Human Health Risks from Exposure to Heavy Metals of Suspended Particulate Matter around the Tongon Gold Mine, Côte d’Ivoire  

作　　者：Kagbagnan Kone Adjoumani Rodrigue Kouakou Julien Bahino Horo Kone Kouakou Eric Adou Ehouman Ahissan Donatien Kopoin Adouby Kagbagnan Kone;Adjoumani Rodrigue Kouakou;Julien Bahino;Horo Kone;Kouakou Eric Adou;Ehouman Ahissan Donatien;Kopoin Adouby(Département de Géographie, UFR Sciences Sociales, Université Péléforo Gon Coulibaly, Korhogo, Cô,te d’Ivoire;Laboratoire des Procédés Industriels de Synthèse de L’environnement et des Energies Nouvelles, Institut National Polytechniques Félix Houphouë,t Boigny, Yamoussoukro, Cô,te d’Ivoire;Laboratoire de Thermodynamique et Physico-chimie du Milieu, UFR Sciences Fondamentales et Appliquées, Université Nangui Abrogoua, Abidjan, Cô,te d’Ivoire;Laboratoire des Sciences de la Matière de l’Environnement et de l’Energie Solaire, LASMES, UFR SSMT, Université Félix Houphouë,t-Boigny, Abidjan, Cô,te d’Ivoire;Laboratoire de Physique chimie, UFR médecine/Département des Sciences et Techniques, Université Alassane Ouattara, Bouaké Cô,te d’Ivoire)

机构地区：[1]Département de Géographie, UFR Sciences Sociales, Université Péléforo Gon Coulibaly, Korhogo, Cô,te d’Ivoire [2]Laboratoire des Procédés Industriels de Synthèse de L’environnement et des Energies Nouvelles, Institut National Polytechniques Félix Houphouë,t Boigny, Yamoussoukro, Cô,te d’Ivoire [3]Laboratoire de Thermodynamique et Physico-chimie du Milieu, UFR Sciences Fondamentales et Appliquées, Université Nangui Abrogoua, Abidjan, Cô,te d’Ivoire [4]Laboratoire des Sciences de la Matière de l’Environnement et de l’Energie Solaire, LASMES, UFR SSMT, Université Félix Houphouë,t-Boigny, Abidjan, Cô,te d’Ivoire [5]Laboratoire de Physique chimie, UFR médecine/Département des Sciences et Techniques, Université Alassane Ouattara, Bouaké Cô,te d’Ivoire

出　　处：《Journal of Agricultural Chemistry and Environment》2023年第2期171-187,共17页农业化学和环境（英文）

摘　　要：The Tongon mine, the largest gold mine in C?te d’Ivoire, has been in operation since April 2010. However, to our knowledge to date, no study has been conducted on metallic contamination in suspended particulate matter (PM₁₀ and PM_2.5) where there is a lack of information on the carcinogenic and non-carcinogenic risk to human health associated with the exposure of populations in the Tongon area to these pollutants. The general objective of this study is to evaluate the level of contamination of PM₁₀;PM_2.5 by heavy metals and their impact on the health of populations exposed to these pollutants in the Tongon gold mine area. The sampling and measurement of suspended particulate matter (PM₁₀ and PM_2.5) were done using a MiniVol TAS passive air sampler. Heavy metal concentrations were determined by inductively coupled plasma mass spectroscopy (Nex ION 2000 ICP-MS, USA). The results indicate that the average concentrations of suspended particles (PM_2.5 and PM₁₀) obtained are all above the recommended exposure limits. In addition, among the heavy metals contained in the suspended particles, the concentrations of arsenic and nickel are high and all above the standard limit values. The assessment of the health risks related to the inhalation of PM₁₀ particles reveals that their inhalation over a long period could cause a carcinogenic risk.The Tongon mine, the largest gold mine in C?te d’Ivoire, has been in operation since April 2010. However, to our knowledge to date, no study has been conducted on metallic contamination in suspended particulate matter (PM₁₀ and PM_2.5) where there is a lack of information on the carcinogenic and non-carcinogenic risk to human health associated with the exposure of populations in the Tongon area to these pollutants. The general objective of this study is to evaluate the level of contamination of PM₁₀;PM_2.5 by heavy metals and their impact on the health of populations exposed to these pollutants in the Tongon gold mine area. The sampling and measurement of suspended particulate matter (PM₁₀ and PM_2.5) were done using a MiniVol TAS passive air sampler. Heavy metal concentrations were determined by inductively coupled plasma mass spectroscopy (Nex ION 2000 ICP-MS, USA). The results indicate that the average concentrations of suspended particles (PM_2.5 and PM₁₀) obtained are all above the recommended exposure limits. In addition, among the heavy metals contained in the suspended particles, the concentrations of arsenic and nickel are high and all above the standard limit values. The assessment of the health risks related to the inhalation of PM₁₀ particles reveals that their inhalation over a long period could cause a carcinogenic risk.

关 键 词：Particulate Matters (PM₁₀ and PM_2.5) West Africa Tongon Heavy Metals INHALATION Carcinogenic Risk Metallic Contamination 

分 类 号：TG1[金属学及工艺—金属学]