Distribution of Micro-plastics in Marine Environment

Micro-plastics are minute plastic
pieces less than 5 mm in length that
can be detrimental to our oceanic
and marine life.
In this poster, environmental
pollution instigating from micro-
plastics has been done with the
following objectives:
•To summarize their sources
•To discuss their distribution
•To discuss their ecological impacts
ENVIRONMENTAL POLLUTION
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It is estimated that there could be around 7000-
35000 tons of plastic floating in the ocean .These
pollutants, once in the water, are transported
around the word by oceanic waves where they
persist and mount up. Micro-plastics are suspended
in the surface waters, coastal waters, estuaries,
water columns, beaches, rivers, as well as deep-
sea sediments.
Micro-plastic debris suspending on the world’s ocean
has a huge ecological impact. For example they:
Lead to sub-lethal or mortality of animals and plants
through entanglements
Alter benthic community structure
Emit dangerous chemicals which pollute the
ecological cycle
Facilitate the incursion of alien species
Micro-plastics have adverse effects on the entire
marine life. They also pose danger to the entire
ecological process because they lead to acid rain
Micro-plastics enter the ecosystem thorough various
sources such as:
Industrial processes
Fishing nets
Plastic bags
Soda bottles
Cosmetics
Other sources of primary and secondary micro-plastics
include dust/product emission during wear and tear.
The above sources are just the main ones but there is a
wide array of processes which act as sources of these
pollutants.
Despite the increased scientific interest in expanding
the knowledge base on microplastics, many
questions still remain unanswered. Their distribution
is massive and their effects on the ecology,
economy, and society cannot be underestimated. A
lot still needs to be done to reduce their spread in the
world’s ocean.
An intensive literature review has been conducted
to achieve a number of objectives such as:
Summarize the nomenclature, properties, and
sources of micro plastics.
Evaluate methods through which these
substances are distributed in the ocean
Assess their environmental impact.
Literature review will be based on currently
published materials addressing the issue of micro-
plastics.
METHODOLOGICAL APPROACH
SOURCES OF MICRO-PLASTICS
conclusion
Ecological impacts of micro-plasDISTRIBUTION OF MICRO-PLASTICS IN THE
MARINE ENVRIONMENT
SUMMARY OF THE TOPIC
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