Search results
Results from the WOW.Com Content Network
Almost 20% of plastic debris that pollutes ocean water, which translates to 5.6 million tonnes, comes from ocean-based sources. MARPOL, an international treaty, "imposes a complete ban on the at-sea disposal of plastics". [52] [53] Merchant ships expel cargo, sewage, used medical equipment, and other types of waste that contain plastic into the ...
Plastic degradation in marine bacteria describes when certain pelagic bacteria break down polymers and use them as a primary source of carbon for energy. Polymers such as polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET) are incredibly useful for their durability and relatively low cost of production, however it is their persistence and difficulty to be properly ...
A more recent concern in microplastic pollution is the use of plastic films in agriculture. 7.4 million tons of plastic film are used each year to increase food production. [22] Scientists have found that microbial biofilms can form within 7–14 days on plastic film surfaces, and have the ability to alter the chemical properties of the soil ...
The post Everything Elephants: A Free Five-Day Lesson Plan for Kids appeared first on A-Z Animals. Show comments. Advertisement. Advertisement. In Other News. Entertainment. Entertainment.
In 2018 approximately 513 million tonnes of plastics wind up in the oceans every year out of which the 83,1% is from the following 20 countries: China is the most mismanaged plastic waste polluter leaving in the sea the 27.7% of the world total, second Indonesia with the 10.1%, third Philippines with 5.9%, fourth Vietnam with 5.8%, fifth Sri ...
Microplastics are fragments of plastic less than 5 mm (0.20 in) in length, according to the U.S. National Oceanic and Atmospheric Administration (NOAA) [61] [62] and the European Chemicals Agency. [63] US EPA researchers define microplastics as plastic particles ranging in size from 1 nanometer up to 5 mm, which is 5 million nanometers. For ...
Debris on beach near Dar es Salaam, Tanzania Debris collected from beaches on Tern Island in the French Frigate Shoals over one month. Researchers classify debris as either land- or ocean-based; in 1991, the United Nations Joint Group of Experts on the Scientific Aspects of Marine Pollution estimated that up to 80% of the pollution was land-based, [5] with the remaining 20% originating from ...
Moore is the founder of the Algalita Marine Research and Education [4] in Long Beach, California.. In 2008 the Foundation co-sponsored the JUNK Raft project, to "creatively raise awareness about plastic debris and pollution in the ocean", and specifically the Great Pacific Garbage Patch trapped in the North Pacific Gyre, by sailing 2,600 miles across the Pacific Ocean on a 30-foot-long (9.1 m ...