**1. Introduction**

Chemical production has increased from one million tons in 1930 to over 400 million tons now, with around 100,000 different chemical substances registered on the European Union market, of which 30,000 to 70,000 are used daily [1, 2]. The most of chemicals in water bodies, including heavy metals, derive from wastewater from industrial, agricultural, and domestic sources, as well as municipal sewage treatment plants [3]. Around 10% of the globally available runoff is being used by industries and municipalities, resulting in a stream of effluent that flows into rivers, lakes, groundwater, or coastal water. As a result, each year over 300 million tons of heavy metals from industrial and consumer products, including Cr, Cu, Zn, As, Cd, Pb, and Sn, find their

way into natural waters [4]. Cement plants, coal and energy bases, textiles, ship breaking/recycling, and tanneries are only a few examples of key types of businesses that have become important for macro and microeconomic growth as well as heavy metal pollution. Agriculture, which uses 140 million tons of fertilizers and several million tons of pesticides each year, contributes to further pollution [4]. Chemical pollution is mainly a threat to developing countries due to the lack of compliance with environmental and safety regulations. Low labor costs and favorable geographic locations have made the ship-repairing industry highly profitable, releasing considerable quantities of heavy metals into the environment [5]. Even at low levels of exposure, these metals are hazardous to the physical and chemical functions of animals and can damage their several organs such as brain, liver, and reproductive organs. As a result, monitoring and assessment can aid with coastal environmental protection management and planning. When using heavy metals, trace metals analysis can be used to detect and identify small amounts of metals in a sample, which is important for quality control and regulatory compliance.

When using heavy metals, trace metals analysis can be used to detect and identify small amounts of metals in a sample, which is important for quality control and regulatory compliance.
