Bioaccumulation of arsenic in aquatic plants and animals near a municipal landfill

Genotoxicity and Oxidative Stress in Experimental Hybrid Catfish Exposed to Heavy Metals in a Municipal Landfill Reservoir

“…Similar to other polluted landfills, heavy metal contamination in the Khon Kaen landfill leachate and sediment of the reservoir can be transferred and accumulated in aquatic organisms [10]. The bioaccumulation phenomena were identified by the reports of Intamat et al [6] and Promsid [38], who demonstrated heavy metal accumulation in plants and fish, for example, Monopterus albus, Channa striata and C. batrachus. Intamat et al [6] showed that As in landfill fish B. gonionotus, R. tornieri, A. testudineus and O. niloticus exceeded Thailand's food quality standards.…”

“…The bioaccumulation phenomena were identified by the reports of Intamat et al [6] and Promsid [38], who demonstrated heavy metal accumulation in plants and fish, for example, Monopterus albus, Channa striata and C. batrachus. Intamat et al [6] showed that As in landfill fish B. gonionotus, R. tornieri, A. testudineus and O. niloticus exceeded Thailand's food quality standards. Sriuttha et al [7] revealed that the Cr concentration in A. testudineus and R. tornieri as well as the Cd concentration in B. gonionotus and O. niloticus exceeded the limit of international standards (FAO, USA), and the Pb concentrations in four fish species exceeded the limit of international standards.…”

“…Due to improper landfill waste management, toxic leachate that can spread heavy metals and other toxic substances around the Khon Kaen municipal landfill environment is present [2]. The major metal contaminants in the Khon Kaen municipal landfill are chromium (Cr), cadmium (Cd) and lead (Pb) [3][4][5][6][7]. Sriuttha et al [7] demonstrated that concentrations of Cr, Cd and Pb in the water and sediment near the municipal landfill were 0.016 ± 0.009, not detected and 0.009 ± 0.0006 mg/L, and 19.91 ± 0.96, 0.47 ± 0.23 and 5.40 ± 0.13 mg/kg, respectively, whereas Intamat et al [6] determined that arsenic (As) concentrations in the water, sediment and tilapia fish muscles in the landfill environment were 0.006 ± 0.002, 1.08 ± 0.64 and 0.16 ± 0.16 mg/kg, respectively.…”

“…The major metal contaminants in the Khon Kaen municipal landfill are chromium (Cr), cadmium (Cd) and lead (Pb) [3][4][5][6][7]. Sriuttha et al [7] demonstrated that concentrations of Cr, Cd and Pb in the water and sediment near the municipal landfill were 0.016 ± 0.009, not detected and 0.009 ± 0.0006 mg/L, and 19.91 ± 0.96, 0.47 ± 0.23 and 5.40 ± 0.13 mg/kg, respectively, whereas Intamat et al [6] determined that arsenic (As) concentrations in the water, sediment and tilapia fish muscles in the landfill environment were 0.006 ± 0.002, 1.08 ± 0.64 and 0.16 ± 0.16 mg/kg, respectively. From previous reports, these toxic metals can spread from hazardous waste, such as metal containers, light bulbs and batteries, into leachate and surrounding reservoirs [8,9], and can be absorbed and accumulated in aquatic organisms, including fish [10].…”

“…From previous reports, these toxic metals can spread from hazardous waste, such as metal containers, light bulbs and batteries, into leachate and surrounding reservoirs [8,9], and can be absorbed and accumulated in aquatic organisms, including fish [10]. Intamat et al [6] and Sriuttha et al [7] found that the Cr concentration in Anabas testudineus and Rasbora tornieri as well as the Cd concentrations in Barbonymus gonionotus and Oreochromis niloticus exceeded the limit of the international standard; additionally, Pb and As concentrations in all four Khon Kaen landfill fish species exceeded the international standards. Generally, fish living in toxic metal-contaminated reservoirs can absorb the metals through their gills, skin and digestive tract [2,11,12], which can lead to biomagnification, and can cause health risks to consumers [13].…”