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Assessment of Plastic Waste Generation and Environmental Leakage in Hai An Ward, Nghi Son Town, Thanh Hoa Province
Summary
This study quantifies plastic waste generation rates and models the pathways through which plastic escapes into the environment, including waterways, soils, and the atmosphere. It identifies key leakage points in waste management systems and estimates the share of plastic that becomes environmental pollution. Findings highlight where infrastructure investment and policy intervention can most effectively reduce plastic leakage.
The study estimates plastic waste generation and leakage to the environment and the sea in Hai An ward, Thanh Hoa province. The study uses a material flow analysis model, field samplings (include plastic waste sorting and weighing), and secondary data collection and analysis. The plastic waste generated is estimated to be 77.01 ton/year, of which the plastic waste from domestic sources and other sources, including agriculture and aquaculture (fishing), are 71.17 ton/year and 5.84 ton/year, respectively. Research results show the composition of plastic waste from domestic sources is diverse, with bottles being the highest (28.4%), followed by plastic bags (23.1%). The findings of the study also indicate that the plastic waste leakage to the environment is 9.63 ton/year, of which 6.4 tons are from the uncollected plastic waste and 3.23 tons are the plastic waste lost during the collection, transportation, and treatment process. The research also estimates that the plastic waste leakage to the sea accounts for about 7.24 ton/year, plastic waste retained on land is about 2.16 ton/year, and the plastic waste openly burnt is 0.23 ton/year.