TCEQ unveils new and improved emergency response assets

By | News

As the need to understand air quality around the world becomes evermore prevalent agencies such as TCEQ are looking to new, yet proven technologies such as the mobile real-time DV3000 gas analyser to monitor fleeting emission events which may included BTEX gases like benzene that current ‘reference’ equipment may not detect. For further information on how Duvas Technologies can help with your monitoring needs contact us at

See below TCEQ’s press release 10/11/2020:

HOUSTON – The Texas Commission on Environmental Quality’s ability to detect airborne pollution following hurricanes and other disasters has taken a significant stride forward with a series of additions and enhancements to its emergency response assets, officials announced today.

State lawmakers approved nearly $1 million in 2019 to upgrade two existing TCEQ mobile air monitoring vans and purchase a third—a SMART (Strategic Mobile Air Reconnaissance Technology) Rapid Assessment Survey van—that allows the agency to greatly expand the number of pollutants it monitors and more quickly analyze results.

All three vehicles will help TCEQ better monitor air quality in densely industrialized areas like the Houston Ship Channel, the Beaumont-Port Arthur area, and Corpus Christi’s Refinery Row.

TCEQ Executive Director Toby Baker said the infusion of funds marks “a significant investment in proven technology” that will aid investigators’ efforts to locate concentrations of emissions following hurricanes, fires, and other disasters.

Officials unveiled the new SMART van and one of the upgraded vehicles today at an event in Houston’s Hartman Park.

“This is cutting edge technology,” said Cory Chism, deputy director of the Monitoring Division in TCEQ’s Office of Compliance and Enforcement. “These vehicles are nimble and sophisticated.”

The vans augment a network of over 200 air monitoring stations across the state, maintained by TCEQ and its partners, equipped with more than 400 individual air quality monitors.

TCEQ’s Regional Offices also deploy advanced handheld monitors, which take instantaneous readings of pollutants that reflect air quality at a particular location, to assist their investigations.

An upgraded version of the handheld devices—now capable of isolating benzene, critical for monitoring areas such as the Ship Channel—are especially useful in the wake of hurricanes, when stationary monitors may have been taken offline to protect agency assets.

To further enhance its surveillance capabilities following disasters, TCEQ recently purchased four unmanned aircraft systems, aka drones.

TCEQ obtained a Mavic 2 Pro Drone with smart controllers, a Mavic 2 Zoom UAS, and two Phantom 4 Pro + V2.0 UAS, along with a DroneSense Software Platform that will allow live stream video during disaster events. TCEQ is planning to expand the fleet and send a Mavic 2 Zoom UAS and a Mavic Mini UAS to seven of its Regional Offices.

The drones will provide “a new platform for situational awareness during emergency responses,” Baker said. “Having eyes in the sky after these events will be useful, without putting our staff in danger.”

TCEQ personnel also provided demonstrations of the drones and the handheld monitors at Tuesday’s event.

The two upgraded mobile air monitoring vans feature advanced mass spectrometers capable of sampling more than 1,000 pollutants, including formaldehyde, nitrogen oxide, sulfur oxide, methane, and ozone, among others. These and other instruments will allow agency investigators to quickly sample pollutant hot spots, map air concentrations in an area, and identify locations for sampling over longer durations.

The new Rapid Assessment Survey van, which Chism said pulls in air “like a vacuum cleaner,” can measure 16 different pollutants and analyze results in real time while driving up to 35 mph.

Chism said the SMART van had a trial run recently when it was successfully deployed to assist TCEQ’s air monitoring efforts in the wake of Hurricane Laura, noting that software and an app unique to the vehicle produced color-coded animation that illustrated concentrations of pollutants along survey routes.

The equipment adds a new dimension to TCEQ’s ability to make monitoring data quickly available to the public, Chism added. For example, agency investigators tweeted live updates of the animations while measuring pollutants following Laura—known as “caterpillar trails”—from surveyed locations.

“The instrument also has a GPS system built into it, so every time you get a SO₂ reading, for example, you also get a GPS coordinate, which tells you exactly where the concentrations are,” he noted.

TCEQ has posted video files of the air monitoring vans, handheld monitors, drones, and stationary air monitors.

Landfill Gas Odours, Do You Know What You’re Emitting?

By | Case Studies, News

Duvas Technologies partner with the School of Environmental and Chemical Engineering, Shanghai University and the Shanghai Environmental Monitoring Centre, utilising Duvas’ novel technology to understand ammonia fluctuations across a landfill site in Shanghai in a first of its kind study.

Odours are commonly associated with landfill sites and they can affect the air quality for nearby residents. In this study the aim was to monitor these emissions across an entire landfill site over different seasons using our DV3000 real-time mobile gas analyser.

If you would like access the whole paper or would just like to learn more please click here or contact us at

Understanding Ozone Formation – How The DV3000 Can Help.

By | Case Studies, News

Poor air quality, of which ozone formation is a key part, has been linked with many health issues.

Ground level ozone formation occurs due to the interaction between VOC’s, NOx and sunlight.

Whilst this is a natural reaction, ozone formation has drastically risen due to the increased amounts of precursors at ground level, caused by man-made activities.

The DV3000 real-time mobile gas analyser is unique in the market as it can measure multiple VOCs, NO, NO2 and O3 simultaneously at low ppb levels, increasing the users’ understanding of this process and potentially aiding in the development of strategies aimed at reducing ozone formation.
To understand more please visit  or contact us at

Duvas Technologies welcomes Dr. Ebénézer Tetsi to the team.

By | News

We are happy to welcome Dr. Ebénézer Tetsi to Duvas Technologies to join our team of Technical Engineers. Eb as he likes to be known obtained his PHD in the search for new thermoelectric and magnetic oxide materials using experimental and computer modelling techniques. Since he completed his PHD he has worked in the gas analysis industry. Eb will be a great addition to the team as we focus to  build more DV3000’s and develop Duvas Technologies. Outside of work he spends is spare time enjoying folk music, being a scout leader and playing football.

Do you need clear visibility of data whist monitoring air quality in real-time?

By | News

Do you need clear visibility of data whist monitoring air quality in real-time? If so the DV3000 via the Duvas mobile app provides geo-coded data, every second, with clear alarms, allowing the user to understand the real-time environment the instrument is monitoring whilst you are driving.

For further information on how Duvas Technologies can help with your monitoring needs contact us at

To learn more more visit our marketing page here or to view the survey replay visit here

Terrible gas leak enforces the need for appropriate monitoring equipment.

By | News

The guardian reports today of a terrible tragedy in India where a substantial leak of styrene gas has caused the death of at least nine people with hundreds hospitalised as a result. Styrene is reasonably anticipated to be a human carcinogen and when inhaled can cause severe gastrointestinal effects, respiratory problems and and epidermal irritation. In a factory surrounded by a large populous it is important to understand where the gas has dispersed to ensure the safety of first responders, workers and the general public alike. Events such as these highlight the importance of having suitable monitoring equipment to detect these leaks and then monitor the wider dispersal. To read the entire article click here. For further information on how Duvas Technologies can help with your monitoring needs contact us at

It’s Been a Busy Start to 2020

By | News

It has been a busy start to 2020…
The first DV3000 has just been shipped from cold and wet Banbury to the much warmer climes of the U.A.E. Its use in Ajman will aid enforcement teams in detecting pollution from industrial areas that are close to residential districts with particular attention to BTEX, of which Benzene is a known carcinogen. Their team visited the UK this week to undergo training at our head office to fully understand the functionality of the DV3000 and how to best deploy the real-time mobile gas analyser.

For further information on how Duvas Technologies can help with your monitoring needs contact us at

#benzene #cleanair

Merry Christmas and Happy New Year

By | News

As 2019 draws to a close, we would like to thank our global partners for helping us to achieve new milestones in their respective markets, all the DV3000 users for providing us with invaluable feedback and finally the Duvas team for working exceptionally hard throughout the year to help the business achieve its goals for 2019.
Wishing everyone a Merry Christmas and a Happy New Year