Volatile organic compounds (VOCs) in the range C2-C28 can be measured using a variety of sorbents to meet the specific applications required by the customer. Polyaromatic hydrocarbons (PAHs) can also be measured using a specific sorbent.

VOC emissions into ambient air originate from a variety of sources. These hazardous gases can present health problems and are therefore widely monitored for compliance with air quality guidelines.

Outdoor sources of VOC pollution:

Vehicles
Industrial processes (including stack emissions)
Fossil fuels
Pesticides
Tobacco smoke

Indoor sources of VOC pollution:

Building materials
Paints and permanent markers
Adhesives
Cleaning products and air fresheners, including dry-cleaned clothing
Refrigerants
Furnishings
Photocopiers
Solvents
Fuels
Tobacco smoke

VOCs can be measured from low parts per billion (ppb) to parts per million (ppm) levels using these thermal desorption sorbent tubes. Sampling times start from 1 hour for pumped sampling up to 4 weeks for passive sampling.

VOCs in soil can also be monitored with these tubes in conjunction with soil probes. Soil contamination can occur in proximity to oil refineries, chemical plants, landfill, petrol stations and industrial sites.

Potential implications of VOC pollution:

Eye, nose and throat irritation
Nausea and headaches
Fatigue
Dizziness
Allergic skin reaction
Involved in ground-level Ozone formation

Sulphur Dioxide