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Julián Alberto Gallego Urrea

Research assistant

Julián Alberto Gallego Urrea
Research assistant
julian.gallego@marine.gu.se
+46 31 786 9053
0766-229053

Room number: 3207
Postal Address: Box 460, 40530 Göteborg
Visiting Address: Carl Skottbergsgata 22 B , 41319 Göteborg


Department of Marine Sciences (More Information)
Box 461
405 30 Göteborg

Visiting Address: Carl Skottsbergs gata 22 B , 413 19 Göteborg

About Julián Alberto Gallego Urrea

Contact details

Department of marine sciences

Telephone: +46 (0)76 55 06 372
E-mail: julian.gallego@marine.gu.se
Address: Carl Skottsbergs gata 22B, SE-413 19 Gothenburg, Sweden

Research

 

My main research within marine sciences is in environmental aquatic chemistry with emphasis in chemical modelling.

Chemical speciation
The chemical speciation of trace metals in seawater is influenced by the presence of organic substances. Different types of exudates generated by organisms or derived from decomposition of organic matter, together with the organisms' biological interfaces (membranes) determines the bioavailability of metals to aquatic organisms. Variability in chemical speciation can thus have important ecological consequences.
In the project Ocean Certain, OC, funded by the European Union, mesocosm and laboratory experiments have been planned to generate data on the organic complexation of selected trace metals in seawater, and on the oxidation rate of Fe(II), under changing pH and temperatures. These results will be incorporated into our chemical speciation model that is being developed within the OC project.

Baltic Sea shipping
The main objective of the joint university project, SHIpH, is to evaluate present and potential future acidification of the Baltic Sea as a result of sulphur and nitrogen oxide (SOX and NOX) emissions from commercial shipping under different regulatory regimes. This is being assessed with help of a Baltic Sea biogeochemical model (Baltic-probe) in conjunction with other partners in the project.

Earlier research
The focus of my doctoral studies was in a novel field of study dealing with environmental risk assessment of manufactured nanoparticles, with emphasis on Environmental Chemistry and Ecotoxicology. My aim in this field was the investigation and analysis of ecotoxicity and behaviour of silver and titanium dioxide nanoparticles in natural aquatic environments. The research also included investigations of the fate and behaviour of manufactured nanomaterials on the environment, and collaborations on the development of analytical tools to analyze such manufactured nanoparticles at ambient ultra-low concentrations in the complex matrices of real aquatic environments.

 

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Latest publications

Influence of organic molecules on the aggregation of TiO2 nanoparticles in acidic conditions
Karin Danielsson, Julian A. Gallego-Urrea, Martin Hassellöv, Stefan Gustafsson, Caroline M. Jonsson
Journal of nanoparticle research, Journal article 2017
Journal article

Effects of silver nanoparticles to the freshwater snail Physa acuta: The role of test media and snails' life cycle stage
Sandra F. Gonçalves, Maria D. Pavlaki, Rafael Lopes, Julia Hammes, Julian A. Gallego-Urrea et al.
Environmental Toxicology and Chemistry, Journal article 2017
Journal article

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Showing 1 - 10 of 22

2017

Influence of organic molecules on the aggregation of TiO2 nanoparticles in acidic conditions
Karin Danielsson, Julian A. Gallego-Urrea, Martin Hassellöv, Stefan Gustafsson, Caroline M. Jonsson
Journal of nanoparticle research, Journal article 2017
Journal article

Effects of silver nanoparticles to the freshwater snail Physa acuta: The role of test media and snails' life cycle stage
Sandra F. Gonçalves, Maria D. Pavlaki, Rafael Lopes, Julia Hammes, Julian A. Gallego-Urrea et al.
Environmental Toxicology and Chemistry, Journal article 2017
Journal article

2016

2015

2014

Showing 1 - 10 of 22

Page Manager: Bo Johannesson|Last update: 7/1/2015
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