Pollution on Marine Mammals
Save the ocean
Effect on the mammals
Types of pollution
Petroleum products used for fuel are mined from the earth deep below the ocean surfaces. Occasionally, offshore drilling rigs experience accidental leaks. Ships carrying oil have also been known to cause devastating oil spills, but these are large-scale disasters. Oil seepage occurs on a smaller but continuous level, leaching from factories and other plants. In fact, one of the greatest sources of oil pollution is people who pour various cooking oils and grease down the sink drains in their homes.
A portion of the billions if not trillions of tons of trash produced each year finds its way into ocean waters. This comes as no surprise to anyone who has seen plastic bottles and other waste floating onto the beaches. Trash is often dumped from ships and offshore drilling rigs directly into the sea. Aside from trash, industrial waste is one of the major issues when it comes to ocean dumping. These toxic chemicals, including radioactive chemicals, are a death sentence for ocean life forms.
Animal waste and human wastewater from toilets and other household activities such as bathing and laundering as well as food preparation are often washed directly into the ocean from coastal communities. Untreated sewage contains microbes or pathogens that precipitate disease when infected seafood is consumed or skin contact occurs. In some cases, solid sludge from treated sewage is also dumped into the oceans.
Air pollution and ocean pollution are inextricably linked. Pollution from automobiles and factories is translated into acid rain, which falls into the ocean and mingles with its waters.
Rainwater washes pesticides and fertilizers into smaller water sources such as streams and rivers, which ultimately carny those toxic chemicals into the ocean. Another source of agricultural runoff is animal waste, which is not treated like human sewage. For example, runoff from Midwestern farms into the Mississippi River is responsible for the "Dead Zone" in the Gulf of Mexico, which features very little marine life.
Sunscreen is a lesser known source of pollution, but can have grave effects. The chemicals in sunscreen worn by swimmers and divers washes off into the ocean water and coats plant-life on coral reefs and suffocates them. Vast swaths of reefs have been destroyed, but there are eco-friendly sunscreen products on the market that help to prevent this terrible side-effect, while still protecting skin from cancerous sunrays.
The styrofoam cup has somehow got stuck onto the face of the sea utter
The oil polluted into the ocean, has gotten onto the duck
The plastic that was littered made its way around the sea lion's neck