Research Projects
Why is Organic Matter Both Reactive and Persistent?
A central theme of our research is to understand why some organic matter is highly reactive with a residence time of minutes to hours and some organic matter persists for hundreds or thousands of years. Several research projects currently pursuing this overarching question across different pairs of ecosystems. Current Researchers: Mona Abbasi - PhD Student Marloes Groneveld - Research Engineer/Former PhD student Elizabeth Jacobsson - Research Engineer Sarah Shakil - Post-Doctoral Researcher |
MSc students and Post-doctoral researchers interested in developing a project focused on these topics, please contact me by email. ([email protected])
Organic Matter and Drinking Water
Current research involves collaborations with local drinking water utilities (Uppsala Vatten) to better understand how organic matter, nutrients and bacteria interact with each other through drinking water treatment steps, starting from raw water, through treatment steps, the distribution system and eventually to tap water. Recent and Former Projects: Mona Abbasi (PhD Student, 2020- ) Examining the treatability and reactivity of organic matter in Mälaren. Èlia Padrós Albiol (MSc Student, 2020) - What’s in Uppsala’s drinking water? An investigation of the interrelationships between organic matter, nutrients and bacteria from source to tap. |
Drivers and Effects of Modified Nutrient Stoichiometry from Source to Sea (DAEMONS)
Past research has focused on the use of macronutrient concentrations as indicators of aquatic ecosystem health. However, more recent findings have suggested that C:N:P stoichiometry may be a more accurate indicator. One hypothesis is that a safe zone of bioavailable C:N:P exists, within which biota can efficiently utilise available nutrients, and thus buffer downstream effects of elevated anthropogenic nutrient loadings. Wide-ranging environmental changes such as recovery from acidification, changing climate, and decreasing N deposition appear to be shifting aquatic ecosystems from N/P excess to C excess. This changing stoichiometry has the potential to alter light regimes and aquatic food webs, pose problems for potable water utilities, and trigger harmful cyanobacterial blooms. |
2019-2022 Swedish National Science Foundation. FORMAS; Call: Open Call ‘Drivers and Effects of Modified Nutrient Stoichiometry from Source to Sea’
PI: Chris Evans,
Co-PIs: Martyn Futter, Sofia Hjalmarsson, Sara Jutterström, Dolly Kothawala, Filip Moldan, Mike Peacock, Johanna Stadmark.
Project Website:
https://source-to-sea.weebly.com/
PI: Chris Evans,
Co-PIs: Martyn Futter, Sofia Hjalmarsson, Sara Jutterström, Dolly Kothawala, Filip Moldan, Mike Peacock, Johanna Stadmark.
Project Website:
https://source-to-sea.weebly.com/