An ecological risk assessment determines the likelihood that one or even more environmental factors, including such pollution, disease, invasive species, and global warming, will have an impact on the ecosystem. The type and probability of negative consequences happening to species such as people, animals, plants, or microorganisms as a result of their exposure to stressors are determined through risk evaluation. A chemical an invasive species (such as alien plants), and even changes in the physical environment may all be stressors. The emphasis of this section is on chemical risk assessment. Chemicals may be found in the environment, including copper, or they can be manufactured by people, such as medications. A hazard assessment is classified as either "human health" or "environmental" depending on whether people, other creatures, or ecosystems are in danger. The phrase "ecological risk assessment" is being used here to refer to both types of assessments. In this paper, the author talks about the risk assessment of chemicals on the environment. In the future, this study helps to understand about impact of chemical risk assessment in the environment.