Figure 1 (Siloxanes): On a typical day at the trade show D5-Siloxane, likely from personal care products, increases in correlation to visitor traffic, spiking around 11 am, then dropping continuously when presumably the products' effects start to wear off. The next day’s morning they go up again as the crowds arrive.
Figure 2 (VOCs): At night, doors and windows closed for the tiny hours, HVAC systems powered low or off? Typical VOCs from carpets and exhibition materials begin to accumulate. The next morning, doors reopened, triggering a rapid decrease, captured with a PTR-TOF 1000 real-time analyzer.
Figure 3 (Siloxanes): The Analytica 2022 D5-Siloxane pattern is repeating itself, as expected. Going up in the early morning, peaking before noon and then dissipating for the rest of the day.