Study the accumulation of minerals and heavy metals in Ulva algae, Cladophora, Polysiphonia and Laurencia algae samples at eastern north region of Libya coast

Different minerals including ( Na+, K+ and Ca++) in addition to iron copper) were determined different algae samples collected from some region at Al –Gabal –Khder coast (Libya). The (Ulva algae, Cladophora Polysiphonia Laurencia algae).The mineral contents measured by Flamephotometer, while the (iron levels estimated spectrophotometeric method. results showed variations between of studied samples. Where that sodium, calcium potassium fluctuated ranges of: (24 – 91 µg/ g) (4 13 (3 16 g), respectively. While copper ranged between: (0.14 - 1.64 (0.21 2.27