570 000 ecotox tests, REACH data boost the AiiDA database!
570 000 aquatic ecotox tests results, 22 000 covered substances, 16 000 experimental PNEC, 14 000 PNEC statistics (HC5) and SSD (HC50), the regulation on the Registration, Evaluation and Authorisation of CHemicals (REACH) has made public hundreds of thousands ecotox tests results in December 2013. The AiiDA database (Aquatic Impact Indicator DAtabase) now takes into account this new data and exponentially increases its chemical substances coverage.
Getting ecotoxicity data is a struggle
Despite efforts done since 30 years to run ecotoxicity tests for thousands of substances, it is still difficult to get a clear perception of the potential risk or impact of a chemical substance. The lack and the difficulty of access to ecotoxicologic data, as well as the complexity of the implementation of calculation and methods, make the use of the representativity of aquatic ecotoxicity indicators difficult.
AiiDA has a solution
To overcome this issue, AiiDA provides more than 570 000 unique and referenced ecotoxicological tests on more than 3 600 species and 30 phyla. This global database is used to automatically calculate the different ecotoxicological indicators as well as their uncertainties according to the official Technical Guidance Document (TGD).
A large data panel
AiiDA covers 22 000 molecules, including 14 000 with an ecological representativity of 3 phyla or more. The tested species are directly linked to the ITIS database (Integrated Taxonomic Information System) and can be classified according to their geographical origin.
The ecotoxicological indicators gathered in AiiDA are:
- HC50 (Hazardous Concentration 50%) calculated with the AMI (Assessment of Mean Impact) method for more than 10 000 HC50 Acute and Chronic.
- HC5 and its confidence interval (Hazardous Concentration 5%) calculated with the Aldenberg method (2000) or the SSD (Species Sensitivity Distribution) extrapolation method of US-EPA (2005).
- PNEC (Predicted no-effect Concentration), calculated with the recommendations of the Technical Guidance Document on Risk Assessment (EU, 2003).
Easy to consult data
The calculated values are available on an Internet interactive platform, allowing to maintain the traceability of the calculations and to go back to all the used tests sources. This traceability, which did not exist before, is a great value for eco-conception and gives a true coherence of the indicators.
The experimental data given by AiiDA, allow to search data for risk assessment as well as to produce indicators for the USEtox impacts evaluation model or for the calculation of risk indicators (PNEC, HC5) with a corresponding uncertainty.
The AiiDA platform can also produce SSD and PSD curves (Species and Phyla Sensitivity Distribution) of the different molecules and compare their ecotoxicity.
You can register to the presentation and the first training of AiiDA 3.0 planned as a free webinar on Tuesday 17th of June 2014 at 2 pm. To register, please send an e-mail to odilon.hugonnot(at)tools4env.com.
AiiDA is a project supported by the Rhône-Alpes region.