endobj << /S /P 217 0 obj Heavy metals drinking water have been set up by different authors and also listed their adverse effects on the human health. /Type /StructElem endobj /Type /StructElem /Pg 13 0 R /K [360 0 R 361 0 R 199 0 R] /Pg 13 0 R << /K [9 0 R] << /S /P /S /Table endobj Industrial processes generate wastes, which are mostly discharged . >> 0000083904 00000 n >> << << << /Pg 13 0 R << /K [36] /Group 232 0 R /P 346 0 R Various sources of heavy metals include soil erosion, natural weathering /Type /StructElem /P 9 0 R /Type /StructElem /K 14 37 0 obj /Pg 17 0 R /K [54] 172 0 obj endobj /Type /StructElem endobj /StructParents 3 /K [5] endobj /Type /StructElem 29 0 obj Heavy metals are toxic to soil, plants, aquatic life and human health if their concentration is high in the compost. /S /P << /P 9 0 R /Type /StructElem /Pg 16 0 R /K [34] /Pg 15 0 R >> /Pg 12 0 R 124 0 obj endobj 182 0 obj /S /P /Pg 11 0 R /S /P Lead targets multiple organs in the body due to its systemic toxicity which can cause >> /K [358 0 R 195 0 R] >> /P 9 0 R 61 0 obj << /K 42 /P 74 0 R << >> << << /Pg 17 0 R endobj endobj /Type /StructElem >> /Count 7 endobj /Pg 17 0 R 26 0 R 27 0 R 28 0 R 29 0 R 30 0 R 30 0 R 31 0 R 32 0 R 33 0 R 34 0 R << /Pg 11 0 R >> /K [2] /P 330 0 R /Type /StructElem 46 0 obj /Type /StructElem 119 0 obj >> /Pg 13 0 R /P 290 0 R >> /S /Table All sampled vegetables presented average concentrations of Cd and Ni lower than the permissible limits … /S /P /S /P /P 218 0 R /P 328 0 R << >> Eight common heavy metals are discussed in this brief: arsenic, barium, cadmium, chromium, lead, mercury, selenium, and sil-ver. /Pg 13 0 R /P 339 0 R >> >> >> /S /Span endobj endobj 78 0 obj /S /Span >> /K [50] endobj endobj << >> /S /Span /S /Link /Pg 13 0 R endobj /P 74 0 R /S /P Heavy metals can damage and alter the functioning of organs such as the brain, kidney, lungs, liver, and blood. << /S /P 203 0 obj endobj /S /Link /S /Span /S /Span >> << /P 9 0 R 193 0 obj assessment of heavy metal concentration in the environment and perceived health risks by the community around kadhodeki dumpsite, nairobi county endobj /S /P << 80 0 obj >> Heavy metals are significant environmental pollutants and their toxicity is a problem of increasing significance for ecological, evolutionary, nutritonal and environmental reasons.i The most commonly found heavy metals in waste water include copper, nickel, zinccobalt and , cadmium all of which cause risks for human health and environment. endobj /Pg 12 0 R /Length 7 0 R /Type /StructElem endobj /K [3] /P 300 0 R >> /S /Link << /Type /StructElem << /Pg 17 0 R /Contents 269 0 R /P 281 0 R /K [4] /S /P /K [52] << >> /Pg 11 0 R /Pg 11 0 R /Type /StructElem /P 344 0 R Heavy metal toxicity can lower energy levels and damage the … /S /P /Pg 13 0 R endobj endobj >> /Type /StructElem 145 0 obj << /P 296 0 R endobj /K [7] /Type /StructElem << >> /Type /StructElem /S /Figure /P 9 0 R endobj >> endobj Acute heavy metal intoxications may damage central nervous /S /P endobj /S /Span /S /P >> In this review we summarized effects of various toxic metals on human health. These metals have been extensively studied and their effects on human health regularly reviewed by international bodies such as the WHO. endobj >> << 0000083836 00000 n /K [0] endobj /Type /StructElem 202 0 obj endobj Their presence is considered unique in the sense that it is difficult to remove them completely from the environment once they enter in it. /K [18 0 R 19 0 R 20 0 R 21 0 R 22 0 R 23 0 R 24 0 R 25 0 R 26 0 R 27 0 R 121 0 R 122 0 R 123 0 R 124 0 R 125 0 R 126 0 R 127 0 R 128 0 R 129 0 R 130 0 R /P 56 0 R endobj /Pg 12 0 R << << /S /Span /S /P /S /P << /Type /StructElem >> /Pg 12 0 R 226 0 obj << 15 0 obj /P 289 0 R >> endobj << 186 0 obj /Resources 227 0 R /P 9 0 R /Pg 13 0 R /Pg 12 0 R /K [21] 67 0 obj endobj /Pg 13 0 R << /S /P /Parent 5 0 R 173 0 obj 0000004515 00000 n /K 26 /Pg 12 0 R /Pg 17 0 R 163 0 obj /K [14 15] /Pg 12 0 R /P 102 0 R 183 0 obj /Type /StructElem /Type /StructElem /MediaBox [0 0 612 792] /Pg 14 0 R /K [287 0 R 288 0 R 289 0 R 290 0 R] >> /K 50 112 0 obj /ITXT (5.1.3) Heavy metals are toxic to soil, plants, aquatic life and human health if their concentration is high in the compost. /P 9 0 R /Type /StructElem /K [362 0 R 201 0 R] << << /Parent 5 0 R /S /P << << >> >> /P 334 0 R /Type /StructElem /MediaBox [0 0 612 792] >> /P 9 0 R /Pg 12 0 R /K 26 49 0 obj endobj /S /P /P 293 0 R /Group 236 0 R >> /Group 259 0 R /P 9 0 R << >> endobj >> endobj /Pg 17 0 R 0000033323 00000 n << /Length 366 0 R 52 0 obj /Pg 13 0 R >> /S /Span /K [12] endobj Microsoft® Word 2013; modified using iText® 5.1.3 ©2000-2011 1T3XT BVBA /S /P endobj >> They reduces productivity, bring stunting in growth and loss in chlorophyll (chlorosis) and protein contents in higher aquatic plants These metals are incorporated permanently in plants and then are passed on to animals and human beings. endobj /Pg 13 0 R << Heavy metals are individual metals and metal com-pounds that can impact human health. /Group 263 0 R /Annots [228 0 R 229 0 R 230 0 R 231 0 R] /Type /Page 0000160175 00000 n /K [11] 130 0 obj endobj /Type /StructElem /Pg 12 0 R 135 0 obj /Pg 13 0 R /P 336 0 R << EFFECTS OF HEAVY METALS ON HUMAN HEALTH There are 23 heavy metals that are of concern to the health of humans: antimony, arsenic, bismuth, cadmium, cerium, chromium, cobalt, copper, gallium, gold, iron, lead, manganese, mercury, nickel, platinum, silver, … 134 0 obj /K 1 /Pg 11 0 R /Pg 11 0 R endobj /K [27] << /Type /Page /K [9] /K [3] /Type /StructElem /MediaBox [0 0 612 792] endobj /P 57 0 R /P 220 0 R << /Type /StructElem >> << >> /S /P /Type /StructElem In larger amounts, they can be dangerous. 157 0 obj endobj /Type /StructElem endobj /Type /StructElem endobj /Type /StructElem 51 0 obj /Type /StructElem 0000004491 00000 n 0000008823 00000 n >> /K [55] Effects on human health Lead is a toxic heavy metal even at very low levels of exposure in humans. /K [8] /P 9 0 R /Pg 11 0 R 56 0 obj /S /Span /Type /StructElem /Pg 12 0 R /K 34 /S /P ), India#1 Associate Professor, Department of Chemistry, TIT-E & University R.G.P.V., Bhopal (M.P. /S /P /K [353 0 R 184 0 R] << /Type /StructElem /K [19] >> /P 317 0 R << << /K [356 0 R 190 0 R] /K [4] endobj /S /P /Type /StructElem The harmful effects of some important heavy metals on human health have been discussed. /P 56 0 R /P 9 0 R /K [17] 199 0 obj >> endobj >> >> /Type /StructElem Keywords: Heavy Metals, Pollution, Human Health, Metal contamination-----Introduction The term ‘heavy metals’ mostly refers to those metals having specific weights more than 5 g/cm3 [1]. 189 0 obj >> >> >> /S /Span << << >> 2 0 obj /S /P << /P 293 0 R /Type /StructElem /Type /StructElem 207 0 obj >> 47 0 obj /Pg 16 0 R /Type /Page /Pg 12 0 R 23 224 0 R 24 [80 0 R 81 0 R 82 0 R 83 0 R 84 0 R 85 0 R 86 0 R 87 0 R 88 0 R 89 0 R endobj /P 337 0 R Heavy metals with adverse health effects in human metabolism (including lead, mercury, cadmium and arsenic) present obvious concerns due to their persistence in the environment and documented potential for serious health consequences. >> 200 0 obj Keywords: Bioavailability, Contamination, Heavy metals, Human health, Metal … /Pg 14 0 R endobj 162 0 obj /P 9 0 R /P 74 0 R /Producer <4D6963726F736F6674AE20576F726420323031333B206D6F646966696564207573696E67206954657874AE20352E312E3320A9323030302D323031312031543358542042564241> /P 9 0 R /P 345 0 R /Pg 13 0 R /K [20] /Type /StructElem Although a few heavy metals are essential for human health, an excess amount of these metals can have negative effects [2]. /P 321 0 R 0000006667 00000 n /S /P 221 0 obj >> It was found that heavy metal concentrations clearly decreased with increasing distance from the zinc smelting facility (Figs 3–5). /S /Span /P 217 0 R /Type /StructElem /Slide /Part /P 306 0 R /Resources 261 0 R /K 58 /S /P << /Type /StructElem /Type /StructElem 54 0 obj /Type /StructElem >> endobj PHYSIOLOGICAL ROLES OF HEAVY METALS IN HUMANS Iron – hemoglobin, myoglobin Cobalt – coenzyme Copper – co-factor in enzymes Zinc – in enzymes Selenium – in enzymes Chromium – Cr 3+ in enzymes Some heavy metals have essential roles for human health. /Pg 13 0 R >> 0 endobj /Type /StructElem /Type /StructElem 84 0 obj 81 0 obj Heavy metal toxicity can result in damage or reduced mental and central nervous system … >> >> >> /K [10] endobj 93 0 obj /S /Span /P 276 0 R endobj endobj 179 0 obj 0000070079 00000 n << 187 0 obj /Type /StructElem << /Pg 14 0 R /K [42] /Pg 12 0 R endobj /StructParents 20 The term “heavy metals” is sometimes used to suggest pollution and toxic effects; 2 it implies metals of high density, but has also been used for other metals. /Type /StructElem endobj 17 0 obj /Creator <4D6963726F736F6674AE20576F72642032303133> /K [4] 88 0 obj /S /Link /P 56 0 R /Pg 11 0 R /Type /StructElem /K [61] >> 0000013225 00000 n /S /P /P 9 0 R /P 56 0 R /K [12] /K [102 0 R] endobj Most of these metals are characterized by being accumulated in tissues, and lead to the poisoning of fish. 0000005367 00000 n /S /P /P 214 0 R /Contents 237 0 R /Pg 13 0 R 96 0 obj /Pg 13 0 R /Type /StructElem endobj endobj /S /P 75 0 obj 211 0 obj >> /Tabs /S /K [3] /K [6] /P 9 0 R << endobj /P 335 0 R /K 53 /Header /Sect /Type /StructElem /Pg 13 0 R >> 35 0 R 36 0 R 37 0 R 38 0 R 39 0 R 100 0 R 101 0 R 21 0 R] /K [7] /S /P /P 215 0 R /S /P /K [60] /Pg 13 0 R 3 0 obj A value of intake of heavy metals in human diets was also calculated to estimate the risk to human health. /Type /StructElem endobj >> /K [22] /P 327 0 R endobj /StructParents 22 /K [6] /Pg 12 0 R >> 156 0 obj 0000010720 00000 n /Type /StructElem /P 9 0 R /S /P Introduction Hydrocarbon contamination in the environment is a very serious problem whether it comes from petroleum, pesticides or other toxic orga nic matter. << /K [7] << << /Endnote /Note << << << /Pg 13 0 R >> /P 310 0 R >> /P 340 0 R >> /S /P /S /P 77 0 obj /P 56 0 R << /MediaBox [0 0 612 792] endobj endobj /Type /StructElem /Type /StructElem /P 325 0 R /Pg 14 0 R endobj 97 0 obj /Pg 17 0 R endobj 141 0 obj /Type /StructElem /K [8] 131 0 R 44 0 R 45 0 R 46 0 R 47 0 R 48 0 R 49 0 R 50 0 R 51 0 R 132 0 R For example in Malaysia /Type /StructElem /K [282 0 R 283 0 R 284 0 R 285 0 R 286 0 R] >> >> /Type /StructElem >> << endobj << << 44 0 obj /Pg 13 0 R /S /P 1 102 0 R 2 103 0 R 3 [40 0 R 41 0 R 42 0 R 104 0 R 105 0 R 106 0 R 107 0 R 108 0 R 109 0 R 110 0 R /Type /StructElem << /Type /StructElem 0000002606 00000 n /S /P endobj /P 305 0 R 188 0 obj << 9 0 obj Heavy metal are hazardous to human health and degrade environment quality. /Type /StructElem << 33 0 obj 23 0 obj >> >> 0000159792 00000 n >> /P 286 0 R /Type /StructElem /P 9 0 R /Type /StructElem << 7 0 obj endobj /K [2] /S /P 180 0 obj >> >> 82 0 obj << /S /P /S /P /P 320 0 R /Type /StructElem Heavy metal toxicity can have several health effects in the body. << /S /Link endobj << >> >> 0000003925 00000 n /Kids [11 0 R 12 0 R 13 0 R 14 0 R 15 0 R 16 0 R 17 0 R] 209 0 obj endobj /S /Span /Pg 12 0 R >> /S /Span /S /Span 38 0 R 39 0 R 40 0 R 41 0 R 42 0 R 43 0 R 44 0 R 45 0 R 46 0 R 47 0 R /Tabs /S /K [27] << /P 9 0 R /P 347 0 R /Type /StructElem /Pg 12 0 R /P 304 0 R /P 207 0 R endobj 11 0 obj /S /P In this study, lead, copper and nickel were the selected heavy metal. /P 57 0 R /P 9 0 R Children and heavy metals To define the spectrum of heavy metals (others than lead and mercury) with adverse effects on human health To describe the epidemiology of adverse effects of heavy metals (Arsenic, Cadmium, Copper and Thallium) in children To describe sources and routes of exposure of children to those heavy metals >> 95 0 obj /Pg 17 0 R /S /Link endobj >> 111 0 obj 66 0 obj The heavy metals have adverse effects on plants. /P 9 0 R /StructParents 21 endobj endobj /Type /StructElem >> /Type /StructElem /S /Link 175 0 obj /K [22] 70 0 obj /P 9 0 R /S /P /Pg 12 0 R << /P 9 0 R endobj /Tabs /S /P 9 0 R /S /P << /K [13] endobj /Macrosheet /Part /Type /StructElem /P 9 0 R /P 57 0 R /Pg 13 0 R 22 [221 0 R 222 0 R 223 0 R 75 0 R 76 0 R 77 0 R 78 0 R 79 0 R] /Type /StructElem 0000002830 00000 n << /Type /StructElem /K 41 53 0 obj /S /Figure /P 213 0 R endobj /Pg 12 0 R >> /Type /StructElem /K [0] /K 51 /Pg 11 0 R heavy metals in waste water include arsenic, cadmium, chromium, copper, lead, nickel, and zinc, all of which cause risks for human health and the environment (Lambert et al., 2000). /Type /StructElem >> /P 9 0 R /S /P /K 4 endobj 26 0 obj Heavy metal toxicity can either be acute or chronic effects. 177 0 obj endobj /S /P /Type /StructElem /Annots [271 0 R] /K 38 Generally, humans are more likely to be exposed to heavy metals through water consumption and thus bioaccumulation of toxic metals takes place in the human body. /Pg 13 0 R /P 9 0 R /S /P /P 224 0 R 0000069881 00000 n 27 0 obj << /P 208 0 R /Pg 13 0 R /Type /StructElem >> /S /P /S /Span >> /Type /StructElem /S /Span /P 346 0 R 171 0 obj /K [13] /P 279 0 R /Pg 12 0 R endobj >> /P 9 0 R /Pg 17 0 R 0000012986 00000 n endobj The influence of these heavy metals on plants and their metabolic activities caused by the geological and biological redistribution of heavy metals through pollution of the air, water and soil were briefly discussed in this article. /S /P 181 0 obj /Pg 13 0 R 220 0 obj /Group 268 0 R /K [29] >> /K [221 0 R 224 0 R 223 0 R] << 0000009734 00000 n >> /S /P /Resources 270 0 R /S /P >> /K 25 >> 20 0 obj /P 9 0 R >> endobj /InlineShape /Sect 69 0 obj /P 9 0 R endobj /Type /StructElem >> << 4177 INTRODUCTION For the maintenance of health, a great deal of preventa- tive measures … /K [1] Its effect on the human body can be both acute and chronic depending on dose and exposure scenarios. /StructParents 4 /K [8] << 155 0 obj They are extremely dangerous for the health of fish. /P 9 0 R << >> All cases have been mild, and no deaths occurred. /P 56 0 R 0000139854 00000 n /S /P endobj /Pg 12 0 R /P 292 0 R /K [7] 10 0 obj /Pg 13 0 R 0000083768 00000 n >> >> /Pg 12 0 R << /S /Link >> endobj /S /Span /K [38] /K 37 << 20 [60 0 R 61 0 R 62 0 R 63 0 R 64 0 R 65 0 R 66 0 R 67 0 R 68 0 R] /S /P /Nums [0 [94 0 R 95 0 R 96 0 R 97 0 R 98 0 R 99 0 R 22 0 R 23 0 R 24 0 R 25 0 R >> H��W[o۸~ϯࣵ�Q��*�I��Y4m�x���)�-�ڵ%W������H�n� ��r�ߌ�Λ�\��z�����u�T_�f�N};���w�:�P̗E��f���?�ռ+�J�ys��R�\�N��Ĺz<9{����l6U䩚�N�(�Xeq�f˓�Wo�72h�`���_'w�� #5Y���Ul�k��z�/�� S�&���c"\��:U�y��eK�OƔ+�V��K�0\X6��@��������H`e��Hm����,�q�M��[+��CYe���Rw���S��C)r���r�/�9u�QBzjz&�����8�b��oNIE�W3`������_��Gw�,;us�1יQ��2� �4� ��fJAV�0�S���g�x�����'_�BPd�L���$2IH4$h���8H�49ڂ�~���~����� ���~6�22y�4��'��Ed��$R��,e�;,ABO���n^)�L�w�I���:����cw^F ��������� �&c��04o�]:Q�e����2�[�%P+@�/�0�����. /K [28] 120 0 obj >> /P 284 0 R << endobj /Type /StructElem /P 57 0 R 195 0 obj << /Pg 13 0 R /S /Link 128 0 obj /P 9 0 R >> /P 9 0 R << /K [1] /Pg 13 0 R >> /Pg 12 0 R << << /Pg 12 0 R /P 9 0 R 39 0 obj /K [2] 138 0 obj /S /P /P 333 0 R /K [21] << /K 9 /P 9 0 R endobj /S /P 40 0 obj 0000007464 00000 n /P 298 0 R /S /P endobj >> /K 32 >> >> << 121 0 obj >> /Resources 238 0 R /P 292 0 R /K [352 0 R 182 0 R] << /Type /StructElem /Type /StructElem /P 56 0 R 225 0 obj >> << endobj 122 0 obj /Type /Metadata endobj endobj /Resources 234 0 R /P 9 0 R << 190 0 obj 0000002013 00000 n /S /P 74 0 obj /K [5] << << endobj endobj /S /P /Subtype /XML /Type /StructElem /Pg 12 0 R /S /Link << /Pg 13 0 R /Pg 15 0 R /S /P /K [11] >> 206 0 obj >> /Type /StructElem /K 63 68 0 obj >> /Type /StructElem /P 9 0 R /Type /StructElem << >> 223 0 obj endobj 249 0 R 250 0 R 251 0 R 252 0 R 253 0 R 254 0 R] /S /Span 14 0 obj 25 0 obj /Pg 11 0 R /P 9 0 R endobj >> endobj Environments, and Effects of Heavy Metals Co-Contamination on Bioremediation Shukla Abha and Cameotra Swaranjit Singh Institute of Microbial Technology, Chandigarh, India 1. 198 0 obj /Pg 17 0 R 90 0 R 91 0 R 92 0 R 93 0 R] << /Type /StructElem 117 0 obj /K [16] 0000032775 00000 n endobj … /Type /StructElem /Footer /Sect /Pg 13 0 R 165 0 obj /S /P 68 0 R 69 0 R 70 0 R 71 0 R 72 0 R 73 0 R 74 0 R 75 0 R 76 0 R 77 0 R >> << >> 0000002496 00000 n >> >> /S /P /K [25] /Type /StructElem /K 33 >> /P 19 0 R << << << /P 323 0 R /Pg 11 0 R >> /S /Link Broadly, long-term exposure to heavy metals can have carcinogenic, central and peripheral >> /S /Span /Type /StructElem /P 211 0 R 18 0 obj /K 26 /Type /StructElem /S /P /Tabs /S 2000 Owerri, Imo State, Nigeria. Toxicity of heavy metals depends on a lot of factors such as which metal is present, the nature of the metal, the biological role of the metal, the organism exposed and the period of the organisms life when it is exposed. Heavy metal in drinking water its effect on human health and its treatment techniques - a review Muhammad Jamshaid 1* , Arshad Ali Khan 1 , Kashif Ahmed 1 ,Monawwar Saleem 2 /K [5] endobj 0000001476 00000 n endobj /S /P /S /Span /StructParents 24 >> /K 20 /P 57 0 R Cadmium has also been identified as a potential human carcino-gen, causing lung cancer. /Type /Catalog /Type /StructElem %���� /Pg 13 0 R 192 0 obj /Type /StructElem /Type /StructElem /Type /StructElem /K [18] /K 31 >> /K [4] /Pg 13 0 R /Pg 12 0 R /K [57] /Type /StructElem endobj >> endobj endobj << 2021-02-11T13:59:03+05:302015-10-01T13:08:47+05:302021-02-11T13:59:03+05:30Microsoft® Word 2013 >> endobj /P 3 0 R /K [295 0 R 101 0 R] /Type /StructElem /K 40 /K [3] >> /Pg 12 0 R 100 0 obj endobj /K [364 0 R 205 0 R] /P 9 0 R endobj << /P 9 0 R 8 0 obj endobj /Type /StructElem /S /P >> <<61298fc13575804398273f123e655de0>]>> /S /Span 79 0 obj >> /S /P endobj /P 315 0 R 47 0 obj<>stream /Pg 13 0 R << /Type /StructElem /Contents 233 0 R << /K 48 /S /P 143 0 R 144 0 R 145 0 R 146 0 R 147 0 R 148 0 R 149 0 R 150 0 R 151 0 R 152 0 R /Type /StructElem 125 0 obj /S /P << << endobj endobj Heavy metals exhibit toxic effects towards soil biota by affecting key microbial processes and decrease the number and activity of soil microorganisms. /K [9] >> /K [35] 169 0 obj 204 0 obj << /K [10] << /S /P >> 38 0 obj /P 56 0 R 136 0 obj 21 [69 0 R 70 0 R 71 0 R 72 0 R 73 0 R] /Contents 226 0 R >> << /K [350 0 R 178 0 R] endobj /Type /StructElem >> >> /S /P /Pages 5 0 R endobj << >> /Pg 17 0 R Heavy metals, such as mercury, cadmium, copper, lead and zinc are of the most important pollutants which effect aquatic environment and fish. /Pg 12 0 R >> for human health [12]. endobj /Pg 11 0 R /Type /StructElem 205 0 R 206 0 R 58 0 R 59 0 R] endobj >> /K [12] /P 9 0 R /S /P endobj /K 45 73 0 obj << /Type /StructElem endobj << Heavy metal is a general collective term which is applied to the group of metal and metalloids, many of them have biotoxic effects due to which they became harmful. /Type /StructElem endobj /P 291 0 R 98 0 obj /Type /StructElem /Type /StructElem /S /Span endobj /Pg 12 0 R << /Group 225 0 R << /Type /Page 1 0 obj /K 47 >> /K [363 0 R 203 0 R] /Type /StructElem >> /S /Span /P 273 0 R << >> /S /Link endobj endobj endobj 153 0 R 154 0 R 155 0 R 156 0 R] /P 307 0 R /Pg 13 0 R %PDF-1.5 %���� << /Type /StructElem /S /P /Type /StructElem ] /S /P >> 176 0 obj >> endobj /S /P /K [21] /K 25 111 0 R 112 0 R 113 0 R 114 0 R 115 0 R 116 0 R 117 0 R 118 0 R 119 0 R 120 0 R >> 118 0 obj 0000108163 00000 n source of heavy metal contamination.Heavy metals can accumulate in organisms as they are hard to metabolize. /S /P /Pg 13 0 R << /K [0] 174 0 obj /S /Span endobj 144 0 obj /Group 255 0 R /S /P /Type /StructElem /Type /StructElem endobj /S /Span endobj 0000159525 00000 n /P 56 0 R << /Type /StructElem /P 56 0 R << 131 0 obj /Type /StructElem /S /P /K [2] endobj Even low concentration of heavy metals may inhibit the physiological metabolism of plant. /Pg 13 0 R << >> /S /P /Contents 264 0 R /K [15] /K 20 >> << /Type /StructElem /S /P /S /P /Pg 12 0 R endobj /Pg 13 0 R /K [294 0 R 100 0 R] /Type /StructElem /Type /StructElem 212 0 R 189 0 R 213 0 R 191 0 R 214 0 R 193 0 R] /P 9 0 R << /Type /Pages << >> /Pg 12 0 R /Type /StructElem /Type /StructElem /Pg 13 0 R 10 212 0 R 11 213 0 R 12 214 0 R 13 215 0 R 14 216 0 R /S /P trailer 60 0 obj >> endobj /Pg 13 0 R heavy metals in waste water include arsenic, cadmium, chromium, copper, lead, nickel, and zinc, all of which cause risks for human health and the environment (Lambert et al., 2000). /Type /Group >> 0000139656 00000 n /Pg 13 0 R /P 312 0 R /Type /StructElem 0000013427 00000 n 219 0 obj Term is avoided has different characteristics facility ( Figs 3–5 ) natu-ral and. 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