From UPSC perspective, the following things are important :
Prelims level : BS norms
Mains level : Vehicular pollution and PM 2.5
The Ministry of Road Transport and Highways has issued a notification regarding the emission norms for L7 (Quadricycle) category for BS-VI.
Practice question for Mains:
Q. What are Bharat Stage Emission Standards (BSES)? Discuss how the early implementation of BS-VI norms will help curb vehicular pollution in India.
What is Quadricycle Vehicle verification?
- The quadricycle is a European Union vehicle category for four-wheeled microcars, which allows these vehicles to be designed to less stringent requirements when compared to regular cars.
- Quadricycles are defined by limitations in terms of weight, engine power and speed.
- There are two categories of quadricycles: light quadricycles (L6e) and heavy quadricycles (L7e)
What are the new notified norms?
- These norms are applicable from the date of notification.
- This notification completes the process of BS-VI for all L, M and N category vehicles in India.
- The emission norms are in line with EU with WMTC cycle.
- The procedure for testing is laid down in Automotive Industry Standard (AIS) 137-Part 9.
What is the WMTC cycle?
- The World Motorcycle Test Cycle (WMTC) is a system of driving cycles used to measure fuel consumption and emissions in motorcycles.
- The methods are stipulated as part of the Global Technical Regulation established under the UN World Forum for Harmonization of Vehicle Regulations, also known as WP.29.
Back2Basics: Bharat Stage Norms
|Standard||Reference||Date of Implementation|
|Bharat Stage II||Euro 2||1 April 2005|
|Bharat Stage III||Euro 3||1 April 2010|
|Bharat Stage IV||Euro 4||1 April 2017|
|Bharat Stage VI||Euro 6||April 2020 with a mandate (proposed)|
Minutes of BS-VI
- Carmakers would have to put three pieces of equipment — a DPF (diesel particulate filter), an SCR (selective catalytic reduction) system, and an LNT (Lean NOx trap) — to meet stringent BS-VI norms, all at the same time.
- This is vital to curb both PM (particulate matter) and NOx (nitrogen oxides) emissions as mandated under the BS-VI norms.
How is BS-VI Different from BS-IV?
- The major difference between the existing BS-IV and forthcoming BS-VI norms is the presence of sulphur in the fuel.
- While the BS-IV fuels contain 50 parts per million (ppm) sulphur, the BS-VI grade fuel only has 10 ppm sulphur content.
- Also, the harmful NOx (nitrogen oxides) from diesel cars can be brought down by nearly 70%.
- In the petrol cars, they can be reduced by 25%.
- However, when we talk about air pollution, particulate matter like PM 2.5 and PM 10 are the most harmful components and the BS-VI will bring the cancer-causing particulate matter in diesel cars by a phenomenal 80%.