With the rapid rate of industrial and technological advancement across the world, a staggering amount of waste is generated by human activity every day, and much of this waste ends up polluting water bodies such as oceans, threatening marine life
Ocean pollution sources can be categorized into two; point source pollution and nonpoint source pollution.
Pollution that originates from a single source like an oil or chemical spill is known as point source pollution. This type of pollution usually has a very large impact on water bodies but luckily, they occur less often.
The other source of pollution (non-point source) is the biggest source of ocean pollution and it occurs as a result of overflow from many small sources. Some examples of non-point source pollution include; cars, trucks, boats, livestock ranches and septic tanks.
According to the National Oceanic and Atmospheric Administration, (U.S.A)
- Approximately 1.4 billion pounds of trash per year enters the ocean.
- Over one million seabirds are killed by ocean pollution each year.
- Three hundred thousand dolphins and porpoises die each year as a result of becoming entangled in discarded fishing nets, among other items and one hundred thousand sea mammals are killed in the ocean by pollution each year.
Oil spills are the fastest source of ocean deterioration and they are more harmful than trash and waste. It is interesting to know that only a handful of spills come from actual oil spills. Most occur as a result of drainage from land and this causes severe damage by changing the entire ecosystem of an affected area.