01-06-2012, 10:19 AM
Environmental Impact Assessment
Environmental Impact Assessment.ppt (Size: 9.75 MB / Downloads: 1,862)
INTRODUCTION
ENVIRONMENT- surroundings
IMPACT – change in environment with or without human activity.
ASSESSMENT
What is EIA?
Environmental attributes
Variables that represent characteristics of the environment – attributes.
Air
Water
Sound
Land
Ecology
Human Aspects
Economics
Resources
Change in attribute-change in environment.
Types of EIA
Site selection EIA.
Comprehensive EIA (CEIA).
Rapid EIA (REIA).
Regional EIA.
Site selection EIA
Evaluation of alternative sites.
Environmental attributes.
Project attributes – raw materials, infrastructural facilities, markets, etc.
Ranking of alternative sites.
Comprehensive EIA (CEIA)
Most commonly used – infrastructural projects
Assessment based on 3 seasons.
Detailed list of parameters.
Full range of impacts – economic, socio-cultural,
aesthetics, land use patterns, etc.
Rapid EIA (REIA)
Identical to CEIA
Assessment based on one season.
Limited parameters.
Regional EIA
Assessment – 3 seasons over a region
Long term impact on main attributes.
EIA - PARAMETERS
For the purpose of assessment, environmental
Parameters considered were:
Noise (aircraft noise)
Air quality
Water quality
Flora & Fauna
Other parameters – meteorology, land use,
social, economic, land transport, heritage,etc.
AIRCRAFT NOISE
Effects
Permanent or temporary hearing loss.
Sleep interference.
Increased human annoyance.
Communication interference.
Structural impairment.
Property devaluation