The Orontes river basin can be considered one of the most polluted areas in the eastern Mediterranean due to the intense urban occupation, intensive agriculture irrigation, and large numbers of different industries activities. The objective of the study was to assess the extent and severity of heavy metal pollution of arable soils of Hama floodplain, in order to provide a general insight vision of pollution status in this intensive agricultural production area. The present and spatial distribution of four heavy metals (Cd, Cu, Pb, Zn) concentration have been examined in 5 monitoring sites of river’s water along the part of the river passing through the plain of Hama; and also from 93 samples of topsoil from the area surrounding the city of Hama have been examined. The concentrations of heavy metals in both river water and soil were within the international standards. Water analyses indicated pH of moderately alkaline, no irrigation problem related to ammonium nitrogen and phosphate phosphorus, while the Electrical Conductivity (EC) has referred to an increasing problem. Geo-accumulation Index (Igeo) refers to strong building up for Cd, Pb, and very strongly for Cu. Soil analyses refer to clayey, calcareous, and alkaline soil with pH ranges from 7.5 to 8.6, with significantly higher organic matter content especially near sewage plants, attributed to irrigation with untreated sewage sludge water. Geostatistical analysis of data showed up normal spatial distribution related to the high variation between the values of the studied elements; whereas the Cu and Cd concentrations were higher than allowable limit near the steel, rubber wheel factories and reach 127 for Cu and 9.8 μg·g -1 for Cd. Additionally, a high concentration of Cu was significantly associated with organic matter content. The concentration of Pb was within the limits, with the exception of riverbanks where the values of Pb exceed 95 μg·g -1 , with (Igeo) of 4.22 refers strongly to very strong accumulation. Total Zn concentration showed higher variability and values ranging from 13 to 760 μg·g -1 , with a distribution trend increases from southeast to northwest. However, its environmental risk will be more serious to human and livestock.
FAO and ITPS (2015) Status of the World’s Soil Resources (SWSR)—Main Report. Food and Agriculture Organization of the United Nations and Intergovernmental Technical Panel on Soils, Rome, Italy. http://www.fao.org/3/a-i5199e.pdf.
Lourenco, R.W. and Landim, P.M.B. (2005) Risk Mapping of Public Health through Geostatistics Methods. Public Health Reports, 21, 150-160.
Luo, Y., Wu, L., Liu, L., Han, C. and Li, Z. (2009) Heavy Metal Contamination and Remediation in Asian Agricultural Land. National Institute for Agro-Environmental Sciences. http://www.naro.affrc.go.jp/archive/niaes/marco/marco2009/english/program/S-1_LuoYM.pdf
DEA (2010) Framework for the Management of Contaminated Land. Republic of South Africa, Department of Environmental Affairs. http://sawic.environment.gov.za/documents/562.pdf
SSR (2010) Soil Contamination in West Africa. Environmental Remediation Pollution. https://www.scribd.com/doc/71599035/SoilContamination-in-West-Africa
Bundschuh, J., Litter, M.I., Parvez, F., Román-Ross, G., Nicolli, H.B., Jean, J.S., Liu, C.W., López, D., Armienta, M.A., Guilherme, L.R.G., Cuevas, A.G., Cornejo, L., Cumbal, L. and Toujaguez, R. (2012) One Century of Arsenic Exposure in Latin America: A Review of History and Occurrence from 14 Countries. The Science of the Total Environment, 429, 2-35. https://doi.org/10.1016/j.scitotenv.2011.06.024 http://www.sawic.environment.gov.za/documents/562.pdf
EEA (2014) Progress in Management of Contaminated Sites. European Environment Agency. Management of Contaminated 1. https://www.eea.europa.eu/data-and-maps/indicators/progress-in-management-of-contaminated-sites
Franssen, H., Eijnsbergen, A.C. and Stein, A. (1997) Use of Spatial Prediction Techniques and Fuzzy Classification for Mapping Soil Pollutants. Geoderma, 77, 243-262. https://doi.org/10.1016/S0016-7061(97)00024-4
Raskin, I., Kumar, P.B.A.N., Dushenkov, S. and Salt, D.E. (1994) Bioconcentration of Heavy Metals by Plants, Current Opinion in Biotechnology, 5, 285-290. https://doi.org/10.1016/0958-1669(94)90030-2
Kemp, D.D. (1998) The Environment Dictionary. Routledge, London, New York.
Bos, R., Carr, R. and Keraita, B. (2010) Assessing and Mitigating Wastewater-Related Health Risks in Low-Income Countries: An Introduction. In: Drechsel, P., Scott, C.A., Raschid-Sally, L., Redwood, M. and Bahri, A., Eds., Wastewater Irrigation and Health: Assessing and Mitigation Risks in Low-Income Countries, Earthscan-IDRC-IWMI, UK, 29-47.
Tóth, G., Hermann, T., Da Silva, M.R. and Montanarella, L. (2016) Heavy Metals in Agricultural Soils of the European Union with Implications for Food Safety. Environment International, 88, 299-309. https://doi.org/10.1016/j.envint.2015.12.017
Shakeri, A., Moore, F. and Modabberi, S. (2009) Heavy Metal Contamination and Distribution in the Shiraz Industrial Complex Zone Soil, South Shiraz, Iran. World Applied Sciences Journal, 6, 413-425.
Groom, C., Parker, J. and Teller, A. (1995) Agriculture. In: Stanners, E.D. and Bourdeau, P., Eds., Europe’s Environment. The Dobris Assessment, European Environmental Agency (EEA), Copenhagen, 447-463.
Alloway, B.J. (1990) Heavy Metal in Soils. John Wiley and Sons, New York, NY, USA.
Shen, Z.-G., Li, X.-D., Wang, C.-C., Chen, H.-M. and Chua, H. (2002) Lead Phytoextraction from Contaminated Soil with High-Biomass Plant Species. Journal of Environmental Quality, 31, 1893-1900. https://doi.org/10.2134/jeq2002.1893
Lu, Y., Song, S., Wang, R., Liu, Z., Meng, J., Sweetman, A.J., Jenkins, A., Ferrier, R.C., Li, H., Luo, W. and Wang, T. (2015) Impacts of Soil and Water Pollution on Food Safety and Health Risks in China. Environment International, 77, 5-15. https://doi.org/10.1016/j.envint.2014.12.010
Mackay, A.K., Taylor, M.P., Munksgaard, N.C., Hudson-Edwards, K.A. and Burn-Nunes, L. (2013) Identification of Environmental Lead Sources and Pathways in a Mining and Smelting Town: Mount Isa, Australia. Environmental Pollution, 180, 304-311. https://doi.org/10.1016/j.envpol.2013.05.007
Podolsky, F., Ettler, V., Sebek, O., Jezek, J., Mihaljevic, M., Kríbek, B., Sracek, O., Vaněk, A., Penízek, V., Majer, V., Mapani, B., Kamona, F. and Nyambe, I. (2015) Mercury in Soil Profiles from Metal Mining and Smelting Areas in Namibia and Zambia: Distribution and Potential Sources. Journal of Soils and Sediments, 15, 648-658. https://doi.org/10.1007/s11368-014-1035-9
Strzebońska, M., Jarosz-Krzemińska, E. and Adamiec, E. (2017) Assessing Historical Mining and Smelting Effects on Heavy Metal Pollution of River Systems over Span of Two Decades. Water, Air, and Soil Pollution, 228. https://doi.org/10.1007/s11270-017-3327-3
Gochfeld, M. (2003) Cases of Mercury Exposure, Bioavailability, and Absorption. Ecotoxicology and Environmental Safety, 56, 174-179. https://doi.org/10.1016/S0147-6513(03)00060-5
Haferburg, G. and Kothe, E. (2012) Biogeosciences in Heavy Metal-Contaminated Soils. In: Kothe, E. and Varma, A., Eds., Bio-Geo Interactions in Heavy Metal-Contaminated Soils, Springer, Heidelberg, 17-34. https://doi.org/10.1007/978-3-642-23327-2_2
Brookes, P.C. and McGrath, S.P. (1984) Effect of Metal Toxicity on the Size of the Soil Microbial Biomass. European Journal of Soil Science, 35, 341-346. https://doi.org/10.1111/j.1365-2389.1984.tb00288.x
Kumar, R.N. and Nagendran, R. (2007) Influence of Initial pH on Bioleaching of Heavy Metals from Contaminated Soil Employing Indigenous Acidithiobacillus thiooxidans. Chemosphere, 66, 1775-1781. https://doi.org/10.1016/j.chemosphere.2006.07.091
Paz-Ferreiro, J., Lu, H., Fu, S., Méndez, A. and Gascó, G. (2014) Use of Phytoremediation and Biochar to Remediate Heavy Metal Polluted Soils: A Review. Solid Earth, 5, 65-75. https://doi.org/10.5194/se-5-65-2014
Zhang, W.J., Jiang, F.B. and Ou, J.F. (2011) Global Pesticide Consumption and Pollution: With China as a Focus. Proceedings of the International Academy of Ecology and Environmental Sciences, 1, 125-144.
Rodriguez-Eugenio, N., McLaughlin, M. and Pennock, D. (2018) Soil Pollution: A Hidden Reality. FAO, Rome, 142.
WWAP (2017) The United Nations World Water Development Report, 2017: Wastewater: The Untapped Resource. United Nation Educational, Scientific and Cultural Organization, Paris. https://unesdoc.unesco.org/ark:/48223/pf0000247153
Scott, C.A., Faruqui, N.I. and Raschid-Sally, L. (2004) Wastewater Use in Irrigated Agriculture: Management Challenges in Developing Countries. CABI Publishing, Wallingford, UK.
WHO (2006) Guidelines for the Safe Use of Wastewater, Excreta and Greywater; Volume 2: Wastewater Use in Agriculture. World Health Organization, Geneva.
Ensink, J., Mahmood, T., van der Hoek, W., Raschid-Sally, L. and Amerasinghe, F. (2004) A Nationwide Assessment of Wastewater Use in Pakistan: An Obscure Activity or a Vitally Important One? Water Policy, 6, 197-206. https://doi.org/10.2166/wp.2004.0013
Lucke, B., al-Karaimeh, S. and Schorner, G. (2019) Channels, Terraces, Pottery, and Sediments—A Comparison of Past Irrigation Systems along a Climatic Transect in Northern Jordan. Journal of Arid Environments, 160, 56-73. https://doi.org/10.1016/j.jaridenv.2018.09.009
Scheierling, S.M., Bartone, C.R., Mara, D.D. and Drechsel, P. (2011) Towards an Agenda for Improving Wastewater Use in Agriculture. Water International, 36, 420-440. https://doi.org/10.1080/02508060.2011.594527
Van der Hoek, W., Hassan, M., Ensink, J.H., Feenstra, S., Raschid-Sally, L., Munir, S., Aslam, R., Ali, N., Hussain, R. and Matsuno, Y. (2002) Urban Wastewater: A Valuable Resource for Agriculture. A Case Study from Haroonabad, Pakistan. Research Report 63, IMWI, Colombo, Sri Lanka.
Jiménez, B., Drechsel, P., Koné, D., Bahri, A., Raschid-Sally, L. and Qadir, M. (2010) Wastewater, Sludge and Excreta Use in Developing Countries: An Overview. Wastewater Irrigation, 1.
Keraita, B., Jimenez, B. and Drechsel, P. (2008) Extend and Implications of Agricultural Reuse of Untreated, Partly Treated and Diluted Wastewater in Developing Countries. Agriculture, Veterinary Science, Nutrition and Natural Resources, 3, 1-15.
Raschid-Sally, L. and Jayakody, P. (2009) Drivers and Characteristics of Wastewater Agriculture in Developing Countries: Results from a Global Assessment. Research Report 127, IWMI, Colombo, Sri Lanka.
del Estado, J. (2001) Plan Hidrológico Nacional. Boletín Oficialdel Estado, 24228-24250. https://www.boe.es/buscar/doc.php?id=BOE-A-2001-1304
Keraita, B.N. and Drechsel, P. (2004) Agricultural Use of Untreated Urban Wastewater in Ghana. In: Scott, C.A., Faruqui, N.I. and Raschid-Sally, L., Eds., Wastewater Use in Irrigated Agriculture: Confronting the Livelihood and Environmental Realities, CABI, Wallingford, 101-112 http://www.cabi.org/cabebooks/ebook/20043115023
Uzen, N. (2016) Use of Wastewater for Agricultural Irrigation and Infectious Diseases. Diyarbakir Example. Journal of Environmental Protection and Ecology, 17, 488-497.
Moreira-Nodermann, L.M. (1987) Geochemistry and Environment. Geoquímica Brasilienses, 1, 89-107.
Harter, R.D. (1983) Effect of Soil pH on Adsorption of Lead, Copper, Zinc, and Nickel. Soil Science Society of America Journal, 47, 47-51. https://doi.org/10.2136/sssaj1983.03615995004700010009x
Sharma, M.R. and Raju, N.S. (2013) Correlation of Heavy Metal Contamination with Soil Properties of Industrial Areas of Mysore, Karnataka, India by Cluster Analysis. International Research Journal of Environment Sciences, 2, 22-27.
Giller, K.E., Witter, E. and McGrath, S.P. (1998) Toxicity of Heavy Metals to Microorganism and Microbial Processes in Agricultural Soils: A Review. Soil Biology and Biochemistry, 30, 1389-1414. https://doi.org/10.1016/S0038-0717(97)00270-8
Kozdrój, J. and van Elsas, J.D. (2001) Structural Diversity of Microbial Communities in Arable Soils of a Heavily Industrialized Area Determined by PCR-DGGE Finger Printing and FAME Profiling. Applied Soil Ecology, 17, 31-42. https://doi.org/10.1016/S0929-1393(00)00130-X
Kurek, E. and Bollag, J.-M. (2004) Microbial Immobilization of Cadmium Released from CdO in the Soil. Biogeochemistry, 69, 227-239. https://doi.org/10.1023/B:BIOG.0000031046.40036.df
Friedlová, M. (2010) The Influence of Heavy Metals on Soil Biological and Chemical Properties. Soil and Water Research, 5, 21-27. https://doi.org/10.17221/11/2009-SWR
Moller, A., Müller, H.W., Abdullah, A., Abdelgawad, G. and Utermann, J. (2005) Urban Soil Pollution in Damascus, Syria: Concentrations and Patterns of Heavy Metals in the Soils of the Damascus Ghouta. Geoderma, 124, 63-71. https://doi.org/10.1016/j.geoderma.2004.04.003
Lin, Y.P., Chang, T.K. and Teng, T.P. (2001) Characterization of Soil Lead by Comparing Sequential Gaussian Simulation, Simulated Annealing Simulation and Kriging Methods. Environmental Geology, 41, 189-199. https://doi.org/10.1007/s002540100382
Van Meirvenne, M. and Goovaerts, P. (2001) Evaluating the Probability of Exceeding a Site-Specific Soil Cadmium Contamination Threshold. Geoderma, 102, 75-100. https://doi.org/10.1016/S0016-7061(00)00105-1
Romic, M. and Romic, D. (2003) Heavy Metals Distribution in Agricultural Topsoils in Urban Area. Environmental Geology, 43, 795-805. https://doi.org/10.1007/s00254-002-0694-9
McGraph, D., Zhang, C.S. and Carton, O. (2004) Geostatistical Analyses and Hazard Assessment on Soil Lead in Silvermines Area, Ireland. Environmental Pollution, 127, 239-248. https://doi.org/10.1016/j.envpol.2003.07.002
Webster, R. and Oliver, M.A. (2007) Geostatistics for Environmental Scientists. 2nd Edition, John Wiley and Sons, Hoboken.
Azawi, J., Husein, H.M.H. and Mousa, M. (2014) Mapping Soil Fertility of Beer El-Hashem Project-Raqqa Using GIS. Research Journal of Aleppo University, Agriculture Science Series 107.
Liu, X., Wu, J. and Xu, J. (2006) Characterizing the Risk Assessment of Heavy Metals and Sampling Uncertainty Analysis in Paddy Field by Geostatistics and GIS. Environmental Pollution, 141, 257-264. https://doi.org/10.1016/j.envpol.2005.08.048
Zhang, C. and McGrath, D. (2004) Geostatistical and GIS Analyses on Soil Organic Carbon Concentrations in Grassland of Southeastern Ireland from Two Different Periods. Geoderma, 119, 261-275.
Zhang, X.Y., Lin, F.F., Wong, M.T., Feng, X.L. and Wang, K. (2009) Identification of Soil Heavy Metal Sources from Anthropogenic Activities and Pollution Assessment of Fuyang County, China. Environmental Monitoring and Assessment, 154, 439. https://doi.org/10.1007/s10661-008-0410-7
Abed Rabouh, R. (2005) The State of Rivers Pollution in Syria. MSc Thesis, Faculty of Agriculture, Damascus University.
PKN (1998) Gleby I Utwory Mineralne. Pobieranie Próbek Ioznaczanie Skladu Granulometrycznego PN-R-04032. Polski Komitet Normalizacyjny, Warszawa, ss.12.
Nelson, D.W. and Sommers, L.E. (1982) Total Carbon, and Organic Matter. Methods of Soil Analysis, Part 2. Chemical and Microbiological Properties. Agronomy Monograph No. 9, 2nd Edition, ASA-SSSA, Madison, USA.
Müller, G. (1979) Schwermetalle in den Sedimenten des Rheins-Veranderungen seit 1971. Umschau, 79, 778-783.
Huu, H.H., Rudy, S. and Van Damme, A. (2010) Distribution and Contamination Status of Heavy Metals in Estuarine Sediments near CauOng Harbor, Ha Long Bay, Vietnam. Geology Belgica, 13, 37-47.
Klerks, P.L. and Levinton, J.S. (1989) Rapid Evolution of Metal Resistance in a Benthic Oligochaete Inhabiting a Metal-Polluted Site. Biological Bulletin, 176, 135-141. https://doi.org/10.2307/1541580
Sutherland, R.A. (2000) Bed Sediment-Associated Trace Metals in an Urban Stream, Oahu, Hawaii. Environmental Geology, 39, 611-627. https://doi.org/10.1007/s002540050473
IPCC (1986) Principles and Methods for the Assessment of Neurotoxicity Associated with Exposure to Chemicals. World Health Organization, International Programme on Chemical Safety, Geneva (Environmental Health Criteria 60).
Adeniyi, A.A., Yusuf, K.O. and Okedeyi, O.O. (2008) Assessment of the Exposure of Two Fish Species to Metals Pollution in the Ogun River Catchments, Kettu, Lagos, Nigeria. Environmental Monitoring and Assessment, 137, 451-458. https://doi.org/10.1007/s10661-007-9780-5
Moreno, J.L., Bastida, F., Ros, M., Hernandez, T. and Garcia, C. (2009) Soil Organic Carbon Buffers Heavy Metal Contamination on Semiarid Soils: Effects of Different Metal Threshold Levels on Soil Microbial Activity. European Journal of Soil Biology, 45, 220-228. https://doi.org/10.1016/j.ejsobi.2009.02.004
Yap, D.W., Adezrian, J., Khairiah, J., Ismail, B.S. and Ahmad-Mahir, R. (2009) The Uptake of Heavy Metals by Paddy Plants (Oryza sativa) in Kota Marudu, Sabah, Malaysia, American-Eurasian. Journal of Agriculture and Environmental Sciences, 6, 16-19.
European Commission Director General Environment (2010) Heavy Metals and Organic Compounds from Wastes Used as Organic Fertilizers. Final Report, WPA Consulting Engineers Inc., Ref. Nr. TEND/AML/2001/07/20, 73-74. http://ec.europa.eu/environment/waste/compost/pdf/hm_finalreport.pdf