. Rochette,et al.  Calibration of in situ magnetic susceptibility measurements , 2004 .

[9]  M. Hosseinzadeh,et al.  Assessment of heavy metals contamination and leaching characteristics in highway side soils, Iran , 2009, Environmental monitoring and assessment.

[10]  J. Ball,et al.  An assessment of the availability of pollutant constituents on road surfaces , 1998 .

[11]  Ross A. Sutherland,et al.  Variation in Total and Extractable Elements with Distance from Roads in an Urban Watershed, Honolulu, Hawaii , 2001 .

[12]  Shenggao Lu,et al.  Study on the correlation of magnetic properties and heavy metals content in urban soils of Hangzhou City, China , 2006 .

[13]  Miriam Diamond,et al.  Assessment of lead, cadmium, and zinc contamination of roadside soils, surface films, and vegetables in Kampala City, Uganda. , 2006, Environmental research.

[14]  Frank D Gilliland,et al.  Recent evidence for adverse effects of residential proximity to traffic sources on asthma , 2008, Current opinion in pulmonary medicine.

[15]  B. Cui,et al.  Assessment of heavy metal contamination of roadside soils in Southwest China , 2009 .

[16]  R. Somashekar,et al.  Heavy Metal Contamination in Roadside Soil and Their Mobility in Relations to pH and Organic Carbon , 2002 .

[17]  B. Maher,et al.  Magnetic biomonitoring of roadside tree leaves: identification of spatial and temporal variations in vehicle-derived particulates , 1999 .

[18]  Howard Wachtel,et al.  Distance-Weighted Traffic Density in Proximity to a Home Is a Risk Factor for Leukemia and Other Childhood Cancers , 2000, Journal of the Air & Waste Management Association.

[19]  Ping Zhang,et al.  Heavy metal concentrations in roadside soils and correlation with urban traffic in Beijing, China. , 2010, Journal of hazardous materials.

[20]  J. Boyle,et al.  Detecting atmospheric pollution in surface soils using magnetic measurements: a reappraisal using an England and Wales database. , 2009, Environmental pollution.

[21]  Abigail S. Hoats,et al.  Residential Traffic and Children’s Respiratory Health , 2008, Environmental health perspectives.

[22]  Augusto Marcelli,et al.  Mobile monitoring of particulate matter: State of art and perspectives , 2016 .

[23]  N. Jordanova,et al.  Magnetic susceptibility of road deposited sediments at a national scale--relation to population size and urban pollution. , 2014, Environmental pollution.

[24]  E. Appel,et al.  Traffic-Related Pollutants in Roadside Soils of Different Countries in Europe and Asia , 2015, Water, Air, & Soil Pollution.

[25]  Yong Qin,et al.  Relationships between heavy metals and iron oxides, fulvic acids, particle size fractions in urban roadside soils , 2007 .

[26]  A. Mentler,et al.  Distribution of Road Salt Residues, Heavy Metals and Polycyclic Aromatic Hydrocarbons across a Highway-Forest Interface , 2009 .

[27]  Erwin Appel,et al.  Magnetic susceptibility mapping of roadside pollution , 1999 .

[28]  Lidia Morawska,et al.  Submicrometer and Supermicrometer Particles from Diesel Vehicle Emissions , 1998 .

[29]  U. Schwertmann,et al.  The Iron Oxides: Structure, Properties, Reactions, Occurrences and Uses , 2003 .

[30]  B. I. Olu-owolabi,et al.  Heavy metal contamination of roadside topsoil in Osogbo, Nigeria: its relationship to traffic density and proximity to highways , 2003 .

[31]  L. Pesonen,et al.  Identification of magnetic particulates in road dust accumulated on roadside snow using magnetic, geochemical and micro-morphological analyses. , 2011, Environmental pollution.

[32]  G. Rantitsch,et al.  Lithological and pedological influences on the magnetic susceptibility of soil: their consideration in magnetic pollution mapping. , 2007, The Science of the total environment.

[33]  Roeland Samson,et al.  Intra-urban spatial variation of magnetic particles: Monitoring via leaf saturation isothermal remanent magnetisation (SIRM) , 2012 .

[34]  E. Appel,et al.  Magnetic susceptibility of dust-loaded leaves as a proxy of traffic-related heavy metal pollution in Kathmandu city, Nepal , 2005 .

[35]  Zoran Ristovski,et al.  Submicrometer and Supermicrometer Particulate Emission from Spark Ignition Vehicles , 1998 .

[36]  Lei Mei,et al.  Effect of road traffic on heavy metals in road dusts and roadside soils , 2008 .

[37]  Nealson Watkins,et al.  Near-road air quality monitoring: Factors affecting network design and interpretation of data , 2009 .