Air Sampling

 Passive sampling is performed by means of diffusive sampling. 

• The results provide a general indication of average pollution concentrations over a period of time. 
• This methodology is not reliant on electricity and is ideal for baseline measurements or where no permanent site has been established 
• Measured pollutants include SO2, NO2, NOx, CO, O3, HF, H2S, BTEX and VOCs 

• Dust sampling is performed to determine dust deposition rates at multiple points within the facility. The results of which can provide a general indication of average dust concentrations over a period of time. 
• Additional analysis of heavy metals can also be undertaken on the samples 

•  TSP refers to airborne particles or aerosols that are less than 100 micrometres in size, usually sampled using a high-volume sampler. 
• PM-10 and PM-2.5 refers to the fine inhalable fractions of suspended dust particles that are regulated due to potential health impacts  

•  Sorbent tube sampling is performed by drawing ambient air through a sampling tube at a pre-determined flow rate over a specified duration by means of a calibrated sampling pump  

•  Determines the concentration of pesticides/PCBs using Polyurethane Foam (PUF) and Dioxins/PAHs using PUF/XAD cartridge with quartz fiber filter.   

•  Continuous ambient air monitoring through the use of sensors that can detect a wide range of different chemicals and be controlled remotely. 
• This technology significantly increases the quantity of collected data in a very scientific and accurate manner