The study looked at how well Acorus calamus plants can grow in different types of polluted water. They found that the plants grew best in waters with medium to high pollution levels. In extremely polluted water, the roots of the plants were shorter and had more fibers. However, the leaves adapted and grew better after an initial slow period. Overall, Acorus calamus showed good resistance to pollution and could thrive in moderately to heavily polluted waters, making it a good choice for cleaning up polluted water bodies.