JEP  Vol.6 No.11 , November 2015
Chemometric Evaluation of the Heavy Metals in Urban Soil of Fallujah City, Iraq
Abstract: To evaluate the concentrations of heavy metals and identification of their sources, 20 composite soil samples were collected randomly in Fallujah city, Iraq. To assess the pollution level, we used the soil metal index (SMI) and enrichment factor. We investigated the sources of heavy metal using the chemometric techniques such as correlation analysis, principal component analysis (PCA) and cluster analysis (CA). The concentrations of Pb and Co have a normal distribution in soil of the study area. Zn and Cd have an approximately normal distribution, and Ni, Cu, and Cr have a non-normal distribution. Our results revealed that the urban soils in Fallujah city were unpolluted by heavy metals and showed a significant to extremely high enrichments of heavy metals controlled by anthropogenic activities. The moderate to strong positive correlations among Cd, Co, Cu, Cr, Ni, Pb, and Zn suggest that these metals have common sources. The chemometric techniques identify that the source of Cu, Co and Pb is controlled by lithogenic origin and that the source of Cr, Ni and Cd is controlled by mixed sources (lithogenic and anthropogenic).
Cite this paper: Salah, E. , Turki, A. and Mahal, S. (2015) Chemometric Evaluation of the Heavy Metals in Urban Soil of Fallujah City, Iraq. Journal of Environmental Protection, 6, 1279-1292. doi: 10.4236/jep.2015.611112.

[1]   Bockheim, J. (1974) Nature and Properties of Highly Distributed Urban Soils, Philadelphia, Pennsylvania. Paper Presented before Div. S-5, Soil Science Society of America, Chicago.

[2]   Kabata-Pendias, A. and Pendias, H. (1992) Trace Elements in Soils and Plants. 2nd Edition, CRC Press, Boca Raton.

[3]   Tiller, K. (1992) Urban Soil Contamination in Australia. Australia Journal of Soil Research, 30, 937-957.

[4]   Bretzel, F. and Calderisi, M. (2006) Metal Contamination in Urban Soils of Coastal Tuscany (Italy). Environmental Monitoring and Assessment, 118, 319-335.

[5]   Callender, E. and Rice, K. (2000) The Urban Environment Gradient: Anthropogenic Influences on the Spatial and Temporal Distributions of Lead and Zinc in sediments. Environmental Science and Technology, 34, 232-238.

[6]   Grzebisz, W., Ciesla, L., Komisarek, J. and Potarzycki, J. (2002) Geochemical Assessment of Heavy Metals Pollution of Urban Soils. Polish Journal of Environmental Studies, 11, 493-499.

[7]   Bacon, J., Berrow, M. and Shand, C. (1992) Isotopic Composition as an Indicator of Origin of Lead Accumulations in Surface Soils. International Journal of Environmental Analytical Chemistry, 46, 71-76.

[8]   Skrbic, B. and Durisic-Mladenovic, N. (2010) Chemometric Interpretation of Heavy Metal Patterns in Soils Worldwide. Chemosphere, 80, 1360-1369.

[9]   Vidovic, M., Sadibasic, A., Cupic, S. and Lausevic, M. (2005) Cd and Zn in Atmospheric Deposit, Soil, Wheat and Milk. Environmental Research, 97, 26-31.

[10]   Carrizales, L., Razo, I., Tellez-Hernandez, J., Torres-Nerio, R. Batres, L., Cubillas, A. and Diaz-Barriga, F. (2006) Exposure to Arsenic and Lead of Children Living Near a Copper-Smelter in San Luis Potosi, Mexico: Importance of Soil Contamination for Exposure of Children. Environmental research, 101, 1-10.

[11]   De Miguel, E., Iribarren, I., Chacon, E., Ordonez, A. and Chalesworth, S. (2006) Risk-Based Evaluation of Exposure of Children to Trace Elements in Playgrounds in Madrid (Spain). Chemosphere, 66, 505-513.

[12]   Manata, D., Angelone, M., Bellanca, A., Neri, R. and Sprovieri, M. (2002) Heavy Metals in Urban Soils: A Case Study from the City of Palermo (Sicily). Science of the Total Environment, 300, 229-243.

[13]   Maas, S., Scheifler, R., Benslama, M., Crini, N., Lucot, E., Brahmia, Z., Benyacoub, S. and Giraudoux, P. (2010) Spatial Distribution of Heavy Metal Concentrations in Urban, Suburban and Agricultural Soils in a Mediterranean City of Algeria. Environmental Pollution, 158, 2294-2301.

[14]   Wan, S. and Qin, Y. (2007) Some Characteristics of the Distribution of Heavy Metals in Urban Topsoil of Xuzhou, China. Environmental Geochemistry and Health, 29, 11-19.

[15]   Tume, P., Bech, J., Sepulveda, B., Tume, L. and Bech, J. (2008) Concentrations of Heavy Metals in Urban Soils of Talcahuano (Chile): A Preliminary Study. Environmental Monitoring and Assessment, 140, 91-98.

[16]   Ali, S. and Malik, R. (2011) Spatial Distribution of Metals in Top Soils of Islamabad City, Pakistan. Environmental Monitoring and Assessment, 172, 1-16.

[17]   Guo, G., Wu, F., Xie, F. and Zhang, R. (2012) Spatial Distribution and Pollution Assessment of Heavy Metals in Urban Soils from Southwest China. Journal of Environmental Sciences, 24, 410-418.

[18]   Li, X., Liu, L., Wang, Y., Luo, G., Chen, X., Yang, X., Hall, M., Guo, R., Wang, H., Cui, J. and He, X. (2013) Heavy Metal Contamination of Urban Soil in an Old Industrial City (Shenyang) in Northeast China. Geoderma, 192, 50-58.

[19]   Cai, Q., Mo, C., Li, H., Lü, H., Zeng, Q., Li, Y. and Wu, X. (2013) Heavy Metal Contamination of Urban Soils and Dusts in Guangzhou, South China. Environmental Monitoring and Assessment, 185, 1095-1106.

[20]   Simon, E., Vidic, A., Braun, M., Fábián, I. and Tóthmérész, B. (2013) Trace Element Concentrations in Soils along Urbanization Gradients in the City of Wien, Austria. Environmental Science & Pollution Research, 20, 917-924.

[21]   Al Obaidy, A. and Al Mashhadi, A. (2013) Heavy Metal Contaminations in Urban Soil within Baghdad City, Iraq. Journal of Environmental Protection, 4, 72-82.

[22]   Salah, E., Turki, A. and Noori, S. (2013) Heavy Metals Concentration in Urban Soils of Fallujah City, Iraq. Journal of Environment and Earth Science, 3, 100-112.

[23]   Krami, L., Amiri, F., Sefiyanian, A., Shariff, A., Tabatabaie, T. and Pradhan, B. (2013) Spatial Patterns of Heavy Metals in Soil under Different Geological Structures and Land Uses for Assessing Metal Enrichments. Environmental Monitoring and Assessment, 185, 9871-9888.

[24]   Hani, A., Sinaei, N. and Gholami, A. (2014) Spatial Variability of Heavy Metals in the Soils of Ahwaz Using Geostatistical Methods. International Journal of Environmental Science and Development, 5, 294-298.

[25]   Mostert, M., Ayoko, G. and Kokot, S. (2010). Application of Chemometrics to Analysis of Soil Pollutants. Trends in Analytical Chemistry, 29, 430-445.

[26]   Ali, H. (2007) Heavy Metals Concentrations in Surface Soils of the Haweja Area South Western of Kirkuk, Iraq. Journal of Kirkuk University-Scientific Studies, 2, 35-48.

[27]   Zhou, J., Ma, D., Pan, J., Nie, W. and Wu, K. (2008) Application of Multivariate Statistical Approach to Identify Heavy Metals Sources in Sediments and Waters: A Case Study in Yangzhong, China. Environmental Geology, 54, 373-380.

[28]   Kribek, B., Majer, V., Veselovsky, F. and Nyambe, I. (2010) Discrimination of Lithologenic and Anthropogenic Sources of Metals and Sulphur in Soils of the Central-Northern Part of the Zambian Copperbelt Mining District: A Topsoil vs. Subsurface Soil Concept. Journal of geochemical Exploration, 104, 69-86.

[29]   Moura, M., Moita, G. and Neto, J. (2010) Analysis and Assessment of Heavy Metals in Urban Surface Soils of Teresina, Piauí State, Brazil: A Study Based on Multivariate Analysis. Comunicata Scientia, 1, 120-127.

[30]   Yaylah-Abanuz, G. (2011) Heavy Metal Contamination of Surface Soil around Gebze Industrial Area. Turkey. Microchemistry Journal, 99, 82-92.

[31]   Bingöl, D., Ay, ü., Bozbas, S. and Uzgören, N. (2013) Chemometric Evaluation of the Heavy Metals Distribution in Waters from Dilvasi Region in Kocaeli, Turkey. Marine Pollution Bulletin, 68, 134-139.

[32]   Li, X. and Feng, L. (2012) Geostatistical Analysis and Fractionation of Heavy Metals in Urban Soils from Industrial District in Weinan, NW China. Environmental Earth Sciences, 67, 2129-2140.

[33]   Soffianian, A., Madani, E. and Arabi, M. (2014) Risk Assessment of Heavy Metal Soil Pollution through Principal Components Analysis and False Color Composition in Hamadan Province, Iran. Environmental System Research, 3, 3.

[34]   Salah, E., Zaidan, T. and Al-Rawi, A. (2012) Assessment of Heavy Metals Pollution in the Sediments of Euphrates river, Iraq. Journal of Water Resource and Protection, 4, 1009-1023.

[35]   Dutch Standards (2000) Circular on Target Values and Intervention Values for Remediation. Dutch Ministry of Housing, Spatial Planning and Environment, Netherlands Government Gazette.

[36]   Feng, H., Han, X., Zhang, W. and Yu, L. (2004) A Preliminary Study of Heavy Metal Contamination in Yangtze River Intertidal Zone Due to Urbanization. Marine Pollution Bulletin, 49, 910-915.

[37]   Cato, I. (1977) Recent Sedimentological and Geochemical Conditions and Pollution Problems in Two Marine Areas in Southwestern Sweden. Striae, 6, 1-150.

[38]   Choi, K., Kim, S., Hong, G. and Chon, H. (2012) Distribution of Heavy Metals in the Sediments of South Korean Harbors. Environmental Geochemical Health, 34, 71-82.

[39]   Sinex, S. and Helz, G. (1981) Regional Geochemistry of Trace Elements in Chesapeak Bay Sediments. Environmental Geology, 3, 315-323.

[40]   Bowen, H. (1979) Environmental Chemistry of the Elements. Academic Press, London.

[41]   Tippie, V. (1984) An Environmental Characterization of Chesa-Peak Bay and a Framework for Action. In: Kennedy, V., Ed., The Estuary as a Filter, Academic Press, New York, 467-487.

[42]   Mmolawa, K., Likuku, A. and Gaboutloeloe, G. (2011) Assessment of Heavy Metal Pollution in Soils along Roadside Areas in Botswana. African Journal of Environmental Science and Technology, 5, 186-196.

[43]   Zhou, F., Guo, H. and Liu, L. (2007) Quantitative Identification and Source Apportionment of Anthropogenic Heavy Metals in Marine Sediments of Hong Kong. Environmental Geology, 53, 295-305.

[44]   Chen, T., Wang, J., Zhou, H. and Wong, M. (1996) Assessment of Trace Metal Distribution and Contamination in Surface Soils of Hong Kong. Environmental Pollution, 96, 61-68.

[45]   Carlosena, A., Andrade, J. and Prada, D. (1998) Searching For Heavy Metals Grouping Roadside Soils as a Function of Motorized Traffic Influence. Talanta, 47, 753-767.

[46]   Kokot, S., Grigg, M., Panayiotou, H. and Phuong, T. (1999) Data Interpretation by Some Common Chemometrics Methods. Electroanalysis, 10, 1081-1086.<1081::AID-ELAN1081>3.0.CO;2-X

[47]   Chen, T., Zheng, Y., Lei, M., Huang, Z., Wu, H., Chen, H., Fan, K., Yu, K., Wu, X. and Tian, Q. (2005) Assessment of Heavy Metal Pollution in Surface Soils of Urban Parks in Beijing, China. Chemosphere, 60, 542-551.

[48]   Heinrich, A. (2007) The Application of Multivariate Statistical Methods for Evaluation of Soil Profiles. Journal of Soil and Sediments, 7, 45-52.

[49]   Abdi, H. (2003) Multivariate Analysis. In: Lewis-Beck, M., Bryman, A. and Futing, T., Eds., Encyclopedia of Social Sciences Research Methods, Sage, Thousand Oaks.

[50]   Acosta, J., Faz, A., Martinez-Martinez, S., Zomoza, R., Carmona, D. and Kabas, S. (2011) Multivariate Statistical and GIS-Based Approach to Evaluate Heavy Metals Behavior in Mine Sites for Future Reclamation. Journal of Geochemical Exploration, 109, 8-17.

[51]   Bini, C., Sartori, G., Wahsha, M. and Fontana, S. (2011) Background Levels of Trace Elements and Soil Geochemistry at Regional Level in NE Italy. Journal of Geochemical Exploration, 109, 125-133.

[52]   Boruvka, L., Vacek, O. and Jehlicka, J. (2005) Principal Component Analysis as a Tool to Indicate the Origin of Potentially Toxic Elements in Soils. Geoderma, 128, 289-300.

[53]   McGarial, K., Cushman, S. and Stafford, S. (2000) Multivariate Statistics for Wildlife and Ecology Research. Springer, New York.

[54]   Mckenna, G. (2003) An Enhanced Cluster Analysis Program with Bootstrap Significant Testing for Ecological Community Analysis. Environmental Modeling and Software, 18, 205-220.

[55]   Salah, E., Turki, A. and Al-Othman, E. (2012) Assessment of Water Quality of Euphrates River Using Cluster Analysis. Journal of Environmental Protection, 3, 1269-1273.

[56]   Stat. Soft. Inc. (2007) STATISTICA (Data Analysis Software System) Version 8.

[57]   Mrvic, V., Kostic-Kravljanac, L., Sikiric, B., Perovic, V. and Niloloski, M. (2011) Pedogeochemical Mapping and Background Limit of Trace Elements in Soils of Branicevo Province (Serbia). Journal of Geochemical Exploration, 109, 18-25.

[58]   Pam, E., Akiti, T., Osae, S., Ganyaglo, S. and Gibrilla, A. (2011) Multivariate Cluster Analysis of Some Major and Trace Elements Distribution in an Unsaturated Zone Profile, Densu River Basin, Ghana. African Journal of Environmental Science and Technology, 5, 155-167.

[59]   Gibson, M. and Farmer, J. (1986) Multi-Step Chemical Extraction of Heavy Metals from Urban Soils. Environmental Pollution, 11, 117-135.

[60]   Thornton, I. (1991) Metal Contamination of Soils in Urban Areas. In: Bullock, P. and Gregory, P.J., Eds., Soils in the Urban Environment, Blackwell, Oxford, 47-75.

[61]   Smith, K. and Paterson, J. (1995) Manganese and Cobalt. In: Alloway, B.J., Ed., Heavy Metals in Soils, Champan & Hall, Glasgow, 224-244.

[62]   Alloway, B.J. (2012) Sources of Heavy Metals and Metalloids in Soils. In: Alloway. B.J., Ed., Heavy Metals in Soils: Trace Metals and Metalloids in Soils and Their Bioavailability, Environmental Pollution, Vol. 22, Springer, Dordrecht, 11-50.

[63]   Zheng, Y., Cheng, H., Cheng, T., Zheng, G., Wu, H. and Zhou, J. (2003) Spatial Distribution Patterns of Cr and Ni in Soils of Beijing. Quaternary Sciences, 23, 436-445.

[64]   Zheng, Y., Cheng, T., Zheng, G., Huange, Z. and Lou, J. (2005) Chromium and Nickel Accumulations in Soils under Different Land Use in Beijing municipality. Resources Science, 27, 162-166.

[65]   Facchinelli, A., Sacchi, E. and Mallen, L. (2001) Multivariate Statistical and GIS-Based Approach to Identify Heavy Metal Sources in Soils. Environmental Pollution, 114, 313-324.

[66]   Wang, X., Qin, Y. and Sang, S. (2005) Accumulation and Sources of Heavy Metals in Urban Topsoils: A Case Study from City of Xuzhou, China. Environmental Geology, 48, 101-107.