Publications by authors named "Kamonthip Senachai"
The aim of this study was to analyze and compare the Hg, Pb, Cd, and Mn levels in egg feed, soil, and water among laying hens, laying ducks, and free-grazing duck farms in contaminated and uncontaminated areas. This study revealed that the Hg concentration in the eggs of free-grazing ducks was significantly greater than that in the eggs of laying hens and ducks in both contaminated and uncontaminated areas. However, the Pb and Mn levels in the eggs of laying ducks and free-grazing ducks were significantly greater than those in the eggs of laying hens in the contaminated area.
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- Gold-mining activities are causing heavy metal pollution (Hg, Pb, Mn) that threatens public health in nearby areas, prompting a study in northern Thailand focused on chicken and duck farms.
- The study revealed that concentrations of these heavy metals were significantly higher in free-grazing ducks and their eggs located within 25 km of the mine compared to those farther away, indicating severe contamination issues.
- Health risks from heavy metal exposure were highlighted, particularly a higher incremental lifetime cancer risk for local populations, especially affecting younger age groups, underscoring the need for ongoing health surveillance and control measures for poultry near the mine.
The proposes of this study were to compare THg (total mercury), Pb(Lead), Cd(Cadmium), and Mn (Manganese) contamination in poultry blood between polluted areas (≤ 25 km) and unpolluted areas (> 25 km) adjacent to the largest gold mining in northern Thailand. The THg level in the free-grazing duck in polluted areas was significantly higher than unpolluted area. Both THg and Pb levels in free-grazing duck were also highest in polluted areas.
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