Ensuring environmental sustainability is crucial as nanotechnology continues to evolve. The potential for nanopollution is a serious concern, where nanoparticles could contaminate air, water, and soil. Developing eco-friendly nanomaterials and sustainable manufacturing processes is essential. This involves creating materials that are biodegradable or can be easily removed from the environment. Researchers are also exploring ways to use nanotechnology to address environmental issues, such as water purification and carbon capture.