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Environmental Impact Assessment (EIA) studies

An Environmental Impact Assessment (EIA) is an assessment of the possible positive and negative impact that a proposed project may have on environmental, social and economic aspects. EIA is the process of identifying, predicting, evaluating and navigating the biophysical, social and other relevant effects of development proposals prior to major decisions being taken and commitments made.

Environ, in association with competent organizations has carried out such studies in the field of ports/harbors, thermal power plants etc.

  • Hydrodynamics studies
  • Sediment transport studies
  • Wave transformation studies
  • Wave disturbance studies
  • Dredging and dispersion studies
  • Oil spill studies

Hydrodynamics studies

These studies are used to estimate currents, surface elevations due to tides, river flows and storm surges. This information is used as one of the inputs in the design of port structures. The currents and surface elevations obtained from these studies are essential inputs for assessment of sedimentation, dispersion during dredging & dumping.

Sedimentation transport

This is useful to estimate the backfilling of dredged channels, morphological changes in sea, river & estuarinee environments.

Wave transformation

This involves the transformation of waves from offshore to the near-shore areas. This near shore wave data is a necessary input for design of coastal structures and estimation of downtime for transhipment operations.

Wave disturbance studies

This is useful in estimating the disturbance due to short waves in the port basin. It helps in understanding the total operational days of the port.

Dredging and disposal studies

Dredging studies are used to estimate the extent of spreading of the bed material which is brought into suspension during dredging operations.
Dredged material disposal studies are used to estimate the changes in seabed level and ambient sediment concentrations during dumping operations.

Oil spill studies

These studies are carried out to simulate the oil slick mobility, amount of oil left on the water surface, evaporation and evolution of the oil properties in ambient environmental conditions. Mitigation measures and response in an emergency can be planned.

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