Movement of these pollutants involves two main processes:
- Bioaccumulation
refers to how pollutants enter a food chain. there is an increase in concentration of a pollutant from the environment to the first organism in a food chain.
- Biomagnification
refers to the tendency of pollutants to concentrate as they move from one trophic level to the next. there is an increase in concentration of a pollutant from one link in a food chain to another.
In order for biomagnification to occur, the pollutant must be: long-lived, mobile, soluble in fats, biologically active.
If a pollutant is not active biologically, it may biomagnify, but we really don’t worry about it much, since it probably won’t cause any problems Examples : DDT.
ARUNACHAL PRADESH PSC Notes brings Prelims and Mains programs for ARUNACHAL PRADESH PSC Prelims and ARUNACHAL PRADESH PSC Mains Exam preparation. Various Programs initiated by ARUNACHAL PRADESH PSC Notes are as follows:-- ARUNACHAL PRADESH PSC Mains Tests and Notes Program
- ARUNACHAL PRADESH PSC Prelims Exam - Test Series and Notes Program
- ARUNACHAL PRADESH PSC Prelims and Mains Tests Series and Notes Program
- ARUNACHAL PRADESH PSC Detailed Complete Prelims Notes