Portable device for long term integrative personal sampling of VOCs and other gaseous air pollutants

摘要

Apart from passive dosimeters based on the principles of diffusion on sorbent materials, VOCs can be collected passively using evacuated sampling vessels such as SUMMA canisters. The basis of this last methodology was never applied for personal smapling because of physical limitations in size and flow controlling capacities. From the development of ain innovative mechanical controller which can extend the sampling duration and can be configured to achieve any flow rate, a portable device for passive personal monitoring of VOCs and others gaseous air pollutants such as CO, CO_2 or CH_4 was recently developed.