Open Hydroponics: Risks and Opportunities 2008-02-01T05:08:19Z 2009-07-14T03:26:22Z Open Hydroponics: Risks and Opportunities Open Hydroponics Ecological Risk Assessment R Faggian, A Boland R Faggian, A Boland The purpose of this component of the research was to develop a method to identify likely ecological risks associated with Open Hydroponics (OH) in the Mallee region, using an ecological risk assessment approach. Ecological Risk Assessment (ERA) is the process of defining and assessing the risks to ecological resources of anthropogenic hazards and determining the acceptability of those risks. The hazard(s) can be any chemical, physical or biological entity that causes an adverse ecological response. In order to pose a risk, the hazard must 1) cause an adverse effect and 2) must be in association with the target end-point for long enough and at sufficient strength to elicit the effect. ER050978 ER050978