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  2. Catalytic converter - Wikipedia

    en.wikipedia.org/wiki/Catalytic_converter

    Catalytic converter prototypes were first designed in France at the end of the 19th century, when only a few thousand "oil cars" were on the roads; these prototypes had inert clay-based materials coated with platinum, rhodium, and palladium and sealed into a double metallic cylinder. [6]

  3. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    The ECE 15/05 norms (also known as the Luxemburg accord, strict enough to essentially require catalytic converters) began taking effect gradually: the initial step applied to cars of over 2000 cc in two stages, in October 1988 and October 1989. [2]

  4. Vehicle emissions control - Wikipedia

    en.wikipedia.org/wiki/Vehicle_emissions_control

    All modern cars are now equipped with catalytic converters to further reduce vehicle emissions. Leading up to the 1981 model year in the United States, passenger vehicle manufactures were faced with the challenges in its history of meeting new emissions regulations, how to meet the much more restrictive requirements of the Clean Air Act (United ...

  5. Leaded gas tied to millions of excess cases of psychiatric ...

    www.aol.com/lead-gasoline-tied-over-150...

    Use of leaded gas increased after World War II until it proved damaging to catalytic converters, which became required in the 1970s. Some of lead’s hazards were known long before it was banned ...

  6. Carl D. Keith - Wikipedia

    en.wikipedia.org/wiki/Carl_D._Keith

    The initial catalytic converters were installed in cars in the 1975 model year. In 1976, the three-way catalyst was introduced, which, after updates, has been able to eliminate 97% of tailpipe hydrocarbon emissions, 96% of carbon monoxide and 90% of nitrogen oxides produced in automobile engines and those used in light trucks and sport utility ...

  7. Leaded gas created a mental health crisis for this generation

    www.aol.com/news/leaded-gas-created-mental...

    Use of leaded gas tapered in the mid-1970s because the fuel damaged catalytic converters that became more common to meet stricter emission standards required by ... folks were walking around with ...

  8. United States vehicle emission standards - Wikipedia

    en.wikipedia.org/wiki/United_States_vehicle...

    OBDII + catalytic converter tamper check + fuel cap leak test for 1996 or later vehicles. Tailpipe/tampering testing for 1995 and older vehicles. Any diesel vehicle with a model year of 1975 and newer and a GVWR of 10,500 lbs or less. Annual testing. OBDII + catalytic converter tamper check + fuel cap leak test for 2002 or later vehicles.

  9. Manufacturing Declines on a Gloomy Fed Survey - AOL

    www.aol.com/news/2012-09-17-manufacturing...

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