Low-cost Gent type sampler constructed for urban atmospheric aerosol sampling

Area of Science:

• Environmental Science
• Engineering

Background:

• Atmospheric pollution poses significant risks to human health and ecosystems.
• Lack of affordable air sampling equipment, especially in developing countries, hinders effective monitoring.
• High costs of imported air samplers limit widespread use.

Purpose of the Study:

• To design and construct a low-cost Gent type sampler for atmospheric aerosol collection.
• To utilize readily available materials and 3D printing technology for cost-effective fabrication.
• To validate the performance of the developed sampler against established monitoring systems.

Main Methods:

• Fabrication of a Gent type sampler using materials like nylon 6.0, PVC, and 3D-printed ABS components.
• Integration of the sampler with a vacuum pump, gas meter, and rotameter to form a complete sampling system.
• 11-month field deployment for atmospheric aerosol sampling and comparison with official PM10 data.

Main Results:

• The constructed Gent type sampler cost less than $100, significantly lower than imported alternatives.
• The sampling system, including auxiliary components, had a total cost of approximately $1200.
• Data collected over 11 months showed good correlation with PM10 mass concentrations from CETESB, São Paulo.

Conclusions:

• The low-cost Gent type sampler is effective and suitable for atmospheric aerosol monitoring.
• Its affordability, ease of operation, and versatility make it ideal for scientific, academic, and environmental education purposes.
• The sampler can be a valuable tool for environmental monitoring networks, particularly in low-income regions.