Seasonal heterogeneity and a link to precipitation in the release of microplastic during COVID-19 outbreak from the Greater Jakarta area to Jakarta Bay, Indonesia

Cordova, Muhammad Reza; Ulumuddin, Yaya Ihya; Purbonegoro, Triyoni; Puspitasari, Rachma; Afianti, Nur Fitriah; Rositasari, Ricky; Yogaswara, Deny; Hafizt, Muhammad; Iswari, Marindah Yulia; Fitriya, Nurul; Widyastuti, Ernawati; Harmesa,; Lestari,; Kampono, Irfan; Kaisupy, Muhammad Taufik; Wibowo, Singgih Prasetyo Adi; Subandi, Riyana; Sani, Sofia Yuniar; Sulistyowati, Lilik; Nurhasanah,; Muhtadi, Ahmad; Riani, Etty; Cragg, Simon M.

Seasonal heterogeneity and a link to precipitation in the release of microplastic during COVID-19 outbreak from the Greater Jakarta area to Jakarta Bay, Indonesia

2022

To reduce microplastic contamination in the environment, we need to better understand its sources and transit, especially from land to sea. This study examines microplastic contamination in Jakarta's nine river outlets. Microplastics were found in all sampling intervals and areas, ranging from 4.29 to 23.49 particles m⁻³. The trend of microplastic contamination tends to increase as the anthropogenic activity towards Jakarta Bay from the eastern side of the bay. Our study found a link between rainfall and the abundance of microplastic particles in all river outlets studied. This investigation found polyethylene, polystyrene, and polypropylene in large proportion due to their widespread use in normal daily life and industrial applications. Our research observed an increase in microplastic fibers made of polypropylene over time. We suspect a relationship between COVID-19 PPE waste and microplastic shift in our study area. More research is needed to establish how and where microplastics enter rivers.

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