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  2. Carbon dioxide sensor - Wikipedia

    en.wikipedia.org/wiki/Carbon_dioxide_sensor

    A carbon dioxide sensor or CO 2 sensor is an instrument for the measurement of carbon dioxide gas. The most common principles for CO 2 sensors are infrared gas ...

  3. Continuous emissions monitoring system - Wikipedia

    en.wikipedia.org/wiki/Continuous_emissions...

    2 emissions are measured in pounds per hour using both an SO 2 pollutant concentration monitor and a volumetric flow monitor. For NO x, both a NO x pollutant concentration monitor and a diluent gas monitor are used to determine the emissions rate in weight per volume or weight per heat value (for example lbs/million Btu, lbs/ft 3, kg/kWh or kg ...

  4. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    EU Regulation No 443/2009 set an average CO 2 emissions target for new passenger cars of 130 grams per kilometre. The target was gradually phased in between 2012 and 2015. A target of 95 grams per kilometre applies from 2021. For light commercial vehicle, an emissions target of 175 g/km applies from 2017, and 147 g/km from 2020, [67] a ...

  5. Greenhouse gas monitoring - Wikipedia

    en.wikipedia.org/wiki/Greenhouse_gas_monitoring

    Concentrations in ppm of the major greenhouse gases between 1978 and 2010. Greenhouse gas monitoring is the direct measurement of greenhouse gas emissions and levels. There are several different methods of measuring carbon dioxide concentrations in the atmosphere, including infrared analyzing and manometry.

  6. Space-based measurements of carbon dioxide - Wikipedia

    en.wikipedia.org/wiki/Space-based_measurements...

    OCO-2 observations were used to estimate CO 2 emissions from wildfires in Indonesia in 2015. [13] OCO-2 observations were also used to estimate the excess land-ocean flux due to the 2014–16 El Niño event. [14] [15] GOSAT observations were used to attribute 2010-2011 El Niño Modoki on the Brazilian carbon balance. [16]

  7. Carbon monitoring - Wikipedia

    en.wikipedia.org/wiki/Carbon_monitoring

    Carbon monitoring as part of greenhouse gas monitoring refers to tracking how much carbon dioxide or methane is produced by a particular activity at a particular time. For example, it may refer to tracking methane emissions from agriculture, or carbon dioxide emissions from land use changes, such as deforestation, or from burning fossil fuels, whether in a power plant, automobile, or other device.

  8. European emission standards - Wikipedia

    en.wikipedia.org/wiki/European_emission_standards

    A second set of regulations, passed in 2014, set a 2021 target of average CO 2 emissions of new cars to fall to 95 g/km by 2021, and for light-commercial vehicles to 147 g/km by 2020. [ 66 ] [ 67 ] In April 2019, Regulation (EU) 2019/631 was adopted, which introduced CO 2 emission performance standards for new passenger cars and new light ...

  9. Useful conversions and formulas for air dispersion modeling

    en.wikipedia.org/wiki/Useful_conversions_and...

    1 Nm 3 of any gas (measured at 0 °C and 1 atmosphere of absolute pressure) equals 37.326 scf of that gas (measured at 60 °F and 1 atmosphere of absolute pressure). 1 kmol of any ideal gas equals 22.414 Nm 3 of that gas at 0 °C and 1 atmosphere of absolute pressure ... and 1 lbmol of any ideal gas equals 379.482 scf of that gas at 60 °F and ...