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4. Getting to Know your EIA Report

Virtual Tutorial

  1. Can you show me the approach in quantifying the noise impacts?
  2. How can I quantify the air quality impact using models?
  3. Are there different models for quantifying the water quality impacts?
  4. I want to know more about the approach and methodology for assessing the ecological impacts.
  5. I think the predictive techniques used in the EIA are too technical for me. Instead, I am interested to know more about the practical mitigation measures for various environmental impacts.

Previous

Annexes 8 and 16 of the EIAO-TM set down the important habitats, criteria for evaluating ecological impact and guidelines for the assessments.

There are also guidance notes issued by EPD (EIAO GN 6/2002 and GN 7/2002) about ecological assessment.

Types of Ecological Impacts

Impacts due to a project are generally include:

Direct Impacts

  • Habitat loss; and
  • Loss of individuals of species.

Indirect Impacts

  • Isolation and fragmentation;
  • Change of hydrology;
  • Disturbance (i.e. noise, human activity);
  • Impacts to water quality/discharge (SS, DO, nutrients); and
  • Temporary and Permanent Loss.

There are a number of factors influencing the frequency and efforts of the ecological surveys:

  • Size of the Study Area;
  • Nature of the project;
  • Structural complexity of the Study Area;
  • Availability of the ecological information within the Study Area;
  • Ecological sensitivity of the Study Area; and
  • Presence of important habitats or species, particularly those with distinct seasonal variation.

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Last Updated : 2004/03/01

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