Cheng Chang
Doctoral studentI am working in the environmental science research field, and I am particularly interested in microplastic contamination and methane cycling in the marine environment.
Research
At Linnaeus University, I will shortly receive my master's degree in Environmental Science and Sustainability. I graduated with a BSc in Biological Science from Qufu Normal University in China and an MSc in Ecology from South China Normal University. I previously spent 3.5 years as a project manager at IVL Swedish Environmental Research Institute (Beijing).
Microplastic contamination is the subject of my current research, which stems from my master at LNU. My previous master thesis focused on the physiological changes that occur in plants under various stress. That included acid rain, intense and low light, and low temperature. My undergraduate thesis examined the impact of several herbs on memory function of mice. Following my master graduation, I began working on a number of initiatives in the environmental and ecological sectors, such as water treatment, water management, food waste, biodiversity and the transfer of green technologies, etc.
Due to the benefit of being near the Baltic Sea, our study focuses on comprehending the level of microplastic contamination in the Baltic Sea and coming up with solutions to improve the marine environment in the Baltic Sea region. This experience has led me to believe that studying microplastics is critical to understanding and addressing their impact on marine ecosystems. The alarming prevalence of microplastics in our oceans underlines the importance of research in this area, which can inform policy decisions and support efforts to reduce plastic waste.
Furthermore, I am particularly interested in the study of methane cycling in marine sediments, an area with great potential to advance our understanding of carbon cycling and the role of marine ecosystems in the global carbon cycle. By studying these topics, I hope to contribute to the broader effort to protect and preserve our planet's natural resources.
My ongoing research projects
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Project: Methane in Baltic Sea sediments – a silent threat! Large quantities of methane are produced at the bottom of the Baltic Sea and may escape to bottom waters if not consumed by microbes in the…
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Project: Will the microbial filter prevent methane emissions from Baltic Sea coasts in a warmer future? In a warmer future, there will be more methane production in sediments in coastal areas.…
Publications
Article in journal (Refereed)
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Chang, C., Augustsson, A., Yu, C., Mugwira, R., Carlon, S., et al. (2025). Baseline assessment of metal and microplastic pollution in sediments of a small‑sized harbor in western Baltic Sea (Kalmar, Sweden). Environmental Science and Pollution Research.
Status: Epub ahead of print -
Chang, C., Augustsson, A., Shahabi-Ghahfarokhi, S., Rahmati-Abkenar, M., Josefsson, S., et al. (2025). Chronological evidence of microplastic accumulation and contamination onset in Central Baltic Sea sediments. Frontiers in Marine Science. 12.
Status: Published -
Li, S., Ketzer, J.M., Chang, C., Rula, I., Seidel, L., et al. (2025). Long-term warming raises risks of seasonal seafloor methane release in the coastal Baltic Sea. Frontiers in Microbiology. 16.
Status: Published
Conference paper (Refereed)
- Ketzer, J.M., Stranne, C., Chang, C., Owari, S., Yu, C., et al. (2024). Discovery of a major seafloor methane release site in Europe : The Landsort deep, Baltic Sea.. EGU General Assembly 2024.
- Chang, C., Hogland, W. (2022). Phytoremediation development in Sweden. IOP Conference Series: Earth and Environmental Science, Volume 1096.