Coastal aquatic ecosystems are environments increasingly affected by human activities due to urban discharges and their use as dumps. The objective of this study is determine the profiles metallic elements concentration (Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Cd, Pb) Cotonou channel sediments evaluate quality. For this, surface (0-5cm) were sampled at 13 sites along channel. Thus,Geoaccumulation I...

The impact of heavy metal contamination caused by human activities on mangroves, rivers, estuaries, and coastal wetlands has gained attention recently. In this study, the presence metals in mangrove Sepang Besar River's surface sediments was examined. As, Mo, Pb, Cr, Co, Cd, Ni, Hg concentrations sand were measured using inductively coupled plasma mass spectrometry (ICP-MS). Across all sampling...

A three-year study, designed to record the level of potentially toxic elements within urban complex in city Volos, Greece, was carried out between 2018 and 2020. For needs aforementioned 62 surface (0–15 cm) soil samples were collected each year (i.e., 186 total) from an area 3.65 km2, average value pseudo-total metal concentration measured. Soil pollution indices, such as contamination factor ...

A study has been conducted to evaluate the degree of Heavy Metals (HM)contamination on farm soils Wakwa’s, using enrichment factor (EF), geo-accumulation index (Igeo), pollution load (PLI), Ecological risk factors (Eir), indices(PER) and statistical analysis.In currentstudy, composite surface agricultural soil samples were collected in 4 sites analyzed for concentration HMs including As, Ba, Co...

Soil pollution refers to the contamination of soil by harmful substances that can have adverse effects on plant and animal life, it also negative affects health-being humans. The sources include industrial activities, agricultural practices, mining transportation activities. contaminants in heavy metals, pesticides, herbicides, fertilizers, petroleum products, other chemicals. These seep into a...

The evaluation of potential ecological risk aquatic sediments associated with the presence potentially toxic elements (PTE) determines its degree danger on native biota. In this work, V, Ti, Cr, Ni, Cu, Zn, As, Se, Cd, Sn, Hg and Pb in superficial is explained three different areas Lake Maracaibo: El Tablazo Bay, Strait Maracaibo lake itself, through a multi-guideline approach (elemental enrich...

The possible effect of contrails in modifying the weather is reconsidered in the light of information obtained from ground-level contrails in Alaska. It appears likely that inadvertent cloud seeding b y jet aircraft may be of the same order of magnitude as that attained in commercial cloud seeding operations. Further investigation is needed; but in the meantime, the possibility of contrail cont...

One of the most crucial problems in geo-engineering is the instability of unsaturated slopes, causing severe loss of life and property worldwide. In this study, five novel meta-heuristic methods are employed to optimize locating the Critical Failure Surface (CFS) and corresponding Factor of Safety (FOS). A Finite Element Method (FEM) code is incorporated to convert the strong form of the Richar...

Angiogenesis plays a key role in tumor growth and metastasis. The transforming growth factor alpha (TGF-alpha)-epidermal growth factor receptor (EGFR) autocrine pathway controls in part the production of angiogenic factors such as vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) in cancer cells. In this study, we have evaluated the antiangiogenic and antitumor...