초록 ▼

A novel multi-gas passive sampler is described, whereby different collection media are packed into one passive sampler to collect a variety of air pollutants (or groups of air pollutants) at the same time. By comparison with known commercially available passive samplers—in which only a single collec

A novel multi-gas passive sampler is described, whereby different collection media are packed into one passive sampler to collect a variety of air pollutants (or groups of air pollutants) at the same time. By comparison with known commercially available passive samplers—in which only a single collection medium is used to collect a single air pollutant of or group of air pollutants—the MGPS is more cost effective, convenient to use and more environment-friendly.

대표청구항 ▼

I claim: 1. A multigas passive sampler, comprising:(i) a body having an open end and a closed end;(ii) a plurality of installable and removable sampler elements carrying selected sampler media inside said body, for sequentially collecting a variety of pollutants from air entering said body through t

I claim: 1. A multigas passive sampler, comprising:(i) a body having an open end and a closed end;(ii) a plurality of installable and removable sampler elements carrying selected sampler media inside said body, for sequentially collecting a variety of pollutants from air entering said body through the open end thereof, at least two selected sampler media being sectors of a single sampler element; and(iii) a diffusion barrier covering said open end of the body and at least one spacer ring for maintaining fixed spaces among said plurality of installable and removable sampler elements.