Trace metals refer to elements that are present in very small concentrations in natural environments such as water, soil, and air. These metals include elements such as copper, zinc, lead, mercury, and cadmium. Despite their low concentrations, trace metals can have significant impacts on human health and the environment due to their toxic nature. Research in the area of trace metals focuses on understanding the sources, distribution, and behavior of these metals in the environment, as well as their potential effects on ecosystems and human health. This research often involves monitoring trace metal concentrations in different environmental compartments, studying their transport and fate, and assessing their bioavailability and toxicity. Some common methods used in trace metal research include analytical techniques such as atomic absorption spectroscopy, inductively coupled plasma mass spectrometry, and X-ray fluorescence spectroscopy. Additionally, studies may also investigate the potential remediation and management strategies for reducing trace metal contamination in the environment. Overall, research in trace metals plays a crucial role in assessing and mitigating the risks associated with these toxic elements.