Tag Archives: nox

European Court Annuls Real Driving Emissions Limits. Cleaner Diesel Deception Threatened. They Can Be Banned from Cities

Their argument is provocative: “While the European Commission did not seek to increase the headline 80 mg/km emissions limit for diesel vehicles, which must still be adhered to in the laboratory test, they granted “Conformity Factors” that in effect did increase the limits for the harder, on-road part of the test. As a result, all diesel vehicles only had to meet 168 mg/km by September 2019, falling to 114 mg/km by January 2021. This was in practice a large increase in the permissible emissions limit.” Continue reading

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Hybrid Vehicles Overtaking Diesels on Fuel Economy

However, the downturn in diesel mpg may be due to a change in manufacturers’ focus from fuel economy to NOx emissions after the Volkswagen Dieselgate fraud. Nonetheless, there clearly is an improvement in gasoline hybrid performance because of technologyl advances. Continue reading

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Refinery to Pay $5.3 Million Penalty for Clean Air Act Violations

The U.S. Environmental Protection Agency (EPA) and the U.S. Department of Justice announced today that Hovensa LLC, owner of the second largest petroleum refinery in the United States, will pay a civil penalty of more than $5.3 million and spend more than $700 million in new pollution controls to resolve Clean Air Act violations at its St. Croix, U.S. Virgin Islands refinery. Continue reading

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