NA_AUT_MERCOS_FS_Mercury Observation on global scale (DTA.AD001.392)

Area tematica

Scienze del sistema Terra e tecnologie per l'ambiente

Area progettuale

Struttura responsabile del progetto di ricerca

Istituto sull'inquinamento atmosferico (IIA)

Responsabile di progetto

FRANCESCA SPROVIERI
Telefono: 0984493050
E-mail: f.sprovieri@iia.cnr.it

Abstract

During the past years a global observation system for mercury (Hg) (GMOS) was developed to support the goals of GEO/GEOSS and other international Programs and Minamata Convention (MCM). This effort was made more consistent with the GEO Flagship Global Observation System for Mercury (GOS4M). This project is aimed to: increase the availability and quality of data and information on Hg released to the global environment; harmonize metadata production, archiving and sharing data from the monitoring networks; and develop advanced services to support the implementation of MCM. In order to meet the requirements of the MCM implementation, traceable methods for oxidized Hg in air are also needed. One of the goal of this project is to develop traceable measurements, for the monitoring and control of Hg and its different species in the atmosphere to achieve improvements in the measurement comparability and uncertainty of Hg results. This will provide high quality data for the validation and application of regional and global scale atmospheric models, to give to governments, national and international organisations and stakeholders a firm basis for future policy development and implementation.

Obiettivi

The project's specific objectives are: 1. To develop, establish and implement a traceable methodology for the most important oxidised mercury (Hg) species. 2. To develop optimised sampling methods for gaseous Hg species using traceable reference standards for Hg; 3. To test and validate new and existing methods for Hg measurement under field conditions using the developed gas standards or generators; 4. to provide temporal and spatial distributions of Hg concentrations in ambient air and precipitation over land and over surface waters at different altitudes and latitudes around the world; 5. to establish a high-quality and consistent data base for atmospheric Hg on a global scale, following SOPs and strict QA/QC procedures. 6. To improve existing and newly developed sensor technologies for Hg monitoring within the global network (GOS4M) in core media in contaminated sites and in rural/background locations; 7. To test the operation of sensors in different geographical settings, to increase geographical coverage; 8. To develop SOPs and QA/QC for observations also for new sensor technologies, to enhance data comparability/reproducibility.

Data inizio attività

01/01/2021

Parole chiave

traceable Hg measurements, oxidised mercury, new sensor technologies

Ultimo aggiornamento: 07/06/2025