Why do you think nurdles are extremely dangerous when present in wastewater?
Nurdles are very small in size
Nurdles are non-biodegradable
Nurdles are small plastic particles. Due to their small size, fish can eat them easily. When those fish are consumed by us, nurdles enter our bodies. Nurdles being plastics, are non-biodegradable and thus can be present in the environment for millions of years. This makes them extremely dangerous.