Document Type : CASE STUDY


Department of arid and desert regions management, College of Natural Resources and Desert Studies, Yazd University, Yazd, Iran


Heavy metal pollutionis one of the largest problems in the Environment and human being. In industrial and urban areas trees can give better quantifications for pollutant concentrations and atmospheric deposition than non-biological samples. In order to know ability of Fraxinus excelsior­ (Ash tree) to reduce the concentrations of heavy metals and compared with the concentration of these pollutants in falling dust urban green belt. The results showed that the concentration of Iron, Manganese, Zinc, Lead, and Cadmium in falling dust respectively were the highest to the lowest. The distance from the highway in the concentration of pollutants in leaves and bark of the Ash tree showed significant results. Also, the effect of pollutant in the leaf of this plant was higher than that of bark, except for Cobalt. Concentrations of Zinc, Cobalt, and Nickel, increased with increasing distance from the road due to multi-directional winds and the presence of other contaminants. The Pearson correlation analysis between heavy metals found in the falling dust and Ash tree showed that the input and controlling factors of these elements in the Ash tree are probably the same as the dust. The results showed that the Fraxinus excelsior leaf with the amount of accumulation index of 1607 mg/kg has more ability to simultaneously absorb different metals. As a result, since this green belt surrounds Yazd urban area, it is hoped that a significant amount of heavy metals will be absorbed by these trees.


Main Subjects

Abbasi, M.N.; Tufail, M.; Chaudhry, MM., (2013). Assessment of trace elements in suspended dust along the Murree Highway near capital city of Pakistan. World Appl. Sci .J. 21 (9): 1266–1275 (10 pages).

Abbaspour, M.; Javid, A.H., Saeidi, S., (2014). The impact of urban parks on PM10 suspended particles through using GIS software. J. Environ. Sci. Technol., 16(1): 1-12 (12 pages).

Addo, M.A.; Darko, E.O.; Gordon, C.; Nyarko. B.J.B.; Gbadago, J.K., (2012). Heavy Metal Concentrations in Road Deposited Dust at Ketu-South District. Ghana, Int. J. Environ. Sci. Tech, 2 (1): 28-39 ­(12 pages).

Amato, F.; Pandolfi, M.; Moreno, T.; Furger, M.; Pey, J.; Alastuey, A.; Bukowiecki, N.; Prevot, A.S.H.; Baltensperger, U.; Querol, X., (2011). Sources and variability of inhalable road dust particles in three European cities. Atmos. Environ. 45: 6777–6787(11 pages).

Azeem Jadoon,W.; Khpalwak, W.;·Garven Chidya, R.CH.;·Abdel‑Dayem, Sh.M.;·Takeda, K.; Makhdoom, M.A.; Sakugawa, H., (2018). Evaluation of levels, sources and health hazards of road‑dust associated toxic metals in Jalalabad and Kabul cities Afghanistan. Environ. Contam. Toxic, 74: 32–45 (14 pages).

Barona, C.O., (2015). Adopting public values and climate change adaptation strategies in urban forest management: A review and analysis of the relevant literature. J. Environ. Manage., 164: 215-221 (7 pages).

Cao, H.; Liu, J.; Wang, G.; Yang, G.; Luo, L., (2015). Identification of sand and dust storm source areas in Iran. J. Arid Land, 7: 567-578 (11 pages).

Charlesworth, S.; Everett, M.; McCarthy, R.; Ordooez, A., de Miguel, E., (2003). A comparative study of heavy metal concentration and distribution in deposited street dusts in a large and a small urban area: Birmingham and Coventry, West Midlands, UK. Environ. Int., 29: 563–573 (11 pages).

Dadea, C.; Bacchiocchi, S.C.; Rocca, N.L.; Mimmo, T.; Russo, A.; Zerbe, S., (2016). Heavy metal accumulation in urban soils and deciduous trees in the City of Bolzano, N Italy. Waldökologie, Landschaftsforschung und Naturschutz. Forest Ecol. Landsc. Res. Nat. Protect., (15): 35-42 (8 pages).

Dobrowolska, D.; Hein, S.; Oosterbaan, A.; Wagner, S.; Clark, J.; Skovsgaard, J.P., (2011). A review of European ash (Fraxinus excelsior L.) implications for silviculture. Forestry, 84 (2): 133–148 (16 pages).

Eqani, S.A.M.A.S.; Kanwal, A.; Bhowmik, A.K.; Sohail, M.; Ullah, R.; Ali, S.M., Alamdar, A.; Ali, N.; Fasola, M.; Shen, H., (2016). Spatial distribution of dust–bound trace elements in Pakistan and their implications for human exposure, Environ Pollut, 213: 213–222 (10 pages).

Facchinelli, A.; Sacchi, E.; Mallen, L., (2001). Multivariate statistical and GIS-based approach to identify heavy metal sources in soils. Environ. Pollut., 114 (3): 313-324 (12 pages).

Faiz, Y.; Tufail, M.; Javed, M.T.; Chaudhry, M.M.; (2009). Road dust pollution of Cd, Cu, Ni, Pb and Zn along Islamabad Expressway, Pakistan. Microchem. J, 92: 186–192 (7 pages).

Fathizad, H.; Hakimzadeh Ardakani; M.A.; Taghizadeh Mehrjardi, R.; Sodaiezadeh. H., (2018). Evaluating desertification using remote sensing technique and object-oriented classification algorithm in the Iranian central desert. J. Afr. Earth Sci., 145: 115-130 (16 pages).

Gossens, D.; Rajort, J.L., (2008). Techniques to measure the dry aeolian deposition of dust in arid and semi-arid landscapes: a comparative study in West Niger. Earth Surface Processes and Landforms: J. Brit. Geomor. Res. Group, 33(2): 178-195. (18 pages).

Hakimzadeh, M. A., (2014). Assessment of desertification risk in agricultural land in south of Iran. Int. J. Biologi. Res. 2(3): 669-681(13 pages).

Hakimzadeh Ardakani, M.A.,Vahdati, A.R., (2018). Monitoring of organic matter and soil salinity by using IRS - LissIII satellite data in the Harat plain, of Yazd province, J. Desert, 23(1): 1-8 (8 pages).

Hasnvand, H.; Ghasemi A.; Soilgi, E.; Pazhohan, I., (2018). The distance from road effects on heavy metals accumulation in soil and leaves of Persian oak trees (Quercus brantii) in Aleshtar–Khorramabad highway. J. of Forest Res. Develop, 4(1): 29-41 (13 pages).

Hu, X.; Zhang, Y.; Ding, Z.; Wang, T.; Lian, H.; Sun, Y.; Wu, J., (2012). Bioaccessibility and health risk of arsenic and heavy metals (Cd, Co, Cr, Cu, Ni, Pb, Zn and Mn) in TSP and PM2.5 in Nanjing, China. Atmos Environ, 57: 146–152 (7 pages).

Iqbal, M.; Shafiq, M.; Zaidi, S.; Athar, M., (2015). Effect of automobile pollution on chlorophyll content of roadside urban trees. Global J. Environ. Sci. Manage., 1(4): 283-296 (14 pages).

Kerr, G.; Cahalan, C., (2004). A review of site factors affecting the early growth of ash (Fraxinus excelsior L.). Forest Ecolo. Manage, 188(1), 225–234 (10 pages).

Klute, A., (1986). Methods of soil analysis. Part 1: Physical and microbiological methods, second edition. American society of agronomy. Inc. soil science society of America, Inc. publisher Madison, Wisconsin. (1188 pages).

Latif, M.T.; Othman, M.R.; Kim, C.L.; Murayadi, S.A.; Sahaimi, K.N.A., (2009). Composition of household dust in semi-urban areas in Malaysia. Indoor Built Environ, 18: 155–161 (7 pages).

Liu, Y.J.; Zhu, Y.G.; Ding, H., (2007). Lead and cadmium in leaves of deciduous trees in Beijing, China: Development of a metal accumulation index (MAI). Environ. Pollut, 145: 387-390 (4 pages).

Liu, L.; Zhang, X.; Zhong, T., (2016). Pollution and health risk assessment of heavy metals in urban soil in China. Hum and ecological risk assessment. Int. J., 22 (2): 424-434 (11 pages).

Lu, X.; Wang, L.; Li, L.Y.; Lei, K.; Huang, L.; Kang, D., (2010). Multivariate statistical analysis of heavy metals in street dust of Baoji, NW China. J. hazard. Mater, 173 (1-3): 744-749 (6 pages).

Lyu, Y.; Qu, Z, Liu, L.; Guo, L.; Yang, Y.; Hu, X.; Xiong, Y.; Zhang, G.; Zhao, M.; Liang, B.; Dai, J.; Zuo, X.; Jia, Q.; Zheng, H.; Han, X.; Zhao, S.; Liu, Q., (2017 ). Characterization of dust fall in rural and urban sites during three dust storms in northern China, 2010. Aeolian Res., 28: 29-37 (9 pages).

Maisto, G.; Alfani, A.; Baldantoni, D.; De-Marco, A.; De-Santo, A.V., (2004). Trace metals in the soil and in Quercus ilex L. leaves at anthropic and remote sites of the Campania Region of Italy. Geoderm, 122 (2-4): 269-279 (11 pages).

Mohmand, J.; Eqani, S.A.M.A.S.; Fasola, M.; Alamdar, A.; Mustafa, I.; Ali, N.; Liu, L.; Peng, S.; Shen, H., (2015). Human exposure to toxic metals via contaminated dust: Bio-accumulation trends and their potential risk estimation. Chemo, 132: 142–151 (10 pages).

Okorie, A.; Entwistle, J.; Dean, J.R., (2012). Estimation of daily intake of potentially toxic elements from urban street dust and the role of oral bio accessibility testing. Chemo, 86 (5): 460–467 (8 pages).

Peng, C.; Cai, Y.; Wang, T., (2016). Regional probabilistic risk assessment of heavy metals in different environmental media and land uses: An urbanization-affected drinking water supply area. Sci. Rep-UK., 15 (6): 37-45 (9 pages).

Rasmussen, P.E., Subramanian, S.K., Jessiman, B.J., (2001). A multi-element profile of house dust in relation to exterior dust and soils in the city of Ottawa, Canada. Sci. Total Environ., 267 (1-3): 125–140 (16 pages).

Sai Kachout, S.; Ben mansoura, A.; Ennajah, A.; Leclerc, J.C.; Ouerghi, Z.; Karray Bouraoui, N., (2015). Effects of metal toxicity on growth and pigment contents of annual halophyte (Atriplex hortensis and Atriplex rosea). Int. J. Environ. Sci, 9 (2): 613-620 (8 pages).

Sharma, V.K., (1999). Development of air quality indices from Mumbai, India. Int. J. Environ. Pollut, 11 (2): 141-146 (6 pages).

Skrbic, B.; Milovaca, S.; Matavulj, M., (2012). Multi element profiles of soil, road dust, tree bark and wood-rotten fungi collected at various distances from high-frequency road in urban area. Ecol. Indicators, 13 (1): 168–177 (10 pages).

Soltani, N.; Keshavarzi, B.; Moore, F.; Tavakol, T.; Lahijanzadeh, RA.; Jaafarzadeh, N.; Kermani, M., (2015). Ecological and human health hazards of heavy metals and polycyclic aromatic hydrocarbons PAHs) in road dust of Isfahan metropolis, Iran. Sci. Total. Environ, 505: 712–723 (12 pages).

Wan, D.; Yang, G., Yang, J.; and Zhan, C.; (2018). Ecological Risks and Spatial Distributions of Heavy Metals in Beijing Atmospheric Dust. Pol. J. Environ. Stud., 27 (2): 881–887 (7 pages).

Wei, B.; Jiang, F, Li, X.; Mu, S., (2009). Spatial distribution and contamination assessment of heavy metals in urban road dusts from Urumqi, NW China. Microchem, 93 (2): 147–152 (6 pages).

Werkenthin, M.; Kluge, B.; Wessolek, G., (2014). Metals in European roadside soils and soil solution, A review. Environ. Pollut, 189: 98-110 (13 pages).

Zhang, M.K.; Wang, H., (2009). Concentrations and chemical forms of potentially toxic metals in road-deposited sediments from different zones of Hangzhou, China. J Environ Sci, 21: 625–631(7 pages).

Zhao, Z.; Ball, J.; Hazelton, P., (2018). Application of statistical inference for analysis of heavy metals variability in roadside soil. Water. Air. Soil Poll., 229 (23): 1-12 (12 pages).

Zheng, N.; Liu, J.; Wang, Q.; Liang, Z., (2010). Health risk assessment of heavy metal exposure to street dust in the zinc smelting district, Northeast of China. Sci. Total. Environ., 408 (4): 726–733 (8 pages).

Zhu, W.; Bian, B.; Li, L., (2008). Heavy metal contamination of road-deposited sediments in a medium size city of China. Environ. Monit. Assess, 147 (1-3): 171–181 (11 pages).


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