• Thumbnail for Portable emissions measurement system
    A portable emissions measurement system (PEMS) is a vehicle emissions testing device that is small and light enough to be carried inside or moved with...
    25 KB (3,062 words) - 16:23, 9 January 2024
  • Thumbnail for European emission standards
    vehicles Portable emissions measurement system Regulation on non-exhaust emissions Type approval Ultra-low-sulfur diesel United States vehicle emission standards...
    86 KB (7,210 words) - 20:45, 16 May 2025
  • Vehicle emissions control is the study of reducing the emissions produced by motor vehicles, especially internal combustion engines. The primary emissions studied...
    29 KB (3,620 words) - 00:40, 24 May 2025
  • Thumbnail for Volkswagen emissions scandal
    not obtain one. They used a portable emissions measurement system, making it possible to collect real world driving emissions data, for comparison with...
    268 KB (25,180 words) - 01:36, 31 May 2025
  • Not-to-exceed (category Vehicle emission controls)
    change Western Climate Initiative Portable emissions measurement system Dieselnet, "Applicability and Test Cycles", Emission Standards » United States Heavy-Duty...
    16 KB (2,280 words) - 23:52, 7 April 2025
  • an emissions reduction technology for a pollutant Identifying a mobile source Utilize a Portable Emissions Measurement System to measure emissions of...
    10 KB (1,227 words) - 11:13, 27 May 2025
  • measured emissions of laboratory tests. To measure emissions during the on-road test, vehicles are equipped with a portable emissions measurement system (PEMS)...
    23 KB (2,560 words) - 01:57, 24 May 2025
  • emissions AP 42 Compilation of Air Pollutant Emission Factors Emissions standard List of low emissions locomotives Motor vehicle emissions Portable Emissions...
    64 KB (5,998 words) - 17:16, 13 May 2025
  • road testing with portable emissions measurement system which adheres to the further expanded European Union's Real Driving Emissions. Expanded testing...
    6 KB (702 words) - 18:34, 22 August 2023
  • CO2, and subtracting half of the percent CO from the O2. Portable emissions measurement system Air–fuel ratio "Archived copy" (PDF). Archived from the...
    1 KB (166 words) - 05:58, 18 October 2023
  • Thumbnail for Flame ionization detector
    gas monitoring, fugitive emissions monitoring and internal combustion engine emissions measurement in stationary or portable instruments. The first flame...
    11 KB (1,381 words) - 12:33, 26 May 2025
  • space for developing enhanced on-board diagnostics and portable emissions measurement systems. The facility also includes a separate advanced chemistry...
    86 KB (7,939 words) - 14:36, 11 May 2025
  • Radiated Emissions from Integrated Circuits—Surface Scan Method (Loop Probe Method) 10 MHz to 3 GHz J1752/3, Measurement of Radiated Emissions from Integrated...
    24 KB (3,136 words) - 10:00, 27 September 2024
  • Thumbnail for Air conditioning
    of visible light (940 nm). This system is commonly used on mini-split air conditioners because it is simple and portable. Some window and ducted central...
    98 KB (10,242 words) - 05:38, 23 May 2025
  • AIR Index (category Emission standards)
    on at least two independently sourced vehicles, with a portable emissions measurement system (PEMS) in real-world urban driving situations. The rating...
    7 KB (546 words) - 12:37, 23 May 2024
  • Thumbnail for National Ambient Air Quality Standards
    dispersion modeling Contamination control Clean Air Act (1990) Portable emissions measurement system Toxic Substances Control Act of 1976 "Definition of National...
    24 KB (2,534 words) - 10:51, 29 May 2025
  • Thumbnail for Multi-component gas analyzer system
    compact, portable, weather-resistant containers allowing for in situ measurements of various types of outgassing terrains. Gas is pumped into the system at...
    22 KB (2,141 words) - 22:16, 22 May 2025
  • industrial systems, and abandoned equipment throughout the world has all but guaranteed their future emissions for many years to come. Fugitive emissions of CFCs...
    11 KB (2,273 words) - 18:24, 26 November 2024
  • Thumbnail for Air pollution measurement
    sometimes expressed as separate measurements of methane (CH 4), NMHC (non-methane hydrocarbons), and THC (total hydrocarbon) emissions (where THC is the sum of...
    41 KB (3,915 words) - 16:31, 29 May 2025
  • petroleum gas (LPG), as opposed to diesel), the three types of emissions modern systems are concerned with are: hydrocarbons (which are released when the...
    30 KB (4,236 words) - 19:23, 24 May 2025
  • Thumbnail for Photosynthesis system
    systems are electronic scientific instruments designed for non-destructive measurement of photosynthetic rates in the field. Photosynthesis systems are...
    22 KB (2,750 words) - 17:29, 25 September 2023
  • Man-portable radar is a lightweight surveillance radar system that does not require vehicle support to transport or operate. Man-portable radars were...
    8 KB (1,054 words) - 15:58, 13 May 2025
  • Thumbnail for Pressure measurement
    Other methods of pressure measurement involve sensors that can transmit the pressure reading to a remote indicator or control system (telemetry). Everyday...
    76 KB (10,204 words) - 05:36, 26 May 2025
  • nasal emission. Thus, a complete system for nasometry consists of a combined nasalance measurement system and nasal emission measurement system. However...
    2 KB (208 words) - 22:03, 12 September 2023
  • Thumbnail for Aerosol mass spectrometry
    Aerosol mass spectrometry (category Aerosol measurement)
    the prohibition of coal burning to improve air quality. However, the measurement and analysis of aerosols only became established in the second half of...
    26 KB (3,456 words) - 02:39, 28 December 2024
  • Thumbnail for Data logger
    digital data loggers (DDL). They generally are small, battery-powered, portable, and equipped with a microprocessor, internal memory for data storage,...
    13 KB (1,766 words) - 22:58, 28 May 2025
  • ApSimon H., Oxley T., et al., 2016, A portable emissions measurement system (PEMS) study of NOx and primary NO2 emissions from Euro 6 diesel passenger cars...
    12 KB (1,088 words) - 19:52, 22 April 2025
  • Thumbnail for Soil respiration
    a closed mode design system in other regards. These are either open or closed mode instruments that are portable or semi-portable. They measure CO2 soil...
    41 KB (5,597 words) - 09:38, 25 May 2025
  • Thumbnail for Infrared thermometer
    contact thermometer), then the sensor's emissivity setting can be adjusted until the temperature measurement by the IR method matches the measured temperature...
    12 KB (1,431 words) - 21:10, 29 May 2025
  • Thumbnail for Atmospheric dispersion modeling
    Atmospheric dispersion modeling (category Industrial emissions control)
    dispersion terminology List of atmospheric dispersion models Portable Emissions Measurement System (PEMS) Roadway air dispersion modeling Useful conversions...
    33 KB (3,659 words) - 18:10, 12 May 2025