This work presents a bibliometric study of the literature on the use of caucho in the construction to promote the interest of using rubber as a prime material to reduce pollution at a global level. Published papers in the period 1999-2020 in both databases, Scopus and Web of Science (WoS), are taken into account using the Methodi Ordinatio and the VOSviewer software. A total of 967 documents on the use of rubber in structural and non-structural concrete have been published in this period and 1182 authors have contributed on the subject. Since 2010, the interest of researchers in introducing rubber in construction has increased. China, USA and Australia are the countries with the greatest interest in investigating about rubber-concrete.

Microplastic pollution is a major environmental concern due to its persistence, global distribution, and potential impacts on ecosystems and human health. This systematic review, conducted according to PRISMA 2020 guidelines, analyzes research trends in microplastics with a focus on physicochemical characterization and removal technologies. A literature search was performed in Scopus and Web of Science (1972–2025) using predefined inclusion and exclusion criteria. After screening and duplicate removal, 89 studies were included in the final analysis. It is considered that with this dataset, it is possible to capture the main analytical and technological developments in the field. As a bibliometric-oriented study, no formal risk-of-bias assessment was conducted. However, a qualitative consideration of potential biases was undertaken, particularly regarding publication bias, database coverage limitations, and the predominance of English-language peer-reviewed studies. These aspects were considered when interpreting the results. The Methodi Ordinatio approach was then used to rank publications based on scientific relevance and citation impact. Results show the predominance of FTIR and Raman spectroscopy for microplastic characterization, while removal technologies remain heterogeneous and less standardized, with most approaches still at laboratory scale. Key gaps include the lack of standardized analytical protocols and limited integration between detection and remediation strategies. Overall, this review highlights critical research trends and supports the development of scalable solutions for microplastic pollution.