|Mobile Audit Trailer
The Emission Measurement Section (formerly Bureau of Technical Services) maintains a mobile trailer
that has the capability to sample and analyze industrial
stack emissions for several air pollutants. The trailer
can be dispatched in response to a special request from
DEP's Air Compliance and Enforcement program or for
routine audits of a facility's permit required continuous
emissions monitoring systems (CEMS).
Equipped with a complement of analyzers and sampling
lines, the trailer can accurately detect stack emission
levels of the oxides of nitrogen, (NOx), and organics.
Both of these pollutants are instrumental in the formation
of ozone, which is both a promoter of smog and a lung
irritant. The trailer can test for sulfur dioxide (SO2)
the leading cause of acid rain. In addition, it can
test for the major green-house effect gas, carbon dioxide
(CO2), and also carbon monoxide (CO), an indicator of
incomplete combustion. The trailer is equipped with
an on-board computer to process the sampling data and
provide an accurate determination of whether or not
a source of air emissions is meeting its permit limitations.
It can also be used to assess whether a source's on-site
monitoring equipment (required by either permit, regulation
or the enforcement process) is accurately monitoring