Some of the more than 100 million chemicals produced by humans are constantly threatening ecosystems and human lives. The exponential increase of various chemical substances is attracting attention as an increasing cause of various human diseases in our society. Today, we live in a reality where more than 5,000 chemicals per day are registered for the industrial purpose, but there has limited information on the safety of these chemicals for ecosystems and human beings and how to manage them. Human & Ecological Analytical Laboratory (HEAL) have studied the environmental fate and bioaccumulation of chemical substances in multiple environmental compartments, ecosystem, and humans, to understand the adverse health effects associated with the exposure of various environmental pollutants on ecosystems and humans. In particular, the HEAL aims to reduce and manage the chemical exposure to ecosystems and humans through precise and accurate measurement of toxic chemical substances based on advanced analytical techniques.