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Photochemistry at the Ocean's Surface: Effects and Interactions of Dissolved Organic Matter with Microplastics

Total Cost €


EC-Contrib. €






Project "POSEIDOMM" data sheet

The following table provides information about the project.


Organization address
city: SIENA
postcode: 53100

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Italy [IT]
 Project website
 Total cost 180˙277 €
 EC max contribution 180˙277 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2015
 Funding Scheme MSCA-IF-EF-RI
 Starting year 2016
 Duration (year-month-day) from 2016-05-01   to  2018-04-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITA DEGLI STUDI DI SIENA IT (SIENA) coordinator 180˙277.00


 Project objective

Microplastics represent an increasing threat to aquatic ecosystems, with potential impacts on the cycling of fundamental elements and ecological consequences at all trophic levels. Low-density polyolefins, like polyethylene and polypropylene, are the most common plastics produced and are ubiquitous in marine environments. Floating on the sea-surface, they can have direct and indirect impacts on the sea-surface microlayer (SML), a key interface for biochemical and photochemical processes controlling gas exchange between the ocean and the atmosphere. The SML is an enriched biofilm of organic biological material aggregating and favouring high microbial activity. The effects of an increasing presence of microplastics on the cycling of organic matter in the surface ocean are not well understood, and yet they may have a major impact on this key interface. POSEIDOMM will investigate the influence of microplastics on the photochemical and biological processes in the SML. We will verify the effect of microplastic pollutants on the formation of a surface-active biofilm, the implications for microbial cycles and for the photochemical generation of reactive chemical species and labile organic compounds. The goals of POSEIDOMM are to provide a chemical and biological characterization of the microplastic-biofilm aggregates in the SML, to quantify the photochemical cycling of such aggregates and to identify the implications of this cycling on gas exchange and on the microbial carbon cycle. This will be achieved through a trans-disciplinary approach combining innovative spectroscopic and biological analyses to study the SML in controlled microcosms and in-situ mesocosm studies. Through a close cooperation with leading European partners, POSEIDOMM will close major gaps in our understanding of the interaction of micropollutants with marine biological processes and atmospheric gas exchange.


year authors and title journal last update
List of publications.
2019 Luisa Galgani, Manolis Tsapakis, Paraskevi Pitta, Anastasia Tsiola, Eleni Tzempelikou, Ioanna Kalantzi, Chiara Esposito, Arturo Loiselle, Anastasia Tsotskou, Snezana Zivanovic, Eleni Dafnomili, Santi Diliberto, Kyriaki Mylona, Iordanis Magiopoulos, Christina Zeri, Elli Pitta and Steven Loiselle
Microplastics increase the marine production of particulate forms of organic matter
published pages: , ISSN: 1748-9326, DOI: 10.1088/1748-9326/ab59ca
Environmental Research Letters 2019-11-26
2019 Luisa Galgani Ricardo Beiras François Galgani Cristina Panti Angel Borja
Editorial: “Impacts of marine litter”
published pages: , ISSN: 2296-7745, DOI: 10.3389/fmars.2019.00208
Frontiers in Marine Science \"Research Topic \"\"Impacts of 2019-06-11
2018 Luisa Galgani, Anja Engel, Claudio Rossi, Alessandro Donati, Steven A. Loiselle
Polystyrene microplastics increase microbial release of marine Chromophoric Dissolved Organic Matter in microcosm experiments
published pages: , ISSN: 2045-2322, DOI: 10.1038/s41598-018-32805-4
Scientific Reports 8/1 2019-04-09
2019 Luisa Galgani and Steven A. Loiselle
Plastic Accumulation in the Sea Surface Microlayer: An Experiment-Based Perspective for Future Studies
published pages: , ISSN: 2076-3263, DOI: 10.3390/geosciences9020066
Geosciences Special Issue Ocean-Atmosphere 2019-02-26

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The information about "POSEIDOMM" are provided by the European Opendata Portal: CORDIS opendata.

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