Aeroqual AQS 1 Air Quality Monitors and Cloud

Aeroqual is an air quality monitoring company headquartered in Auckland, New Zealand, with a US and Canada subsidiary. It designs integrated, real-time monitoring systems that make air projects less costly and less risky for remediation, construction, oil and gas, occupational health and urban networks, and reports more than 4,000 projects in over 70 countries.

The AQS 1 fenceline monitor is modular, measuring PM1 to TSP, VOCs, O3, NO2, CO, H2S, SO2, CH4 and benzene plus weather and noise, with pumped sampling, automatic baseline correction every 60 seconds and NIST-traceable factory calibration. The AQM 65 ambient station and Ranger handheld complete the range. Aeroqual Cloud and OneView give remote real-time data, site contribution calculations and automated reports. Partners include Tetra Tech and Langan.

• AQS 1 fenceline monitor: modular PM and gas measurement with weather and noise inputs.
• Automatic baseline correction: gas zero corrected every 60 seconds to limit drift.
• PCX particle module: multiple PM fractions with flow control and inlet heater.
• AQM 65 station: ambient monitoring for urban and community networks.
• Ranger handheld: portable monitor for up to 15 pollutants with swappable sensor heads.
• Aeroqual Cloud and OneView: remote data, site contribution and automated compliance reports.

Contractors on metro, bridge or high-rise projects in Hanoi can place fenceline monitors to prove dust control to authorities and residents. Oil and gas or chemical sites can use handheld Ranger units for occupational exposure checks. Developers redeveloping former industrial land can monitor VOCs during soil remediation.

Automatic baseline correction and an O3-filtered NO2 sensor reduce drift and cross-interference, lowering field maintenance. Modular sensor heads let a single unit be adapted to each project's pollutants. Remote power scheduling and winterisation options support off-grid deployments, and automated reports help contractors document compliance with dust and air monitoring plans.

Construction, demolition and site remediation increasingly require continuous perimeter dust and gas monitoring as part of environmental management plans. In Vietnam, large infrastructure and urban redevelopment projects close to residential areas are creating demand for real-time, defensible air data for contractors and project owners.

Aeroqual is headquartered in Auckland, New Zealand, and was acquired by Industrial Scientific, a gas detection company, in late 2025, while continuing to sell under the Aeroqual brand. Its co-founder Geoff Henshaw serves as CTO, and it sells through a global distributor network.