National Physical Laboratory
NPL provides a comprehensive range of environmental research, measurement, calibration and consultancy services in the areas of air pollution and air quality. Services include air quality surveys using mobile monitoring stations, diffusive samplers and remote sensing techniques, stack emissions monitoring, standard gas calibration mixtures, gas analyser calibration and testing, and laboratory analytical services for gaseous samples. NPL is the UK's National Measurement Institute, and is a world-leading centre of excellence in developing and applying the most accurate measurement standards, science and technology available. For more than a century NPL has developed and maintained the nation's primary measurement standards. These standards underpin the National Measurement System infrastructure of traceability throughout the UK and the world that ensures accuracy and consistency of measurement. NPL ensures that cutting edge measurement science and technology have a positive impact in the real world. NPL delivers world-leading measurement solutions that are critical to commercial research and development, and support business success across the UK and the globe.