anthropogenic

Sediments can act as pollutant sink as well as source of secondary contamination in aquatic ecosystems. The pollution characteristics of eight heavy metals in the sediments of Ikwu River, Umuahia were investigated using eight assessment indices. The study was carried out between January and June 2022 in three stations. Results showed that cadmium exceeded permissible limit, copper exceeded limit only in February 2022 while others were within limits.

The expansion of urban agglomerations increases the anthropogenic impact on the environment. Forests are more likely to suffer from this pressure. The process of degradation of forested green areas takes place. It is primarily manifested in the change of the spatial structure of forest parks and synanthropy of forest parks flora. We observe phytocenotic degradation, recreational degradation and degradation resulting from improper care of forest parks.