Monitoring Changes in Atmospheric Silicon Pollution and the Usefulness of Pseudotsuga menziesii in Reducing Pollution
DOI:
https://doi.org/10.24925/turjaf.v14i9.2418-2423.8515Keywords:
Biomonitor, Silicon, Phytoremediation, Heavy metal, Pseudotsuga menziesiiAbstract
Heavy metal pollution has become a global problem that has been steadily increasing over the last century due to developments in the industrial sector, posing a significant threat to human health. Monitoring changes in airborne heavy metal pollution is of great importance due to its significance for human health. Silicon (Si) is used intensively in urban areas, particularly in construction activities. As a result, its concentration in the air is constantly increasing. Moreover, Si is one of the elements that pose a threat to human health. Therefore, monitoring and reducing changes in atmospheric Si pollution is of great importance. This study aimed to determine the usability of Pseudotsuga menziesii, which is intensively cultivated in urban areas where heavy metal pollution can be high, for monitoring and reducing changes in atmospheric Si pollution. Within the scope of the study, the changes in Si concentration in the trunk sections of Pseudotsuga menziesii grown in Düzce, one of the five most polluted cities in Europe according to 2021 data, were evaluated based on organ (outer bark, inner bark, and wood), direction, and age range over the last 60 years. The results showed that Si concentrations in the outer bark were quite high and that Si could be transferred within Pseudotsuga menziesii wood. According to these results, Pseudotsuga menziesii is not a suitable biomonitor for monitoring changes in Si pollution. However, it has been determined that it is a suitable species for use in reducing pollution, particularly because it can accumulate high levels of Si in its woody parts.
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