Impact of disposable mask microplastics pollution on the aquatic environment and microalgae growth.

The COVID-19 pandemic has mandated people to use medical masks to protect the public. However the improper management of disposable mask waste has led to the increase of marine pollution, in terms of water quality, and the decline in aquatic microorganisms. The aim of this research was to investigate the impact of disposable mask waste on fresh water and microalgae biomass quality.

Cigarette Display Regulation At Point Of Sales (POS) And Its Impact On Cigarette Sales.

This study aims to determine the impact of cigarette display settings on cigarette sales in the stores in Semarang City.

Methods: The research was conducted in August-October 2020 using a quasi-experimental study approach. It was conducted by setting the cigarette display in 3 methods where (1) the cigarette display was opened for 35 days in 5 stores, (2) the cigarettes display was covered with cloth for a pre and post-intervention period of 15 and 30 days, respectively, at five stores and (3) the cigarette display was hidden for a pre and post-intervention period of 15 and 30 days, respectively, at three stores.

The effect of salinity on the interaction between microplastic polyethylene terephthalate (PET) and microalgae Spirulina sp.

The increasing use of plastic over the last few decades has had an impact of plastic pollution in aquatic ecosystems. Plastic pollutions may be in the form of microplastics either from primary or secondary sources. These microplastics will indirectly affect human health through the food chain.

Interactions between polyethylene and polypropylene microplastics and sp. microalgae in aquatic systems.

This study aimed to evaluate the effect of microplastics on sp., the pigment phycocyanin in sp., and the effect of sp.

Interaction between Styrofoam and Microalgae in Brackish Water System.

Styrofoam is a thermoplastic with special characteristics; it is an efficient insulator, is extremely lightweight, absorbs trauma, is bacteria resistant, and is an ideal packaging material, compared to other thermoplastics. The aim of this study was to analyze the interaction between Styrofoam and . The study examined the growth of under Styrofoam stress, changes in Styrofoam functional groups, and their interactions.

Evaluation of polypropylene plastic degradation and microplastic identification in sediments at Tambak Lorok coastal area, Semarang, Indonesia.

This study aims to determine the degradation of plastic polypropylene (PP) and identify the presence of microplastic in sediments and seawater along the Tambak Lorok coastal area. The study was conducted by collecting samples from the sea surface area, at 50 cm and 170 cm depths, while seawater and sediments were collected from six stations. The results showed an early stage of degradation because of abiotic factors.