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9 cze 2020 · Abstract. Alkalinity, the excess of proton acceptors over donors, plays a major role in ocean chemistry, in buffering and in calcium carbonate precipitation and dissolution. Understanding alkalinity dynamics is pivotal to quantify ocean carbon dioxide uptake during times of global change.
1 lut 2022 · Carbon dioxide nanobubbles can increase effective gas-transfer to solution and enhance buffering capacity given the stable suspension in water of CO 2 gas within nanobubbles and the existence of larger gas/water interface.
Carbon dioxide, which is naturally in the atmosphere, dissolves into seawater. Water and carbon dioxide combine to form carbonic acid (H 2 CO 3 ), a weak acid that breaks (or “dissociates”) into hydrogen ions (H + ) and bicarbonate ions (HCO 3 - ).
22 mar 2024 · The contribution of biological carbon fixation increases as the seawater capacity to hold CO 2 decreases under continuous climate change and ocean acidification. Our seamless coastal ocean...
1 maj 2023 · The results indicated that increasing pressure increases the solubility of CO 2 in aqueous solutions, resulting in lower pH values. In contrast, increasing salinity and temperature lowers the solubility and, as a result, increases the system's pH.
On the basis of laboratory experiments and field studies of naturally elevated CO2 marine environments, widespread biological impacts of human-driven ocean acidification have been posited, ranging from changes in organism physiology and population dynamics to altered communities and ecosystems.
3 sty 2023 · Ocean water acts as a sink for CO 2 due to its carbonate buffer system which is the result of the reaction of water with CO 2 forming carbonic acid, bicarbonate, and carbonate ions (Boudreau et al. 2018).
