On 4-23-09, US EPA Performance Specification
16 (PS-16) for predictive emission monitoring systems (PEMs) was
published to the Federal Register.
These system represent an innovative way of monitoring
stack emissions in a fully compliant manner without the need for
hardware and analyzers.
Predictive emission monitoring
systems (PEMs) can be used as alternatives to CEM systems.
Unlike CEMs, PEMs determine source emissions without
measuring them directly.
These systems predict emissions using process parameters
and know relationships between these parameters and emission
concentrations. They
operate on principles ranging from simple combustion
relationships to more complex computer models that are trained
using historical pollutant data and process data.
The EPA has allowed and will
continue to allow the use of PEMs under the New Source
Performance Standards (NSPS) as well as under Clean Air Markets
rules. Sources using
PEMs include industrial boilers, gas turbines, internal
combustion engines and others.
Performance Specification 16
(PS-16) sets the performance requirements for PEMs to meet in
order to ensure compliance.
Download PS-16