Table A4.2 (continued) Hazard Maximum risk no Critical Preventive Residual risk with — — preventive measure control measures preventive measures (ie uncontrolled) point or control Use or Receiving Environ Effect Impact Impact Level Like- Level of Like- point in expos- environ- -mental lihood riska lihood of environ- ure ment or end risk mental point entry receptor pathway Zinc Plants Plants Toxicity Minor Moderate Unlikely Minor Low Irrigat- Almost Source Roof condition ion certain water management Minor Moderate Irrigation Irrigation tools Unlikely Minor Low Almost certain Minor Moderate Irrigation Monitoring Unlikely Minor Low Almost certain Soils Plants Toxicity Almost Minor Moderate Source Roof condition Unlikely Minor Low certain water management Minor Moderate Irrigation Irrigation tools Unlikely Minor Low Almost certain Almost Minor Moderate Irrigation Monitoring Unlikely Minor Low certain
Table A4.2 (continued) Hazard Maximum risk — no preventive measure (ie uncontrolled) Critical control point or control point in environ- mental pathway Preventive measures Residual risk — with preventive measures Use or expos- ure entry Receiving environ- ment or receptor Environ -mental end point Effect Like- lihood Impact Level of riska Like- lihood Impact Level of risk Zinc Irrigat- ion Plants Plants Toxicity Almost certain Minor Moderate Source water Roof condition management Unlikely Minor Low Almost certain Minor Moderate Irrigation Irrigation tools Unlikely Minor Low Almost certain Minor Moderate Irrigation Monitoring Unlikely Minor Low Soils Plants Toxicity Almost certain Minor Moderate Source water Roof condition management Unlikely Minor Low Almost certain Minor Moderate Irrigation Irrigation tools Unlikely Minor Low Almost certain Minor Moderate Irrigation Monitoring Unlikely Minor Low