Eighty percent of garbage found in the sea comes from cities and towns where irresponsible residents discard it in waterways that flow into the sea, the Thai-language daily Thai Rath reported yesterday (Dec 16, 2019).
The capital city of Bangkok has 948 canals, which flow into the Chao Phraya River before it reaches the sea.
According to statistics from the water drainage and environment offices, 387,261 tons of garbage were collected from the canals during 2015-2019.
Garbage found in the canals and drainage systems is mainly plastic bags, straws and cups.
According to Assistant Professor Pasinee Worachananan of Kasetsart University, discarded plastic materials adversely affect the food-chain of marine and fresh-water fish and other animals.