1. Ahmad, M.S., Ashraf, M. (2011). Essential roles and hazardous effects of nickel in plants. Reviews of Environmental Contamination and Toxicology. 214: 125-67 https://doi.org/10.1007/978-1-4614-0668-6_6
2. Aksoy, A., Sahin, U., Duman, F., Samecka-Cymerman, A., Stankiewicz, A., Kolon, K., Kempers, A.J. (2000). Robinia pseudo-acacia L. as a Posssible Biomonitor of Heavy Metal Pollution in Kayseri. Turkish Journal of Botany. 24: 2061-2065
3. Al-Khashman, O. (2007). Determination of metal accumulation in deposited street dusts in Amman, Jordan. Environmental Geochemistry and Health. 29: 1-10 https://doi.org/10.1007/s10653-006-9067-8
4. Awasthi, S. K. (2000). Prevention of food adulteration act of 37 of 1954. Central and state rules as amended for 1999, III edition. Ashoka law house, New Delhi
5. Bermudez, G.M.A., Jasan, R., Plá, R., Pignata, M.L. (2011). Heavy metal and trace element concentrations in wheat grains: Assessment of potential non-carcinogenic health hazard through their consumption. Journal of Hazardous Materials. 193: 264-271 https://doi.org/10.1016/j.jhazmat.2011.07.058
6. Bermudez, G.M.A., Moreno, M., Invernizzi, R., Plá, R., Pignata, M.L. (2010). Heavy metal pollution in topsoils near a cement plant: The role of organic matter and distance to the source to predict total and HCl-extracted heavy metal concentrations. Chemosphere 78: 375-381 https://doi.org/10.1016/j.chemosphere.2009.11.012
7. Carreras, H.A., Pignata, M.L. (2002). Biomonitoring of heavy metals and air quality in Cordoba City, Argentina, using transplanted lichens. Environmental Pollution. 117: 77-87 https://doi.org/10.1016/S0269-7491(01)00164-6
8. Christoforidis, A., Stamatis, N. (2009). Heavy metal contamination in street dust and roadside soil along the major national road in Kavala's region, Greece. Geoderma. 151: 257-263 https://doi.org/10.1016/j.geoderma.2009.04.016
9. Corredor, E., Testillano, P.S., Coronado, M.-J., González-Melendi, P., Fernández-Pacheco, R., Marquina, C., Ibarra, M.R., Fuente, J.M. de la, Rubiales, D., Pérez-de-Luque, A., Risueño, M.-C. (2009). Nanoparticle penetration and transport in living pumpkin plants: in situ subcellular identification. BMC Plant Biology. 9: 45 https://doi.org/10.1186/1471-2229-9-45
10. de Kok, T.M.C.M., Driece, H.A.L., Hogervorst, J.G.F., Briedé, J.J. (2006). Toxicological assessment of ambient and traffic-related particulate matter: A review of recent studies. Mutat. Res. - Rev. Mutation Research. 613: 103-122 https://doi.org/10.1016/j.mrrev.2006.07.001
11. Faiz, Y., Tufail, M., Javed, M.T., Chaudhry, M.M., Naila-Siddique. (2009). Road dust pollution of Cd, Cu, Ni, Pb and Zn along Islamabad Expressway, Pakistan. Microchemical Journal. 92: 186-192 https://doi.org/10.1016/j.microc.2009.03.009
12. Freer-Smith, P.H., Beckett, K.P., Taylor, G. (2005). Deposition velocities to Sorbus aria, Acer campestre, Populus deltoides × trichocarpa 'Beaupré', Pinus nigra and × Cupressocyparis leylandii for coarse, fine and ultra-fine particles in the urban environment. Environmental Pollution. 133: 157-167 https://doi.org/10.1016/j.envpol.2004.03.031
13. Järup, L. (2003). Hazards of heavy metal contamination. British Medical Bulletin. 68:167-182 https://doi.org/10.1093/bmb/ldg032
14. Kabata-Pendias, A., Pendias, H. (2001). Trace Elements in Soils and Plants (3rd ed.), CRC Press, Florida https://doi.org/10.1201/9781420039900
15. Kardel, F., Wuyts, K., Babanezhad, M., Vitharana, U.W.A., Wuytack, T., Potters, G., Samson, R. (2010). Assessing urban habitat quality based on specific leaf area and stomatal characteristics of Plantago lanceolata L. Environ. Pollut. 158:788-794 https://doi.org/10.1016/j.envpol.2009.10.006
16. Lepp, N., W. (1981). Effect of heavy metal pollution in plants: Effects of trace metals on plant function. Applied science Publishers https://doi.org/10.1007/978-94-011-7339-1
17. Manno, E., Varrica, D., Dongarra, G. (2006). Metal distribution in road dust samples collected in an urban area close to a petrochemical plant at Gela, Sicily. Atmospheric Environment. 40: 5929-5941 https://doi.org/10.1016/j.atmosenv.2006.05.020
18. Marjanovic, T., Trumic M., Markovic, L.J. (2003). Local Environmental Action Plan of Municipality of Bor (LEAP), Bor, Serbia. (in Serbian)
19. Meza-Figueroa, D., O-villanueva, M. De, Luisa, M., Parra, D. (2007). Heavy metal distribution in dust from elementary schools in Hermosillo, Sonora, Mexico. Atmospheric Environment. 41: 276-288 https://doi.org/10.1016/j.atmosenv.2006.08.034
20. Nriagu, J.O. (1988). Production and uses of chromium. Chromium in natural and human environment. John Wiley and Sons. New York, USA
21. Pacyna, E.G., Pacyna, J.M., Fudala, J., Strzelecka-Jastrzab, E., Hlawiczka, S., Panasiuk, D., Nitter, S., Pregger, T., Pfeiffer, H., Friedrich, R. (2007). Current and future emissions of selected heavy metals to the atmosphere from anthropogenic sources in Europe. Atmospheric Environment. 41: 8557-8566 https://doi.org/10.1016/j.atmosenv.2007.07.040
22. Pandey, J., Pandey, R., Shubhashish, K. (2009). Air-borne heavy metal contamination to dietary vegetables: A case study from India. Bulletin of Environmental Contamination and Toxicology. 83: 931-936 https://doi.org/10.1007/s00128-009-9879-1
23. Pandey, J., Pandey, U. (2009). Accumulation of heavy metals in dietary vegetables and cultivated soil horizon in organic farming system in relation to atmospheric deposition in a seasonally dry tropical region of India. Environmental Monitoring Assessment. 148: 61-74 https://doi.org/10.1007/s10661-007-0139-8
24. Pandey, S.K., Singh, H. (2011). Simple, cost-effective method for leaf area estimation. Journal of Botany. 6 https://doi.org/10.1155/2011/658240
25. Pellizzari, E.D., Clayton, C.A., Rodes, C.E., Mason, R.E., Piper, L.L., Fort, B., Pfeifer, G., Lynam, D. (1999). Particulate matter and manganese exposures in Toronto, Canada. Atmospheric Environment. 33: 721-734 https://doi.org/10.1016/S1352-2310(98)00229-5
26. Pätsikkä, E., Marja Kairavuo, M., Šeršen, F., Aro, E., Tyystjärvi, E. (2002). Excess Copper Predisposes Photosystem II to Photoinhibition in Vivo by Outcompeting Iron and Causing Decrease in Leaf Chlorophyll. Plant Physiology. 129: 1359-1367 https://doi.org/10.1104/pp.004788
27. Rahman, H., Sarbreen, S., Alam, S., Kawai, S. (2005). Effect of nickel on growth and composition of metal micronutrient in barely plants grown in nutrient solution. Journal of Plant Nutrition. 28: 393-404 https://doi.org/10.1081/PLN-200049149
28. Rai, P.K. (2016). Impacts of particulate matter pollution on plants: Implications for environmental biomonitoring. Ecotoxicology and Environmental Safety. 129: 120-136 https://doi.org/10.1016/j.ecoenv.2016.03.012
29. Schreck, E., Foucault, Y., Sarret, G., Sobanska, S., Cécillon, L., Castrec-Rouelle, M., Uzu, G., Dumat, C. (2012). Metal and metalloid foliar uptake by various plant species exposed to atmospheric industrial fallout: Mechanisms involved for lead. Science of the Total Environment. 427-428: 253-262 https://doi.org/10.1016/j.scitotenv.2012.03.051
30. Serbula, S.M., Miljkovic, D.D., Kovacevic, R.M., Ilic, A.A. (2012). Assessment of airborne heavy metal pollution using plant parts and topsoil. Ecotoxicology and Environmental Safety. 76: 209-214 https://doi.org/10.1016/j.ecoenv.2011.10.009
31. Shahid, M., Xiong, T., Castrec-Rouelle, M., Leveque, T., Dumat, C. (2013). Water extraction kinetics of metals, arsenic and dissolved organic carbon from industrial contaminated poplar leaves. Journal of Environmental Sciences. 25: 2451-2459 https://doi.org/10.1016/S1001-0742(12)60197-1
32. Shanker, A.K., Cervantes, C., Loza-Tavera, H., Avudainayagam, S. (2005). Chromium toxicity in plants. Environment International. 31:739-753 https://doi.org/10.1016/j.envint.2005.02.003
33. Simon, E., Baranyai, E., Braun, M., Cserháti, C., Fábián, I., Tóthmérész, B. (2014). Elemental concentrations in deposited dust on leaves along an urbanization gradient. Science of the Total Environment. 490: 514-520 https://doi.org/10.1016/j.scitotenv.2014.05.028
34. Simon, E., Braun, M., Vidic, A., Bogyó, D., Fábián, I., Tóthmérész, B. (2011). Air pollution assessment based on elemental concentration of leaves tissue and foliage dust along an urbanization gradient in Vienna. Environment Pollution. 159: 1229-1233 https://doi.org/10.1016/j.envpol.2011.01.034
35. Singh, K. B. Taneja, S. K. (2010). Concentration of Zn, Cu and Mn in vegetables and meat foodstuffs commonly available in Manipur: a North Eastern State of India. Electronic Journal of Environmental Agriculture and Food Chemistry. 9: 610-616
36. Tomaševi?, M., Ani?i?, M., Jovanovi?, L., Peri?-Gruji?, A., Risti?, M. (2011). Deciduous tree leaves in trace elements biomonitoring: A contribution to methodology. Ecological Indicators. 11: 1689-1695 https://doi.org/10.1016/j.ecolind.2011.04.017
37. Tripathi, R.M., Raghunath, R. (1997). Dietary intake of heavy metals in Bombay city , India. Science of the Total Environment. 208: 149-159 https://doi.org/10.1016/S0048-9697(97)00290-8
38. Xiong, T.T., Leveque, T., Austruy, A., Goix, S., Schreck, E., Dappe, V., Sobanska, S., Foucault, Y., Dumat, C. (2014). Foliar uptake and metal(loid) bioaccessibility in vegetables exposed to particulate matter. Environmental Geochemistry and Health. 36: 897-909 https://doi.org/10.1007/s10653-014-9607-6
39. Yadav, S., K. (2010). Heavy metals toxicity in plants: An overview on the role of glutathione and phytochelatins in heavy metal stress tolerance of plants. South African Journal of Botany. 76:167-179 https://doi.org/10.1016/j.sajb.2009.10.007
40. Yongming, H., Peixuan, D., Junji, C., Posmentier, E.S. (2006). Multivariate analysis of heavy metal contamination in urban dusts of Xi'an, Central China. Science of the Total Environment. 355: 176-186 https://doi.org/10.1016/j.scitotenv.2005.02.026