VOC monitoring that catches the pattern a single reading misses.
Volatile organic compounds come from cleaning products, paint, adhesives and processes. Aqueduct reads a VOC index per zone, aligns it with time and occupancy, and alerts on spikes and on patterns that repeat, such as every night after cleaning.
VOCs rarely stay high. They come back at the same time.
What is measured
- A VOC index per zone
A relative index of total VOCs against the zone's own normal air.
- Time of day and occupancy
Readings aligned with shifts, cleaning schedules and occupancy.
- Spikes and sustained levels
Alerts for sharp rises and for raised levels that last.
Patterns worth chasing
- Nightly cleaning peaks
VOCs climbing when the crew arrives and products are used in poorly ventilated rooms.
- New materials
Fresh paint, flooring or furniture keeping levels up for weeks after a fit-out.
- Process emissions
Solvent use in labs or production spreading to neighboring zones.
Why indoor VOCs are a building problem.
higher indoors than outdoors: how far many VOCs can run, and they are consistently higher inside.
Source: US EPAbackground outdoor levels can be reached during and just after activities such as paint stripping.
Source: US EPAAn example
Observed in the field: at one site, VOCs climbed to dangerous levels every night when the cleaning crew came in. Daytime spot checks never showed it; the nightly pattern on a continuous trace did.
Limits
A VOC index is relative. It does not identify individual compounds or measure formaldehyde on its own, so lab sampling confirms what the compound is.
New sensors need a settling period before their baseline is reliable.
Related
Common questions
No. aQ AirSafe reads a VOC index, which shows a change in total VOCs against the zone's normal air. Identifying specific compounds needs air sampling and lab analysis, which the index helps you time. See IAQ monitoring.
Switch to lower-emission products, move cleaning to when ventilation is running, or raise ventilation during cleaning. aQ AirSafe can do the last one automatically where control is enabled, with owner approval. See AI optimization.
Rooms with cleaning, fit-out work, labs or process solvents, and occupied rooms next to them. New furniture and fresh paint also release VOCs for weeks after a refit. See air quality sensors.
aQ AirSafe aligns readings with time of day and occupancy across weeks. A rise that returns at the same hour points to a routine such as cleaning; a single spike points to an event. See indoor air quality compliance.
See Aqueduct on your own facility.
Bring a site, a utility bill or a question. We will show you where the loss is.