Montesinos et al., (2020)[8] study of the total amount of 16,123 beach litter items to determine the source of marine debris at 40 bathing areas along the coast of Cádiz, Spain.
Montesinos et al.'s study (2020)[8] demonstrate that some marine debris can travel hundreds of kilometers and end up very far from its source because of the ocean and sea currents.
[10] de Scisciolo et al. (2016)[10] study on ten beaches along the leeward and windward coastlines of Aruba that is one of the Lesser Antilles islands located in the Southern Caribbean Sea.
[11] According to Unger and Harrison, 6.4 tons of pollutant dumps the oceans every year, and the most of them are consist of by durable synthetic fishing gear, packaging, materials, raw plastic, and convenience items.
Such extremely durable plastic gear cannot decompose in the seawater and marine environment and they wash up on beaches driven by inshore currents and wind.
[10][20] Also, a combination of plastic and seawater materials such as polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and heavy metals can be fatal for marine life.
[8] Moreover, consumption of micro-plastics by larger marine organisms cause obstructions of the intestinal tract that leads to starvation and death because of reduced energy fitness.
[26] The index determines the level of sustainability and cleanness of the countries and their beaches through classification notes such as A for excellent, B for good, C for regular, and D for bad.
[29] The BQI assesses many aspects of beaches, not just litter or overall cleanliness, but anthropocentric impacts and long term effects to act somewhat as a checklist for environmental quality issues.
Hutchings et al.'s (2000) study shows that a clean beach is a very important determinant of many local and international tourists in South Africa.
[35][36][37][38][39][40] Beach cleaning volunteers demonstrated more accurate knowledge of the amount and type of waste in the local environment, as well as greater awareness of the causes and consequences of marine litter.
[35][36][37][38][39][40] For example, Hartley et al. (2015) found that students that volunteered to clean a local beach with their school could more accurately identify the primary origins of marine litter and estimate the lifespan of plastic.
[35] By highlighting the connection between human behavior and marine litter, beach cleaning increases the likelihood that participants will habitually remove and appropriately dispose of coastal trash, as well as engage in prevention and mitigation efforts.
In doing so, Wyles et al. (2017) discovered that individuals that participated in beach cleaning reported a significantly greater increase in their intention to live an environmentally-friendly lifestyle and their awareness of marine issues compared to other test groups after the intervention.
[42][43][44][45][46][47][48] For example, Koss and Kingsley (2010) found that individuals who volunteered at protected marine areas in Australia experienced greater mental and emotional well being and enhanced connection with the natural environment.
Beach goers in Wyles et al. (2016) even described feelings of sadness or anger when confronted with litter, explaining that these emotions emerged because the trash negatively impacts the environment and distracts from the beauty of the landscape.
[52][53] This beach cleaning may be done by professionals company, civic organizations, the military or volunteers such as the Great Canadian Shoreline Cleanup and Marine Conservation Society.
Mechanical beach cleaning is defined as litter and/or organic material removal that relies on the work of automatic or push machinery that rakes or sieves the most superficial layer of sand.
The elimination of this food source impacts organisms ranging from meiofauna to predator birds, resulting in a loss of biodiversity and a decrease in species abundance.
Overall, the presence of wrack allows for detritivores, like isopods and talitrid amphipod, invertebrates like beetles, foraging birds, and scavenging vertebrates like mice, rats, foxes, and badgers to live and feed in that environment.
[67][66][65] Additionally, microbes that thrive in the presence of feces, called fecal indicator organisms, can reproduce in the conditions created by decomposing wrack.
[60] As vegetation abundance and the height and presence of dunes and hummocks decrease, sand transport patterns change in a way that furthers the extent of flattened topography.
This method allows urban and more intensely used beaches to manage larger quantities of litter while minimizing the environmental impact of mechanical cleaning.
The students who participated in beach cleaning also saw a significantly greater increase in their scores for perceived knowledge and environmentally-friendly behavior compared to the other cohort.
For example, Hartley et al. (2015) explains that students who participated in beach cleaning with their school encouraged their friends and family to join them in adopting mitigation and prevention behaviors.
[35] Volunteering improves participants' awareness and knowledge about marine litter and increases the likelihood that individuals will take continued action to address the issue.
[35][37][38][39][40][41] For example, Hartley et al. (2015) claims that after volunteering to clean a local beach with their school, children reported engaging in mitigation and prevention behavior more frequently, such as purchasing fewer, single-use plastic items, appropriately disposing of their waste, and recycling.
[40][48] Multiple studies have determined that volunteers, whether organized through schools and universities or individual interest, can significantly reduce the quantity of solid waste on beaches.
[38] Wyles et al. (2017) studied the impact various coastal activities—beach cleaning, rock pooling, and walking on the beach—had on well being and discovered that all three led to a similar betterment in mood.
[38] While further research has not been completed on the mental and emotional benefits of beach cleaning, volunteers who promote environmental stewardship have reported improvements in their well being.