TE-200-PAS Passive Air Sampler, Outdoor
The TE-200-PAS outdoor passive air sampler collects persistent organic pollutants (POPs) and polycyclic aromatic hydrocarbons (PAHs) in ambient air without requiring electricity or maintenance. Polyurethane foam passive air samplers (PUF-PAS) are the most common type of passive air sampler used for a range of semi-volatile organic compounds (SVOCs), including regulated persistent organic pollutants (POPs) and polycyclic aromatic hydrocarbons (PAHs). This system provides cost-effective, long-term monitoring for environmental compliance and research applications.
Operating Principle
The PUF disk is generally mounted inside two stainless steel bowls to buffer the air flow to the disk and to shield it from precipitation and light. Passive air samplers house a polyurethane foam disk (PUF) which is uniformly porous to allow gaseous chemicals to penetrate. PUF disk passive samplers have been shown to capture both gas-phase and particle-phase persistent organic pollutants (POPs) in ambient air with an equivalent air sampling rate of ∼4 m³/day. The uniformly porous foam structure ensures effective collection of target compounds during deployment periods of weeks to months.
Key Specifications
- Deployment: Weeks to months without power or maintenance
- Equivalent air sampling rate: ~4 m³/day
- Construction: Stainless steel double-dome housing
- Weather protection: Designed for outdoor deployment
- Mounting: Includes stainless steel bracket
System Components and Compatibility
The TE-200-PAS includes the outdoor air sampler and stainless steel mounting bracket. The system requires TE-1014 PUF disks as the collection substrate. The samplers with the polyurethane foam plugs are deployed and collect the POPs in ambient air. The PUF disks are later removed from the device and transported to a lab for further analysis.
Maintenance and Operation
The passive design eliminates the need for electricity, pumps, or complex maintenance schedules. Simply deploy the sampler with a fresh TE-1014 PUF disk, retrieve after the desired sampling period, and send the exposed disk to a certified analytical laboratory. These instruments can be deployed quickly, easily, and in any location. They do not require electricity and are maintenance free and require very little interaction from the user.
Applications
The TE-200-PAS is widely used for:
- Ambient air quality monitoring for POPs and PAHs
- Environmental compliance and regulatory reporting
- Spatial and temporal trend assessments
- Background and remote location monitoring
- Research applications in atmospheric chemistry
- Source apportionment studies
Data from PUF-PAS are key indicators of effectiveness of global regulatory actions on SVOCs, such as the Global Monitoring Plan of the Stockholm Convention on Persistent Organic Pollutants. Given their low cost and simplicity, passive air samplers are the preferred option for conducting concurrent sampling at multiple sites for monitoring and research purposes.