Is a sampling train used to measure emissions from locomotives?

A sampling train is indeed not specifically designed for measuring emissions from locomotives. Instead, sampling trains are commonly employed in various environmental monitoring scenarios to collect air samples for analysis of pollutants. These devices are typically used in stationary source testing, such as monitoring emissions from industrial facilities or power plants.

In the context of locomotives, emissions testing usually requires specialized equipment designed to account for the dynamic nature of train operations, such as the use of portable emission measurement systems (PEMS) or onboard emission analyzers that can capture data in real-time as the locomotive moves. These systems are tailored to the unique conditions provided by mobile sources, rather than the stationary methods employed in a sampling train setup.

Using the correct equipment for the specific context of emissions testing is crucial for obtaining accurate and reliable data.