The study, conducted by Pune-based Automotive Research Association of India (ARAI), also found that hydrocarbon emission reduced marginally, with a slight increase in nitrogen oxides.
The findings were presented by ARAI director Rashmi Urdhawareshe to Union minister for road transport and highways Nitin Gadkari on Day 2 of the Symposium of International Automotive Technology (SIAT) in Pune.
Urdhawareshe said the objective of the study was to evaluate emissions in real-world conditions as well as check the performance of the vehicles. The agency used 15% M-15 blend in vehicles and tested them for 3,000km. In autorickshaws, the performance was similar, except for a marginal reduction in nitrogen oxides.
Biofuels are being considered an alternative to reduce the country’s crude oil imports worth Rs7 lakh crore and also reduce pollution.
Gadkari said his ministry was committed to supporting ARAI in furthering the methanol blending programme. “The government aims to increase the blended fuel percentage to 20% by the year 2030,” he said. The government said that it plans to set up plants across the country to produce nearly five million tonnes of methanol in the next five years.
BS-VI, Ujjwala Yojana to keep PM 2.5 constant for 12 years
Another study, jointly done in the National Capital Region by ARAI and Delhi-based The Energy and Resources Institute (TERI), has revealed that the upcoming BS-VI emission norms and the government’s Ujjwala Yojana will keep PM 2.5 constant for the next 12-years. “Without these two initiatives, PM 2.5 would have worsened,” said Ajay Mathur, the director general of TERI.
Emission and receptor methods were used separately. The results were compared by the two agencies. It was found that the two methods produced nearly the same results and that vehicular pollution accounted for just 30% of the PM 2.5 emissions. Dust and biomass were the bigger culprits, found the study, titled ‘Source Apportionment of PM 2.5’.
The study and the methodology, Mathur said, were also peer reviewed.