According to Environmental Science and Pollution Research, if not used correctly, bleach can harm humans, animals, and the environment. It can irritate the skin and eyes, make breathing hard, and cause allergic reactions in people. Many animals can't handle bleach, and being around it can hurt their health. If bleach is thrown away incorrectly, it can harm aquatic life and plants and release harmful chemicals into the air. Follow the directions carefully, wear protective gear, don't mix with other chemicals, and get rid of it the right way to reduce the risks.