It identifies pollutions and nuisances that can affect the aquatic fauna and flora. Environmental risk factors include smoking, lead exposure, and other types of air pollutions. These catastrophic events lead to major cities controlling and measuring atmospheric pollutions. There are many transit paths that allow for plastics and pollutions to enter oceans. Also that he researched air pollutions impact on mortality. Various species such as walruses are under threat of possible pollutions. It is easy to practice and helps us curb air, water and land pollutions. Mining has contributed to many of the air pollutions being released into the air. These pollutions have a direct effect on the marine life in these regions. The jugum penis or pollutions ring was an anti-masturbatory device developed in the 18th century. The biogeochemist William Schlesinger queries whether thresholds are a good idea for pollutions at all. They signify the washing-away of the pollutions of the Lord's people (Isa.