US EPA issues Method 325 for refinery fenceline monitoring
Wednesday, 30 September 2015 at 10:40:AM
On 29 September 2015, the US
Environmental Protection Agency (US EPA) issued the much-discussed
The final rule that has been issued aims to “further control toxic air emissions
from petroleum refineries and provide important information about refinery
emissions to the public and neighboring communities”. In order to achieve this,
the rule will require refineries to monitor emissions of the hazardous
pollutant benzene at their facilities. Petrochemical
companies will have until 2018 to comply with the
requirements of the Method, which forms part of the updated US federal
regulation CFR 40.
with Method 325 involves the monitoring of benzene around the boundary of oil
refineries using passive samplers, which are analysed by thermal desorption–gas
chromatography. The same technology is also ideally
suited to monitoring other hazardous volatile organic compounds (VOCs).
Markes International has been closely following the development of
the method over the past year, and is ready to help petrochemical companies and
associated laboratories to comply with its requirements. As well as the
expertise that comes with over 15 years’ experience of supporting customers in
a variety of VOC monitoring scenarios, Markes has developed a suite of
equipment specifically for Method 325.
Markes' package for Method 325 includes:
- EPA 325 sorbent tubes and associated caps specifically to comply with Method 325.
- A 325 Field Station™ to protect the passive sampling tubes from
- A 325 Container™ for secure transport of sampling tubes to and
from the sampling location.
- TubeTAG™ RFID tagging of the sampling tubes to ensure robust
chain-of-custody between the field and the laboratory.
For more on how Markes can aid compliance with Method 325:
- Download our Application Note 114 – Passive monitoring of benzene and other hazardous air pollutants at refinery perimeters in accordance with US EPA Method 325.