This paper evaluates the greenness of Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) methods for determination metal and metalloid. ICP-OES is a precise technique for multi-element quantification. making it vital for environmental monitoring by detecting trace levels of toxic elements like cadmium. lead. https://www.roneverhart.com/Turbosound-TS-18SW700-8A-18-Low-Frequency-Loudspeaker-p31480/