Government has formally launched Bharat Stage-IV (BS-IV) grade transportation fuel across the country to keep carbon emission in check.
The launch came days after the Supreme Court banned sale and registration of BS-III vehicles from 1 April, 2017. It sets target of ushering in BS-VI fuel by April 2020 by skipping BS-V fuel.
All state-run oil marketing companies will provide BS-IV-compliant fuel at their 53,500 retail fuel stations across the country.
- BS-IV fuels contain far less sulphur than BS-III fuel. Sulphur in fuel makes it dirtier and lowers the efficiency of catalytic converters, which control emissions.
- The BS-IV complaint vehicles release less pollutants Carbon Mono-oxide (CO), Hydrocarbon (HC), Oxides of Nitrogen (NOx), Sulphur (SOx) and particulate matter (PM) compared to BS III complaint vehicles.
About Bharat stage emission standards
- BS emission standards are emission standards instituted by the Union Government to regulate output of air pollutants from internal combustion engines and spark ignition engines equipment, including motor vehicles.
- The standards and the timeline for implementation are set by the Central Pollution Control Board under the Union Ministry of Environment & Forests and climate change (MoEFCC).
- The standards, based on European regulations were first introduced in 2000. Since then, various stages Bharat Stage compatible fuel and ungraded and modified vehicles were introduced throughout the country.
- Each stage specifies a certain limit on the pollutants released, Higher the Bharat Stage goes lesser it emits pollutants. BS-I, BS-II and BS-III stages were launched in 2000, 2005 and 2010 respectively
- The harmful emissions that are identified for regulations in different Bharat Stages (BS) are carbon monoxide (CO), unburnt hydrocarbons (HC), Nitrogen Oxides (NOx) and Particulate matter (PM).