The fat used in the preparation of that delicious friturinha can cause many problems if it is thrown in the sink or in the drains. The oil does not dissolve in the water and, when it falls into a watercourse, it can cause uncontrolled oxygen, death of fish and other species. Each liter of oil can contaminate up to 25 thousand liters of water. Find out how and where cooking oil is collected in your city and dispose of correctly.