2.1 Identification of Relevant Sources
A first step in the development of the nickel emission inventory report is the identification of the sources of nickel that could result in releases to the environment. A long-list of potential emission sources is developed, based on an overview of the mass-flow of nickel.
The next step is the identification of the uses in which nickel could be released in the environment (air, surface water, soil). This evaluation is based the components listed below.
- Assessment of existing emission databases (national and international):
- Pollutant Release and Transfer Registers from different countries
- International organizations developing and publishing emission inventories [e.g., EPER (European Pollutant Emission Register), E-PRTR (The European Pollutant Re-lease and Transfer Register), HELCOM (the Helsinki Commission), OSPAR (the Oslo and Paris Convention), International Conference for the Protection of the Rhine, etc.]
- Inventory reports from other institutions/organizations
- Experts from relevant stakeholder organizations
- Assessment of available emission inventory guidelines:
- Open literature
The outcome of this step is the identification of a list of emission sources, which are categorized in different groups (Table 1).
Table 1: Nickel emission sources reported in the nickel EU RA