Ans: When encountering the sargassum near the beach it is important to find its state. If it is alive, it is not much hazardous to human beings. When it reaches land and dies, it begins to release hydrogen sulfide gas. It may create irritation on interacting with human skin.  The hydrogen sulfide gas in the water will create a smell of rotten eggs. Breathing of such toxic gases may create respiratory issues. The patients will experience complications as shortness of breath, dizziness, vertigo, headache and may even experience serious disorders.