I Basic approaches to environmental preservation 3.Contribution to environmental preservation through city gas supply City gas utilities play a crucial role as energy suppliers meeting a wide-ranging demand. The industry has a keen awareness of the need for efficient utilization of city gas energy and concern for the environment at both the manufacturing and supply stages. The industry is also further contributing to improvement of the environment through promotion of a conversion to natural gas as feedstock for manufacture of city gas. This conversion is also in agreement with the national energy policy.
Natural gas is a highly environment-friendly fuel.
It does not contain any sulfur oxides or nitrogen, and its combustion therefore results in no emission of SOx and only a low emission of NOx. It also produces no emission of soot and dust. And because natural gas is low in carbon, there is little emission of CO 2 as well. Its impact on the environment is therefore comparatively light.