New Coordinated Research Projects

New CRP “Multiple isotope fingerprints to identify sources and transport of agro-contaminants” (D1.50.18)

Project Officer: Adu-Gyamfi, J.

Agriculture is the main source of pollution in rivers and streams and this has a direct negative impact on human health. A major knowledge gap regarding pollution in agro-ecosystems is source identification and apportionment, which requires more data, research and integration of approaches. When pollutants from multiple sources to an agro-ecosystem occur, traditional techniques cannot help in evaluating the relative contribution of the different sources. This Coordinated Research Project (CRP) planned for the next 5 years (2018–2022) aims to (i) identify and apportion macronutrient and micro-contaminant inputs in agro-ecosystems using an integrated isotope approach (ii) develop, evaluate and standardize an integrative isotope approach for identifying and apportioning sources of contaminants in agro-ecosystems (iii) apply the combined approach to different agro-ecosystems to control contaminants (iv) provide guidelines and decision trees for adapting and applying the toolbox (v) support adaptive land and water management and conservation practices to reduce pollutants from agriculture into soil and water bodies. The nuclear techniques to be applied include (i) Compound-specific isotope analysis (CSIA) to determine the fate of micro-contaminants in soils and water (ii) Stable isotopes analyses of other solutes: δ15N-NO3, δ18O-NO3 δ15N-SO4, δ18O-SO4 and water δ2H-H2O, δ18O-H2O and (iii) the oxygen isotope ratio of dissolved inorganic phosphate (δ18Op). The first Research Coordination Meeting (RCM) of this CRP D.50.18 is planned for 7–11 May 2018 in Vienna, Austria.