| dc.description.abstract | The continuous increase in plastic production has led to a rise in plastic waste in the environment. Approximately 79% of plastic pollution is found in landfills and dispersed in the environment, 12% is incinerated, and 9% is recycled. Plastic waste contributes to microplastic pollution. This study was conducted at the Terjun Landfill in Medan City. The objective of this research is to identify the presence of microplastics in PM10 ambient air at the Terjun Landfill. Additionally, it aims to determine the quantity, shape, color, polymer composition of the microplastics, and to analyze the relationship between their abundance and factors such as PM10 concentration, meteorological conditions, and the number of vehicles. The research began with a literature review, followed by the collection of secondary and primary data, including PM10 samples, meteorological conditions, and the number and types of vehicles. Air quality sampling was carried out using active sampling methods with HVAS equipment, and particulate concentrations were calculated using the gravimetric method according to SNI 19-7119.3-2017. Sample preparation was conducted before visual identification of microplastics. Data analysis was performed using descriptive statistical methods, specifically Pearson correlation. The study results showed that PM10 concentrations ranged from 382 to 489 μg/m³. The types of microplastics found included fragments, fibers, and films, originating from the fragmentation of waste at the Terjun Landfill. Fragment microplastics dominated, with 258 particles found at TS 3 and 258 particles at TS 4, and microplastic abundance ranged from 0.33 to 0.82 particles/m³. The variation in microplastic colors included yellow, black, blue, green, and red fragments; black, green, blue, red, and gray fibers; and white transparent films. The dominant polymers found were PET at TS 3 and PS at TS 4. Factors influencing the abundance of microplastics in ambient air were PM10 concentration, wind speed, and temperature" | en_US |
