Countries with smaller land areas, lengthier coastlines, increased rainfall, and inadequate waste management infrastructures are more prone to having plastic waste end up in the ocean. More than 1,000 rivers account for 80% of global annual emissions, which range between 0.8 billion and 2.7 billion kilograms per year, with small urban rivers among the most polluting.
The Philippines is the leading country on the list of top 10 ocean plastic contributors – generating an estimated 356.371 million kilograms of plastic waste in our ocean. This is followed by India (126.513 million kilograms), Malaysia (73.098 million kilograms), China (70.707 million kg), Indonesia (56.333 million kilograms), Myanmar (40.000 million kilograms), Brazil (37.799 million kilograms), Vietnam (28.221 million kg), Bangladesh (24.640 million kilograms), and Thailand (22.806 million kilograms). The primary contributors to ocean plastic pollution are concentrated in developing Asian nations, with the exception of Brazil.
Source: "Plastic Pollution by Country 2023", World Population Review, https://worldpopulationreview.com/country-rankings/plastic-pollution-by-country