Dissolved gases are molecular species such as O₂, CO₂, N₂, CH₄, and noble gases that exist in aqueous or other liquid phases at concentrations governed primarily by gas–liquid equilibrium (e.g., Henry’s law), temperature, pressure, and salinity. They play critical roles in biogeochemical cycles, redox processes, and aquatic ecosystem metabolism, influencing parameters such as pH, alkalinity, and oxidation–reduction potential. In research, dissolved gases are quantified using techniques like membrane inlet mass spectrometry, gas chromatography, and optical sensors, and are essential tracers for processes including gas exchange, primary productivity, groundwater–surface water interactions, and anthropogenic impacts on aquatic environments.
Carbon dioxide (CO₂) connects us to the natural world: What we breathe out becomes fuel for forests. But inside our own bodies, CO₂ has a secret life. It sparks chemical reactions, shapes metabolism, and may even act as a ...
Cell & Microbiology
Feb 23, 2026
0
14
Earth's ocean absorbs carbon dioxide from the atmosphere, helping to temper the impact of climate change but increasing ocean acidity. However, calcium carbonate minerals found in the seabed act as a natural antacid: Higher ...
Earth Sciences
Feb 2, 2026
0
45
A team of scientists announced Tuesday they have developed new deep-sea landers specifically to test their contentious discovery that metallic rocks at the bottom of the ocean are producing "dark oxygen".
Earth Sciences
Jan 20, 2026
0
1287
Groundwater commonly contains methane, but the amount of this important greenhouse gas that can escape to surface waters or the atmosphere is highly uncertain. A team from the Max Planck Institute for Biogeochemistry and ...
Earth Sciences
Oct 14, 2025
0
85
It is becoming increasingly difficult to produce sufficient drinking water, and this process also releases large amounts of the harmful greenhouse gas methane. For his Ph.D. thesis, microbiologist Alje Boersma researched ...
Environment
Jun 5, 2025
0
21
Children are always asking "Why?" As they experience things for the first time, it's natural to want to find out more. But as children grow into adults, they often dismiss something new that challenges their experience and ...
Earth Sciences
Mar 23, 2025
0
252
Could lumpy metallic rocks in the deepest, darkest reaches of the ocean be making oxygen in the absence of sunlight?
Earth Sciences
Mar 17, 2025
3
1228
Gases are essential for many chemical reactions, and bubbles are one way for these gases to be held in solution. When compared to larger bubbles, nanobubbles have increased stability—meaning that they can remain in a solution ...
Nanophysics
Dec 16, 2024
0
72
Carbon dioxide from the atmosphere can dissolve in oceans, lakes and ponds, forming bicarbonate ions and other compounds that change water chemistry, with possible harmful effects on aquatic organisms. In addition, bicarbonate ...
Nanomaterials
Aug 25, 2021
0
177
