Environment & Air Quality
The benefits & characteristics of these systems are:
Ø Almost any meteorological sensor can be measured by the data loggers which we use, allowing stations to be customized for each site.
Ø Typical sensors used to monitor meteorological parameters include but are not limited: wind speed, wind direction, delta temperature (SRDT), air temperature, water temperature, soil temperature, relative humidity, solar radiation, precipitation, atmospheric pressure.
Ø Measure ambient gas and particulate concentrations, O3, SO2, CO, PM, NOx, BTX, CH4… stack emission and visibility.
Ø Can be setting-up as mobile laboratories.
Ø Ultrasonic sensors can be used also.
Ø We have the know-how and experience in supplying turn-key monitoring systems and networks according to our customer’s needs.
Ø Availability of sounding systems that are pertaining to Troposphere & Ionosphere in conjunction with systems that serves related fields such as geomagnetism and solar activity.
In the air quality and pollution monitoring systems, many applications exist where there is a requirement for monitoring ambient or outdoor air quality with respect of Particulates (PM10, PM2.5) gases and solvents or Poly-Aromatic Hydrocarbons PAH's.
Local and national governments often establish regional or national networks of monitoring stations, whilst in the industrial processes such as refineries, landfill, construction / demolition operations, it may require monitoring data to evaluate their impact on the local environment.
Systems come in a variety of enclosures and configurations can be set according to the regional requirements and may be located on site boundaries, by roadsides for traffic pollution monitoring, or in rural locations to establish background pollution levels. Measurements and data acquired by these systems can be used for compliance monitoring, alarming or notification, and air-quality and dispersion modelling.
A wide range of gas analysers can be used with these monitoring systems. Many gas analysers output a user selectable 1, 5, or 10 VDC signal proportional to the concentration of the gas being measured. The used datalogger measures the voltage directly and then scales the voltage into the appropriate concentrations, in ppm or ppb. Control ports on the datalogger are programmed to open and close solenoids to complete the daily self-calibration. Commercially available gas analysers measure concentrations of SO2, H2S, O3, NOX, NO, NO2, CO, CO2, CH4, and THC (total hydrocarbon).
The beta-gage type of particle sampler (PM10 or PM2.5) typically has a voltage output that these dataloggers can measure directly. In addition, the dataloggers can also measure most flow sensors and opacity meters.