Bharat Stage VI fuel arrives in Delhi
What is the issue ?
- Delhi will get the first taste of BS VI fuel in India, which is expected to bring down vehicular pollution in the city infamous for its air quality levels.
How is Bharat Stage VI fuel better than BS IV ? :
- The main difference between BS-IV and BS-VI (which is comparable to Euro 6) is in the amount of sulphur in the fuel.
- BS-VI fuel is estimated to bring around an 80% reduction in sulphur content — from 50 parts per million (ppm) to 10 ppm.
- According to analysts, NOx emissions from diesel cars are expected to come down by nearly 70% and, from cars with petrol engines, by 25%.
About Bharat Stage norms :
- The ‘BS’ stands for ‘Bharat Stage’ which signifies the emission regulation standards set by Indian regulatory bodies (central government) to keep a check on the pollutant levels emitted by vehicles that use combustion engines.
To bring them into force, the Central Pollution Control Board sets timelines and standards which must be followed by automakers.
The BS norms are based on European emission norms as ‘EU’
The emissions and how they are harmful ?
CO emissions are Carbon Monoxide emissions are are more evident in Petrol engines. Long Term exposure can prevent oxygen transfer and increase headaches/nausea.
HC emissions are Hydrocarbons which are again more prevalent in Petrol engines. Short term exposure can cause headaches, vomiting and disorientation.
NOx emissions are Nitrogen Oxide emissions which are more prevalent in Diesel engines. Long Term exposure can cause Nose and eye irritation and damage lung tissue.
PM is Particulate matter, again more prevalent in a Diesel engine. Long Term exposure can harm the respiratory tract and reduce lung function.
What lies ahead for India's automobiles ?
The changes in the automobiles under the wake of BS VI norms will be,
- Diesel Particulate Filter (DPF): It is mandatory that vehicles must be fitted with DPF for Particulate Matter (PM) reduction.
- Selective Catalytic Reduction (SCR): Vehicles should be equipped with an SCR module to reduce oxides of nitrogen.
- Gasoline Direct Injection Engines: Manufacturers will also need to make petrol engines more fuel-efficient as CO emission levels will also need to be controlled.
- Engine downsizing: Smaller engines means lower fuel consumption, especially at lower speeds where most cars spend most of their times.
- Hybrid vehicles: These will get more popular, as this is a good way to eradicate emissions and maintain performance levels and boost fuel economy.
- Alternate fuels: Referring to electric cars, CNG, ethanol blends, LPG and petrol-electric and diesel-electric hybrids etc.