Questão 9

(UNICAMP - 2021 - 2ª FASE)

Texto A. Microplastics are tiny particles composed of plastic that have been becoming a worrisome problem in the oceans. Besides a direct contribution to pollution, microplastics can also release chemicals such as plasticizers and flame retardants into the water they are in. An investigation carried out by the Virginia Institute of Marine Science found that water temperature and salinity can have an effect on how much of these chemicals are released from microplastics, reinforcing the need to keep these materials out of the environment

(Adaptado de https://marinedebris.noaa.gov/research/influence-environmental-conditions-contaminants-leaching-and-sorbing-marine-microplastic. Acessado em 30/09/2020.)

Texto B. The Guppyfriend Washing Bag is the most effective hands-on solution against microplastic pollution from washing. It reduces fiber shedding and protects your clothes. It filters the few fibers that do break and it’s a reminder to change our washing rituals.

(https://us.guppyfriend.com. Acessado em 30/09/2020.)

(Na parte inferior da imagem, lê-se: “STOP Microwaste for a plastic free nature – Microfiber Filter Solution”)

a) A partir da leitura do texto A, aponte uma consequência indireta dos microplásticos para a poluição. Justifique quimicamente por que essa consequência é afetada pela temperatura da água.

b) “O produto apresentado no texto B é uma medida efetiva para os problemas apontados no texto A”. Você concorda com essa afirmação, concorda parcialmente com ela ou discorda dela? Justifique de acordo com os textos e seus conhecimentos de química.