Question

What is the difference between an emissions standard and an ambient standard?

Answer 1

Production's environmental impact leads government to intervene on the market. Emissions of pollution to the atmosphere, caused by development, are regulated by various regulations by the government. These regulations are of various types, such as legal and technological constraints, price rationing, emission charges etc.

With regard to economic performance, emission policies are superior to emissions policies for relatively non-toxic pollutants, whereas welfare of emissions standards dominates emission standards for sufficiently toxic pollutants. In the case of combined policies which jointly implement emission standards and environmental standards, in a unilateral policy, the optimal level of each standard relaxes relative to its counterpart, allowing for higher emission levels and higher environmental pollution concentrations.

Air quality standards may be based solely on scientific and technical data relating to public health and environmental effects, but other aspects such as cost-benefit or cost-effectiveness may also be taken into account in deriving those standards. In practice, there are generally several opportunities to address the economic aspects and other issues within a legal framework, Examples include technical feasibility, structural and socio-political measures. They can be taken into account during the standard setting procedure itself or when implementing appropriate pollution control steps.

The number of people exposed to concentrations of concern and the distribution of exposure among different population groups at present and at different emission concentrations at which standards may be set are important factors to be addressed in the creation of standards. The results of exposure modeling can be used at this stage as well as the data monitoring. Urspring of Background pollution including transportation of long-range pollution and its contribution to environmental levels should also be assessed.