Origin | Direct or indirect. |
Effect | Positive or negative: A negative effect includes as “that as produces a loss in natural, cultural landscape…or the character and personality of a determined locality”. |
Evolution | Simple: Only appears over one environmental indicator. Cumulative: Prolonged, with a progressive increase in its level. Synergic: Increased by the accumulation of different factors. |
Duration | Temporary or permanent. Short, medium or long term: The impact could be measured, respectively, within a time period of one year, five years or greater permanent or temporary impact. |
Persistence | Continuous or discontinuous. |
Reversibility | Reversible or irreversible: The impact Could be assimilated or reversed, or not, as the case may be, by the natural capacity of the environment to recover. |
Recoverability | Recoverable or unrecoverable: The environment can, or cannot, be recovered by natural or human action. |
Impact | Compatible: The effect on the environment will last only as long as the project and will cease upon termination. Moderate: Recovery of the environment does not require mitigation measures. Severe: Recovery of the environment requires mitigation and protective measures. Critical: Above than an acceptable level. A permanent loss of environmental quality will be produced even after mitigating measures. |