Monitoring Equipment

ESC 8832 Data Logger. Collects one minute and hourly data from all parameters being monitored. Data is stored to memory and down loaded by Victoria BCMOE on an hourly basis. The ESC 8832 Data Logger are only used at the Correlieu and Maple Drive sites to remotely initiate daily span/zero sequences used to check analyzer performance.

The 910A Air Sampler Monitors.
API100A/E Analyzer. The API 100A and 100E models are SO2 analyzers that use chopped UV light to excite SO2 molecules which are picked up by a sensitive photo multiplier tube and translated from a voltage to a concentration in parts per billion or parts per million. When a thermal oxidizer and SOx scrubber are plumbed in to the 100A or E analyzer it becomes a H2S or TRS analyzer depending on the temperature the oxidizer is running at. Ambient air is passed through the SO2 scrubber and through a quartz tube heated to approximately 850 degrees C. This causes the TRS molecule to convert one to one to a SO2 molecule which is then scaled by the analyzer thus giving an accurate reading of the Total Reduced Sulpher (TRS).
PM 2.5 Teom. Monitors ambient air for particulate matter (PM) from 2.5 microns to 10 microns in diameter depending on the type of cyclonic sampling heads being used on the instrument. TEOM stands for Tapered Element Oscillating Microbalance and was originally designed to weigh matter in space were there is no gravity. A filter is attached to the end of the oscillating element which has ambient air flowing over it. As particulate builds on the filter it changes the oscillation which the instrument calculates as mass in micrograms per cubic meter.
API 400A Ozone Analyzer. This analyzer uses ultraviolet (UV) photometric’s to determine levels of Ozone in ambient air and provides continuous 1 minute data for collection.
2025 Sequential Dichot. Sample filters are conditioned and pre-weighed to MOE standards. Filters are taken to the field and installed in the Dichot. The operator can then program the Dichot to sample ambient air for 24 hour periods on prescribed dates. The sampled filters are picked up and shipped to the lab were they are conditioned again and re-weighed. The difference in weight  is the particulate that was deposited on the filter during sampling. This sampler provides two filters per 24 hour sample, one PM2.5 and one PM10 using controlled flow and cyclonic sampling heads.
Manual Dichot. Sample filters are conditioned and pre-weighed to MOE standards. Filters are taken to the field and installed in the Dichot. The operator can then program the Dichot to sample ambient air for a 24 hour period on certain date. The sampled filters are picked up and shipped to the lab were they are conditioned again and re-weighed. The difference in weight  is the particulate that was deposited on the filter during sampling. This sampler provides two filters per 24 hour sample, one PM2.5 and one PM10 using controlled flow and cyclonic sampling heads.
PM2.5/PM10 TEOM. Monitors ambient air for particulate matter (PM) from 2.5 microns to 10 microns in diameter depending on the type of cyclonic sampling heads being used on the instrument. TEOM stands for Tapered Element Oscillating Micro balance and was originally designed to weigh matter in space were there is no gravity. A filter is attached to the end of the oscillating element which has ambient air flowing over it. As particulate builds on the filter it changes the oscillation which the instrument calculates as mass in micro grams per cubic meter.
 Nox is still monitored but we have a new analyzer.
 We now have a SHARP 5030 particulate sampler at QJS, these samplers are newer  technology and are replacing TEOM’s.
The visibility monitoring program
The Ministry of Environment is using a remote controlled time lapse camera to monitor visibility in Quesnel. Visibility is closely related to the levels of fine particulate matter and can provide useful information to complement ambient monitoring. The time lapse camera unit will take a picture every 30 minutes. However, the unit is capable of taking pictures every second if and when required. This unit will also help identify area specific dust issues in Quesnel.