The pollutants that cannot be broken down to simple and harmless products
There are different types of pollutants which are categorized on the basis of degradability. The non-biodegradable pollutants are the pollutants which cannot be degraded easily. They cannot be degraded by the activities of the microorganisms. These pollutants are not converted to simpler compounds by the microbial degradation. Whereas the biodegradable products are decomposed by the microbes.