A comparative study of surfactant distribution and fate (western and eastern) Egyptian Mediterranean coasts focusing on its environmental toxicity.

One of the most difficult-to-manage new contaminants constantly released into the environment is linear alkylbenzene sulphonate (LAS), an anionic surfactant. Significant volumes of LAS are received by the Mediterranean coast of Egypt. The current study is a comprehensive assessment of the environmental fate of the LAS 1505 km off the Mediterranean coast of Egypt in the fall of 2023 in order to track its geographic spread and eventual demise in the water column.

Activity levels of some radionuclides in Mariout and Brullus lakes, Egypt.

Mariout and Brullus are two of the highly fish-productive lakes in the northern coast of Egypt along the Mediterranean Sea. They are widely used to drain industrial wastes, sewage and agriculture drainage. The activities of (238)U, (232)Th, (40)K and (137)Cs were measured in the uppermost part of the surface sediments of the two lakes, using gamma-ray spectrophotometry.

Some radioactive-elements in the coastal sediments of the Mediterranean Sea.

The radioactivities of (234+235)U, (232)Th, (40)K and (137)Cs were measured in the coastal sediments of the western Mediterranean Sea between Alexandria and Salloum, Egypt. The recorded activities of the natural radionuclides were within the range of those measured worldwide. The highest activities of (234+235)U and (40)K (166.