System for and method of monitoring a gas component

A method of measuring a small concentration of a target gas component in an environmental gas sample by increasing the small concentration to a larger measurable concentration, the method comprising:

• isolating and concentrating, using a concentrator, the target gas component by capturing the target gas component and releasing the captured target gas component to a sensor, wherein isolating the target gas component comprises increasing a concentration of the target gas component so that the concentration of the target gas component is measurable by the sensor;
• and
• measuring, using the sensor, the captured target gas component concentration,
• wherein the method comprises,
• before isolating the target gas component, heating the concentrator to release a baseline gas, and measuring, using the sensor, a baseline gas component concentration;
• and
• after measuring the captured target gas component concentration, determining, with a processor, an accurate target gas component concentration by comparing the baseline gas component concentration and the measured target gas component concentration;
• and
• wherein the method comprises removing, using a filter, an unwanted gas component, and wherein:
• the filter comprises a first molecular sieve having a first pore size, and
• the concentrator comprises a second molecular sieve comprising a second pore size larger than the first pore size.