Reliable Ambient Air Sampling with Passive Collector Technology

Monitor agricultural air pollutants over time with AgroEnviroTest’s accurate, low-maintenance ambient air samplers.

Ambient Air Samplers

At AgroEnviroTest, our Ambient Air Samplers with Passive Collectors provide a simple yet powerful solution for monitoring atmospheric pollutants like ammonia (NH₃) and hydrogen sulfide (H₂S) over extended periods. These samplers require no power supply or active pumping systems, relying instead on natural diffusion to capture pollutants onto selective media. This low-maintenance approach is ideal for farms, composting operations, and environmental studies where baseline air quality data and odor assessments are critical. By partnering with industry leaders such as GAO Tek and GAO RFID, we offer technology that supports continuous environmental stewardship and compliance with evolving regulations across North America. 

Hardware

Passive sampling tubes or badges with selective adsorbent materials are complemented by Chemical and Gas Sensorsto validate pollutant absorption data for environmental risk

Weather-resistant mounting fixtures and shelters use LoRaWAN Accessoriesto ensure secure outdoor deployment and data transmission from passive sites near financial infrastructure.

Tamper-proof, easy-to-install housings integrate UHF RFID Readers, Tags & Accessoriesto enable secure access control and audit trails at sampling locations under insurance monitoring.

Software

  • Data entry and sample tracking software for chain-of-custody management 
  • Integration with environmental data management platforms for trend analysis 

Cloud Service

  • Secure cloud database for storage of sampling schedules and results 
  • Remote access for monitoring site deployments and retrieving historical data 
  • Automated reminders for sample collection and analysis 

Key Features and Functionalities

  • Passive diffusion sampling requiring no external power or pumps 
  • Long-term pollutant capture from days to weeks, providing cumulative exposure data 
  • Easy deployment in remote or hard-to-access locations 
  • Compatible with laboratory analysis methods such as ion chromatography and spectrophotometry 
  • Robust against environmental variables like wind and temperature fluctuations 

Integrations & Compatibility

  • Works with AgroEnviroTest’s environmental data platforms for comprehensive air quality management 
  • Compatible with third-party laboratory information management systems (LIMS) 
  • Easily incorporated into multi-parameter environmental monitoring programs 
  • Supports data sharing and regulatory reporting via GAO RFID-enabled devices 

Relevant U.S. & Canadian Standards

  • U.S. EPA Method TO-11A 
  • ASTM D6646 – Standard Practice for Sampling 
  • Canadian Council of Ministers of the Environment (CCME) Air Quality Guidelines 
  • OSHA Air Contaminants Standards 
  • Environment Canada Emission Monitoring Guidelines 

Benefits

Cost-effective and low-maintenance solution for long-term air quality monitoring 

Provides baseline data critical for odor control and air pollution studies 

Enables compliance with environmental regulations with credible, verifiable data 

Supports informed decision-making for farm management and environmental protection 

Minimizes operational disruption due to passive and silent sampling 

Applications

  • Ambient air quality monitoring near livestock farms and manure storage 
  • Odor impact assessments for composting and waste management sites 
  • Environmental baseline studies in rural and agricultural communities 
  • Air pollutant trend analysis for regulatory compliance and reporting 
  • Support for research projects on atmospheric ammonia and hydrogen sulfide fluxes 

Industries Served

  • Livestock and dairy farms 
  • Compost and organic waste management 
  • Environmental consulting and research 
  • Regulatory and governmental agencies 
  • Agricultural sustainability and compliance programs 

Case Study

Dairy Farm Air Quality Monitoring – Wisconsin, USA

A Wisconsin dairy deployed our ambient air samplers around barns and lagoons to gather ammonia concentration data over several weeks. The data helped optimize ventilation strategies, reducing ammonia emissions by 18%. 

Compost Facility Odor Assessment – Oregon, USA

An Oregon composting operation used AgroEnviroTest passive samplers to track hydrogen sulfide levels. The collected data supported community odor complaint investigations and enhanced site odor management plans. 

Agricultural Air Quality Research – Manitoba, Canada

Researchers at a Manitoba university used our passive collectors for long-term monitoring of ammonia levels near grain storage facilities. The study informed best practices for minimizing emissions during storage and handling. 

Interested in simple, reliable air quality monitoring solutions?

AgroEnviroTest is ready to support your project. Contact Us Today to learn more, request a quote, or discuss how our Ambient Air Samplers with Passive Collectors can help your business meet environmental goals.