The New Lexicon Webster's Dictionary denoted that the word "pollute" means to make something unhealthy. Given by said dictionary, the word "pollution" may be defined as something that makes a pure thing impure. Scientifically, pollution is the chemical gaseous and organic wastes, which contaminate air, soil or water. Anything that pollutes these earth's elements is called "pollutant."
A maritime book describes water pollution as the alteration of water, which reduces the quality of it's usefulness to people, plants, animals and properties. Water pollution can be considered as a major pollution in the Philippines and even in other developing countries.
Industrial buildings can cause water pollution
There are many causes of water pollution according to a renowned author. One example is the use of fertilizers with chemical contents; these are harmful for both human beings and animals because they contain poisonous substances. Furthermore the author commented that substantial quantities of solid wastes mixed with bodies of water such as lakes, swamps, rivers and many others cause contamination of drinking water and reduces the ability of water to perform natural purification.
Ocean dumping is one source of marine pollution
United Nations Conference on Environment and Development define pollution as an introduction of man, directly, or indirectly, of substances or energy into the marine environment resulting in such deleterious effects as harmful to living resources, hazards to human health, hindrance to marine activities including fishing, impairment of quality for use of seawater and education of amenities.
Marine pollution is harmful to marine life
The six sources of marine pollution are as follows:
- land-based and coastal-based activities
- ocean dumping
- vessel-source pollution
- atmospheric sources of pollution
- sea-bed mining
- continental shelf-drilling activities
A ship is an example of vessel-sourced pollution
Land-based activities contribute an estimated 70% of all marine pollution. The UNCED highlighted the pollutants coming from land-based and coastal-based activities. They are as follows: land use construction of coastal infrastructure; human settlement; agriculture; forestry and tourism industries. Marine pollution from land-based activities basically refers to pollution coming from the use of chemicals in construction, production and manufacturing food products as well as improper use of lands. And lastly the wide use of chemicals by various land-based industries increases the spread of major pollutants.
Factories using chemicals oftentimes diffuse, release or discharge the substances into the river basins and catch basins. These chemicals together with liquid wastes continue flowing toward the seas. Today, ocean floor is reached by modern instruments for the purpose of extracting minerals such as gold, sand, diamonds and oil. The pollution impacts of activities involving extraction of mineral deposits from the ocean floors are believed to be contributors to marine pollution commented a renowned author.
Resource: MARTA, Philippines