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this processes and activities that need to take place to
characterize and monitor the quality of the environment is
called environmental monitoring used for the preparation of
environmental impact assessments, as well as in many circumstances in which human activities carry a risk of harmful effects on the natural environment. All the factories, industries and organisations needs to follow the rules made by government for saving environment This process is known as the
environmental clearance, that is taken by companies from
government for running their factories, in other words,
government will allow a factory after a successful
environmental clearance, This clearance can be made by
third party organisations known as environmental
consultancy, which helps a company, factory or industry
for taking environmental clearance form government.

Source: wikipedia
Gaheli Center of Research and Development Pvt. Ltd.
an environmental consultant company

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