Volatile Organic Compounds (VOCs) in the marine environment

ISBN-13: 9783639128017 / Angielski / Miękka / 2009 / 264 str.

Bravo-Linares Claudio

Opis

The atmosphere contains VOCs which are produced byman-made and biological sources. This production,especially in the marine environment, constitutes animportant source of gases into the atmosphere. Thisresearch focuses on how external factors such asmeteorology, physico-chemistry and biology drive theproduction and release of VOCs in the marineenvironment, and how individual sources contribute tothe total amount of VOCs measured. Multivariateanalysis demonstrated that physico-chemical andmeteorological factors such as wind speed, watertemperature can influence the detection of VOCs insurface waters as well their productions duringseasons. While statitistical analysis with signaturesfrom the three potential sources highlighted theimportance of the microalgae signature in springwhile macroalgae and sediments dominated at othertimes. Short term variability in concentrations andfluxes was due to such factors such as tidal state,wind speed and seawater temperature.Concentrations ofVOCs are governed by external factors effecting longtime scale and factors having an effect on a daily base.