42 Air Monitoring What is in the air leaving your sites?


Why would you want to know and what could you do about it anyway? Many processes in the petrochemical, refi ning, gas and oil industries cause known or unknown emissions of gases and particles into the air. Whether the reason is legislation, a company Environmental Social and Governance (ESG) policy, to protect sensitive neighbours, such as schools and communities, or to just understand what is in the air at a site boundary, real-time, continuous monitoring makes sense.


Small sensors with standalone power and communications offer a convenient and cost-effective solution. Measurement nodes or ‘pods’ can be easily installed on fences, posts or walls around the site and its perimeter, streaming accurate data securely to the cloud and the client’s database, and triggering alerts.


Exceedance alerts can be set at a level and frequency to suit the application, potentially triggering a bag sample to be taken, for more detailed air composition analysis. This type of monitoring also allows operators to assess a wide range of pollutant levels across space and time. A time-series plot of multiple measurements, including NOx


, SOx , CO2 , CO, TVOC, CH4 , H2 S and particulate matter can be reviewed against known site


operations and events. “We fi nd that as soon as operators start to see the readings coming in, are able to track peaks of pollutants and relate them to operations and events, they are hooked, and can see exactly how they can use this information”, comments AQMesh CEO, Amanda Billingsley.


Continuous readings at 15-minute intervals – or even 1-minute – can provide a more complete emissions picture than intermittent bag samples or even open-path monitoring, particularly when combined with wind speed and direction information. A single AQMesh pod can measure over 10 pollutants at the same time, plus wind speed and direction, temperature, atmospheric pressure and RH%. These confi dential readings are all made available on the same secure platform, accessible either by login, or by API.


There is a major trend towards industrial operators including oil and gas, petrochemicals, construction, mining and transport – rail and ports, as well as roads – wanting to look closely at air pollution on and around their sites.


Analysis of air pollution measurements, used with wind speed and direction information, and potentially modelling, can help identify pollution sources (which direction and how far away) as well as which pollution is generated locally (directly manageable) and which is more regional (requires more collaboration). This means an operator can distinguish between pollution generated by their operations or that of a neighbouring plant.


Multi-parameter monitoring systems, such as AQMesh, use the mobile phone network and can be solar powered, meaning they need no infrastructure investment. It is literally a 10-minute job to attach the pod to a post and start to see readings online. Each pod can take many measurements, including NO2


, SO2, H2 S, CO2 , CO, TVOC, CH4 , PM1 , PM2.5 RH% and can be used as a network, with smart, remote calibration.


Small, micro or low-cost sensors can offer a cost-effective solution for industrial boundary monitoring, with a range of benefi ts: real-time understanding of air pollution changes around a site perimeter means fast action can be taken. Geographically pinpointed, regular air composition readings can feed into feasibility or environmental impact studies. AQMesh has been used by industrial operators across continents, with direct, worldwide support from the manufacturer.


Complementing ongoing stationary monitoring, the hand-held Gazoscan used a sensitive and accurate laser sensor to scan for methane, across a distance of up to 100m. The portable laser Inspectra samples from a local point and can detect, measure and store methane readings from around a site. Integrated software allows secure, traceable readings to be logged directly against a geographic and/or named infrastructure point, with photos and notes.


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59970pr@reply-direct.com , PM4 , PM10 , total particle count, PM Total, O3 , NO, temperature, pressure and


A simple and precise way to detect radon


contamination Lung cancer is a serious and deadly disease that affects millions of people around the world. Unfortunately, over ten percent of cases of lung cancer are linked to an excess of exposure to radon, according to a report from the World Health Organisation.


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Radon is an odourless, colourless radioactive gas that is present in varying degrees all around us. Most of the radon in indoor air comes from soil and is proving to be more of a hazard than levels of radon in the drinking water supply. When radon rises into a home or commercial property, it can be trapped and build up to dangerous levels for people inside the building. The radioactive decay will then create alpha particles, which in turn can cause permanent damage to lung tissue.


In order to address the threat posed by radon, Euro-Gas has created the Radon SS, a state-of- the-art phototransistor gas sensor that provides exceptional performance. With the ability to detect levels ranging from 0-65,000Bq/m3


ECO PHYSICS AG has launched the nCLD AL3 / nCLD8555CY, a versatile and fl exible ambient air monitoringinstrument suitable for use in a variety of settings including fi xed monitoring stations, mobile laboratories and rack installations.


In addition to monitoring ambient air quality, the nCLD AL3 / nCLD8555CY is also capable of monitoring air quality in production plants and offi ces, making it an ideal choice for businesses looking to maintain compliance with threshold limit values (TLV).


The three-channel NOX-detector operates on a modular principle, with individually adjustable measurement ranges for NO, NO2


, NOX and NH3


parameters. The instrument’s inlet operates at ambient pressure, and calibration is both quick and automatic.


All necessary data is continuously stored and readily available, allowing for easy access and monitoring in accordance with ISO EN 14211 standards.


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New, versatile and fl exible ambient air monitor


, and a


standard range of 1750pCi/l Rn, this unique sensor is designed to be user-friendly and can be easily integrated into both portable and fi xed air quality and gas detection devices. Operators can rely on the complete data provided by the Radon SS, including current and average Rn alpha particle concentration, to effectively monitor and manage radon levels.


The Radon SS is an innovative solution for detecting and monitoring radon contamination in indoor environments. This simple and effective tool provides valuable information to help protect people from the harmful effects of radon exposure.


More information online: ilmt.co/PL/Q7mG For More Info, email:


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