Basket

Category

Measurement

Seasonal Peak for the Radonova Instrument Workshop

By Measurement No Comments

The season for measuring ground radon is nearly upon us. This coincides with there being a sharp increase in the global demand for reliable radon instruments. For Fredrik Lindén and his colleagues at Radonova’s radon instrument production department, this equates to long days to fulfil customer requests.

”When assembling radon instruments we use state-of-the-art technology, but there is still a requirement for experience and craftsmanship. Our quality standards are very high, and every instrument that is manufactured here is tested for reliability to ensure it is field ready”, comments Fredrik Lindén.

Focus on timely, fast delivery

“To meet market demand, we are currently focusing on producing high volumes of MARKUS 10 – a portable, battery-powered instrument. We pride ourselves on our ability to deliver quickly, therefore we have to stay one step ahead of orders to ensure our stock is always able to accommodate future sales. Every instrument consists of numerous components, which means we have a very close relationship with our suppliers to ensure that all deadlines are met. Parts used to create our instruments are as important as each other, therefore high standards are expected throughout the supply chain”, continues Fredrik Lindén.

Robustness and ease of use

“For a product to be successful it needs to be robust, user-friendly and thoroughly tested – these are critical manufacturing factors for us. MARKUS 10 is a very good example. As you would expect, customers demand a reliable instrument and we always strive to exceed those expectations. Prior to each final assembly, we test all components based on our own high internal standards”, concludes Fredrik Lindén.

MARKUS 10 – an overview

Ground radon is the most common cause of elevated radon levels. MARKUS 10 is a precision instrument that measures high radon concentrations. It is portable and battery-powered. Attach the MARKUS 10 and hollow measurement probe to the ground and simply press a button to start measuring. Air is pumped through the probe tube into a chamber that detects radon daughters (fine solid particles which result from the radioactive decay of radon gas). Following the pumping phase, the measurement phase commences. The result is presented in the display after 12 minutes.

Seasonal Peak for the Radonova Instrument Workshop

Is radon only in basements?

By Home, Measurement No Comments

Radon is completely odorless as well as being invisible. Because it is often found unexpectedly in basements, some people mistakenly believe that it only occurs in basements. This is a dangerous assumption that may damage your ability to protect your home if you are not careful.

Most commonly homes with basements are suspect for having higher radon levels. The fact that porous foundation walls allow radon gas to enter a home is no secret and with most basements containing a sump well, there are many access points from which radon can enter a home.

However, homes above a crawl space suffer the same fate. Whether your crawl space is a dirt crawl (unfinished), poured concrete (finished), or even lined with a protective barrier, radon can still enter your home. Additionally, with its closer proximity to the ground, the living areas of the home may be more susceptible to radon as it does not have the same amount of time to decay in a full basement prior to entering living areas.

Not to be forgotten, homes built on a slab are also at risk for high radon levels. As a matter of fact, homes built on a slab to not have the ‘buffer’ of a basement or crawl space to absorb and dissipate radon gas before it enters the living area of a home.

There is truly no single style of home that is not prone to radon gas and potentially highly dangerous levels.

What about new homes built with radon-resistant construction techniques?

As early as 1990 some homes have been built using radon-resistant materials and with pre-piped radon mitigation systems installed. Clean gravel “airflow layers”, vapor barriers, additional polyurethane caulking, and vent pipes are all widely used. However, as the name states, these techniques are radon ‘“resistant” and cannot fully remove the risk of a high radon level. Testing should still be performed to determine a homes radon level and in instances when a high radon level is present, some of the installed vent pipes used for passive radon reduction can easily be converted to an active system by a professional radon mitigation specialist.

Other sources of radon

If you have certain building materials in your home, then you need to worry about radon sources other than just below your home. In general, naturally occurring stone, rock and brick building materials always contain some Uranium that decays into Radon… These types of stone typically used for countertops and/or fireplace mantels may be a potential source of radon in your home. In most cases, the amount of radon immediate here is not a huge problem, but you need to know for sure.

In general, detection is your number one weapon against radon exposure. Make sure that you test your home regularly. This is the only ways that you will be able to protect yourself against the detrimental effects of radon in your home.

More informations about radon here.

Is radon only in basements

Six steps for a radon free environment.

By Measurement, Workplace No Comments

Since 1974 the Health and Safety at Work Act has required employers to take responsibility for the safety of employees and the public in the UK. The Management of Health and Safety at Work Act were implemented to reinforce the HS@WA. The legislation requires risk assessments to identify significant risks in the workplace (including employees working from home) and carry out actions to minimise those risks.

Radon is a potentially significant risk to health in numerous areas across the UK and in all below ground work spaces. The Ionising Radiations Regulations 2017 (IRR17) requires radiation risk assessments to be carried out .
Radonova has designed the following step-by-step guide to correctly perform Radon screening, to be legislative compliant and ultimately ensure a healthy working environment.

Step 1 – Long-term radon measurement

The radon monitoring process is very simple and inexpensive. The measurement consists in carrying out a survey over 3-month period (preferably in the winter period), in accordance with the Public Health England (PHE) validation scheme . Radon monitoring should avoid times when the building will be unoccupied for extended periods, e.g. school summer holidays.
It is also preferable to use an accredited as well as validated laboratory; such as Radonova.
If the result of the measurement indicates a radon concentration less than the action level for workplaces, 300 Bq m-3 (IRR17), no immediate action is necessary. The Health and Safety Executive (HSE) recommend subsequent measurement to be completed after 10 years or after structural changes .

Step 2 – Occupational Action Level

If the result of the measurement is at or greater than 300 Bq m-3 the IRR17 are applicable . These regulations place responsibilities upon the employer that include taking action to reduce radon levels or manage exposures. You must also notify HSE of these results if the result is greater than 1000 Bq/m3. You can perform a radon measurement during working hours, to check the actual radon exposure of your employees before implementing the remedial actions. Indeed, radon concentrations vary during the day. Therefore, it is possible that the annual average, calculated in step 1, does not reflect the actual radon exposure during working hours. Contact us to define the method that will be most suitable for you. Click here to learn more about targeted measurements.

Step 3 – Inspection and Measurements

If results greater than 300 Bq m-3 (IRR17 are applicable) are measured, it means that radon exposure can be a hazard for your employees. It is then necessary to set up actions to reduce radon levels. Those actions can be simple or require the help of a radon consultant. In cases where the results are greater than 1000 Bq m-3, it will be necessary to find the right solutions to effectively reduce radon levels as soon as possible and inform the HSE.

Step 4 – Follow-up Action

Once remediation measures are in place, it shall be necessary to monitor their effectiveness. Radonova advises to perform a long-term measurement under similar conditions to those in step 1, following the annual maintenance.

Step 5 – Personal Dosimetry

It may be physically impossible or unrealistic to lower radon levels below the action level. In such cases, it is necessary to evaluate the dose due to radon exposure employees may receive. Personal dosimetry will help to the employer to make decisions regarding maximum time an employee can stay in the area with high radon levels. A Radiation Protection Advisor shall be appointed to support dose minimization and measurement.

Step 6 – Healthy Environment

The health risk of radon is well established. Radon is the second leading cause of lung cancer after smoking. It is essential to measure radon wherever you are and to repeat, even the measurements, at least every 10 years and after each structural modification in the building.
The general principle to apply when working with reducing radon levels should be the ALARP principle (As Low As Reasonably Practicable) reducing radon to as low as possible has the greatest potential to minimize risk. But “practical” includes an awareness of costs.
It is also best practice to offer the workforce the option to measure at home. This is a requirement of the employer if they allow the employee to work from home . Mitigation at home is the responsibility of the home owner.

Six steps to a radon-free environment in the workplace. A guide to check the radon content. Order radon measurement.

Radonova launches ROBIN2 – a professional radon sensor with high sensitivity

By Measurement, News No Comments

Radonova Laboratories has launched ROBIN2, broadening its range of radon measurement technologies. The latest version of ROBIN is twice as sensitive as its predecessor and includes an improved response function for optimum compliance with rapid changes in radon levels.

ROBIN2 is a state-of-the-art radon sensor that can be deployed as a fixed installation in smart homes for monitoring and reducing radon levels. It can be mounted in all types of ventilation control units where there is a requirement to monitor radon levels. It can be easily connected to a controller, central unit, data logger, fan control system or PLC and is available in various formats.

The new response function improves measurement accuracy as radon levels fluctuate. This is due to its improved sensitivity, which reduces error at lower levels, otherwise it is limited by deteriorating statistics due to the pulse rate being too low. ROBIN2 has a new motherboard that is more insulated and weather resistant. ROBIN2 is available as a standard or industrial version which can be used for mining. The mining version has enhanced protection against dust and moisture and is optimized for underground measurements.

– I’m delighted that Radonova has enhanced the capabilities of ROBIN, which was the first radon sensor of its kind when it was first launched in 2016. ROBIN2 is without doubt a market-leading detector, due to its new response function and overall stability, said Dag Sedin, a senior advisor at Radonova, who was integral to ROBIN’s initial launch.

ROBIN2 is available now.

About ROBIN2

ROBIN2 measures the radon content of air in Bq/m³ and gives an analog output signal of 1-10V, proportional to the concentration of radon in the air. Compared to its predecessor, ROBIN2 has improved sensitivity and a larger and more efficient measuring chamber. The output signal is also more stable and more consistent with the real radon content variation. If required, the measurement range can be defined by the customer. The radon sensor is protected against electromagnetic interference and can be connected to a thyristor controller. The transducer is mountable without directional dependence and can be permanently installed in a room, ventilation shaft or air handling unit. The mining version has enhanced moisture protection and is built for an underground environment.

Additional features:
• Can measure accurately in both laminar and turbulent airflow
• High sensitivity to provide good time resolution
• Great flexibility and can be customized for OEM

For more information on ROBIN2 visit our dedicated website
For more information about radon and radon measurement visit our website

ROBIN2

Radtrak²® – the world’s leading detector for long-term radon measurement

By Measurement No Comments

With over four million units sold globally, Radtrak2® is the most widely used radon detector for obtaining a reliable and accurate annual mean of radon levels in the home or workplace. Here is a short summary of its features:

Simple, foolproof assembly

The Radtrak2 unit is simple to construct. Included is a plastic top and bottom as well as a transparent plastic film made of CR-39 which is placed at the centre of the radon detector. During measurement, air leaks in through a very small gap between the top and the bottom. When the radon gas in the air decays to radon daughters, radioactive alpha particles are created. When these hit the transparent plastic film, tracks are formed in the film. After the measurement period, the number of tracks is used to calculate the radon level.

Environmentally friendly and robust technology

Since the detector is made of plastic and there are no moving parts, the radon detector rarely malfunctions. Radtrak2 can be used in very demanding environments and is not damaged if dropped on the floor. It is very difficult not to get an accurate measurement when using Radtrak2®. As long as you specify the start and stop times and use an accredited laboratory, you are guaranteed a reliable result. Radonova’s laboratory is always reusing the top and bottom parts of the detector, saving both cost and the environment. The only thing that is not reused is the transparent plastic film which is used for analysis.

Clean plastic film and fine-tuned, accredited analysis

When analysing the transparent plastic film (CR-39), there are certain requirements and stipulations which must be met. Firstly, a clean film must be used, placing demands on the manufacturing process of the detectors. Without an original pure film, it is not possible to analyse the number of tracks accurately after the measurement period. You must also take into account how much radon gas the plastic film has been exposed to before it is placed and sealed in the detector. Similarly, you must make allowances for the film being exposed to radon when it is sent back to the laboratory. Through a carefully controlled process, the laboratory calibrates various plastic films against a known radon source. Well-established routines are necessary to mitigate against error. Therefore, always purchase a radon detector from an ISO 17025 accredited laboratory such as Radonova. At Radonova, quality checks are continuous, ensuring that the radon measurement is correct.

Why measure for radon?

Every year around 230,000 people die of lung cancer caused by radon exposure. Radon gas is part of the element of the uranium decay chain and since uranium is found in many places in the earth’s crust, radon is found almost everywhere. High levels of radon can be found in regions which have a large concentration of rock or have a cool climate. The latter is due to the fact that radon gas levels are usually high in insulated houses that are heated. To be fully aware of radon levels, homeowners should always measure.

Most countries in the world require measurements that provide an annual mean, which usually entails a measurement period of over three months.

Radtrak2

The world’s most accurate radon detector for short-term measurement turns 20

By Home, Measurement No Comments

Radonova has been supplying Rapidos radon detectors for 20 years. In that time, over 250,000 units have been manufactured which have mainly been used for short-term measurements (between seven to ten days). This type of measurement gives a good indication of radon levels that may exist in the home or workplace. Normally, Rapidos detectors are used when you do not have enough time to take a long-term measurement and obtain an annual average – which requires a measurement period of at least three months in most countries.

High accuracy when compared to market alternatives

There are many types of radon detectors for short-term measurement. However, none are as reliable as Rapidos.

“Rapidos continues to be unique, not least because of its large chamber volume for detection and the clean, transparent plastic film that is placed inside the detector. After 20 years of use by customers from all over the world, we know that Rapidos remains the leading and most popular detector for short-term radon measurement”, says Karl Nilsson, CEO of Radonova Laboratories.

Rapidos consists of a plastic lid and bottom with a gap that lets in the air which is measured. Radioactive alpha particles arising from the decomposition of radon gas leave traces in the transparent plastic film made by C39. In order to obtain a precise measurement, it is crucial that you obtain sufficient traces of the film which can then be analysed, especially in view of the short measurement time. The large measurement chamber enhances the detection speed to provide an improved statistic for short-term measurement.

“Many suppliers use the same type of detector for both long and short-term measurement, which in all honesty does not provide sufficient accuracy. Detectors like Rapidos have too small a measurement volume for long-term measurement requirements”, continues Karl Nilsson.

Ideal to use when selling or buying a house

Rapidos is mainly used in relation to the sale or purchase of a property. In this scenario, you often don´t have time to wait for a long-term radon measurement. However, by using Rapidos you still get a very good indication of radon levels. The analyse provided is usually adequate enough to decide whether a radon-lowering measure is required. In contrast to long-term measurement (which is conducted to obtain an annual average value), short-term measurements can be done all year round. In many countries, long-term measurements are only conducted when the heating is on at home or in the workplace, which is normally between October and April.

Why measure radon?

Radon is a radioactive gas that leaks from the ground and in some cases comes from building materials. Depending on the ground beneath the house and the type of building construction, harmful high concentrations of radon can occur. Second to smoking, it is the cause of most lung cancer cases in the world.

Globally, an estimated 230 000 people are affected each year by lung cancer as a result of long-term exposure to radon. Lung cancer is one of the cancers that has the highest mortality, with only 20 percent of those affected surviving five years after the initial diagnosis. Therefore, it is essential to monitor for radon to ensure that it does not exceed the applicable national limit values. Note, limit values vary from country to country. However, if you order a radon measurement from Radonova it is straightforward to check which limit value applies to your country.

Short-term measurement

Take Action on Radon and Radonova Collaborate on 100 Radon Test Kit Challenge

By Measurement, News No Comments

Radonova, the global leader in radon measurement, is proudly partnering with Take Action on Radon to supply Radtrak² radon gas detectors for the 100 Radon Test Kit Challenge.

What is the 100 Radon Test Kit Challenge?

The objective of the campaign is to gather more information about radon concentrations across Canada to increase knowledge and better understand concentration levels. The challenge targets municipalities where radon testing has thus far been limited, but where there is a potential for homes to have elevated radon levels. With the support of Health Canada, the project has already met it’s 2019 goal of singing up 15 communities. The program provides 100 test kits to each participating municipality, to be distributed to citizens for free or for a nominal fee. Each community needs to have a Community Liaison to take on this project to provide local support. Sign up here if you’re interested in becoming a community champion and joining the challenge for 2019-2020 fall and winter season.

Developing awareness about radon

“Many Canadians still don’t know that radon is the leading cause of lung cancer in non-smokers,” says Pam Warkentin, Executive Director of the Canadian Association of Radon Scientists and Technologists (CARST), and Project Manager for Take Action on Radon. “Reducing radon exposure saves lives, and the 100 Test Kit Challenge is a great way for a community to come together and address this risk.”

Radon is a colourless, odourless, radioactive gas created by the natural decay of uranium in the soil. A measurable amount of radon is found in every building, but exposure to high amounts over a long period of time presents a risk of lung cancer. Radon is the primary cause of lung cancer in non-smokers – Health Canada estimates that about 16% of lung cancer deaths are related to exposure to radon in the home. However, all homes can be tested for radon and radon levels can be reduced if they are found to be high.

Long term testing

Radtrak² is Radonova’s long-term radon gas detector which measures homes and workplaces for radon gas over a sustained period. As radon levels fluctuate from day to day, the long term test method captures radon concentrations over time to provide a better, more accurate and representative average radon gas level. Long term radon testing is also recommended by Health Canada.

Bill Rounds, President of Radonova, said: “The 100 Test Kit Challenge is an excellent example of a project that engages communities to participate and encourage radon testing, and raise much needed public awareness of the dangers of radon exposure in those areas of Canada where testing has been limited. Do not underestimate radon, it is a global health problem that is estimated to cause 230,000 cases of lung cancer each year¹. Living with high levels of radon is an unnecessary health risk. Elevated radon levels in the home can easily be reduced, but first you have to test.”

Who is Take Action on Radon?

Take Action on Radon is a national initiative which brings together radon stakeholders and raises awareness of radon across Canada. The current advisory team is made up of the Canadian Association of Radon Scientists and Technologists (CARST), CAREX Canada, and the Canadian Cancer Society. The success of this initiative hinges on the participation and dedication of hundreds of radon stakeholders coast to coast – from radon professionals and community champions to radon researchers, public health officials, and programs at the municipal, provincial, and federal levels.

Radonova is the laboratory of choice for numerous government radon surveys, as well as other public and private sector large scale measurement contracts around the world. A truly global laboratory, Radonova is active in over 50 countries and has performed millions of measurements.

For more information on radon and radon measurement click here.
For more information, please contact Bill Rounds, President of Radonova
Phone: +1.331.814.2201, E-mail: bill.rounds@radonova.com

¹ Environmental Health Perspectives, 31 May 2018, https://ehp.niehs.nih.gov/doi/10.1289/EHP2503.

take action on radon

New calculator simplifies radon measurement in the workplace

By Measurement, Workplace No Comments

To coincide with the start of the radon measurement season, Radonova has launched a web application that makes it easier to calculate how many radon detectors are required to measure radon in the workplace.

Due to national radiation protection laws which were introduced across Europe in 2018, there is now a legal requirement to measure radon levels in workplaces. The laws are based on the EU Directive 2013/59/Euratom which lays down basic safety standards for protection against the dangers arising from exposure to radiation. Therefore, employers are now responsible for controlling radon levels in workplaces, and if necessary, taking measures to lower them.

Inspired by home calculator

To meet the demand for workplace measurements, Radonova has developed a user-friendly online solution that quickly calculates how many radon detectors are needed to make a correct measurement.

”The first web application we developed calculated how many radon detectors were needed to measure radon in apartment buildings. It was a huge success which saved time and simplified the process for us and our customers. Therefore, it was logical to develop and offer a similar solution for measuring workplace environments, ”comments Karl Nilsson, CEO of Radonova Laboratories.

Workplace quality standards for radon measurement

Measurement quality standards and protocols are in place to determine how many radon detectors should be used and where they should be located. It is important to be aware that these standards vary from country to country. However, many standards and protocols are currently being reviewed as a result of the EU directive. Pending completion of various national audits, Radonova has chosen to base its calculator on the quality standards defined by the International Radon Measurement Association (IRMA). It is an established and respected standard and ensures that measurement methodologies deployed by Radonova meet both current and future international guidelines.

Get it right from the outset

Radonova’s technical director Tryggve Rönnqvist has actively participated in the development of IRMA’s standards and procedures. As Radonova is a global organisation, it has insight into the different protocols that are deployed across the world:

”Our experience is that customers don´t want to go back and forth, but would rather all appropriate measurements are carried out at the same time. Therefore, our advice is to make sure you use the correct number of radon detectors to detect problems to ensure you get the right insight if elevated values are detected. Given that we now have statistics which show that 20 percent of Swedish workplaces have elevated annual radon values, it´s even more important to follow a standard that provides the most accurate radon measurement. If you follow IRMA’s protocols, you are guaranteed to meet national requirements, regardless of country. This is why we have chosen to develop the calculator based on IRMA’s guidelines.”

The new calculator is available as a web application on Radonova’s web site.

New calculator simplifies radon measurement in the workplace

Canon Business Center Conducts Reliable and Effective Radon Measurement in the Workplace

By Measurement, Workplace No Comments

In order to comply with the EU’s new Radiation Protection Directive, a new Radiation Protection Act came into force in 2018. This means that for the first time, the issue of exposure and measurement of radon in both workplaces and homes is included in different European countries Radiation Protection Acts.

We met Canon’s sales manager Mats Sonesson at their Uppsala office in Sweden. Here, Mats tells us what they did to comply with the new law to ensure employees were working in a radon-safe environment.

How did you approach the issue of carrying out radon measurement in your office?
We wanted to know that the office we rent is okay and that our employees are not exposed to radon levels which are above national guidelines. As an employer, we are legally responsible to ensure our employees are not exposed to any health risks in the workplace. Understanding and controlling radon levels is a key element of that.

What was your experience of conducting an accredited radon measurement?
It was surprisingly easy. The first few days our employees wondered what the radon detectors were for, but after that they just blended into the office to the extent that we almost forgot to send them back for analysis! Registering information on Radonova’s website was straightforward and we received clear instructions on where the detectors should be placed. We fixed the detectors with zip-ties to make sure they weren’t damaged when our office was cleaned.

Have you been able to use the radon measurement you conducted in terms of your wider environmental responsibilities?
Yes, we are sending the report from the radon survey to our central office as it is something that illustrates how we are reducing our environmental impact and meeting environmental legal requirements in line with ISO 14001.

Why did you choose Radonova as your supplier?
As we are accredited according to ISO 14001, it was sensible to order the radon measurement from Radonova as the company is accredited according to ISO 17025, 14001 and 9001. Radonova’s website assures quality at a cost-effective price and in general the site is easy to navigate and order from.

Finally, do you have any advice to employers who have not yet measured radon in their workplace?
Considering how easy it is, and the fact that the law now requires measurement, the question is really why shouldn’t you do it? The measurement process is so straightforward. If the measurement would have indicated that a workplace has radon levels which are above legal levels, a significant health risk would have been identified. In that respect, it is comforting to be aware that any radon issue is being addressed and managed. In our case, the measured radon content was below the reference level.

Canon Business Center Conducts Reliable and Effective Radon Measurement in the Workplace

Radonova and Durridge partnership brings RAD7 radon and thoron detector closer to European customers

By Measurement, News No Comments

Radonova Laboratories and Durridge have signed a reseller agreement where Radonova will make the Durridge RAD7 radon and thoron detector available to the European market. So far over 5 000 units of RAD7 have been sold in six continents and the instrument has become a standard in the global scientific community, including mentions in over 2 500 research papers.

Carlos Bielicki, Chief Commercial Officer at Durridge, said: “The partnership with Radonova is a key part of our global strategy and we are confident that Radonova’s excellent reputation, knowledge and sales team will significantly increase Durridge’s exposure on the European market. Customers that need a radon and thoron instrument for any application can rest assured that the RAD7 delivers unparalleled measurement performance at a cost-effective price.”

Karl Nilsson, CEO at Radonova Laboratories, said: “Durridge RAD7 is an excellent complement to our own radon sniffer ATMOS. RAD7 is built on a different technology and makes it possible to detect both thoron and radon gas. From that aspect and based on RAD7´s track record this is a very important agreement which makes our portfolio of instruments even stronger.”

Dag Sedin, Senior Advisor at Radonova Laboratories, comments: “The capacity to measure both thoron and radon gas is especially important in some applications. Thoron gas has a half-life of one minute where RAD7 allows measurements detecting if the source has direct contact with the earth air which many times is the source of radon as well. My experience is that RAD7 is a very reliable and useful instrument. For instance, it is a very effective tool when measuring radon levels where ventilation varies over time. The instrument also comes with a number of accessories for measurement in water and soil.”

The RAD7 is used in a variety of applications in North America, a prevalent use is for geologists to measure radon as an environmental tracer for groundwater-surface water interactions. For these projects, RAD7 is used together with RAD H2O or RAD AQUA, both accessories for measuring radon in water.

For more information, please contact:

Karl Nilsson, CEO, Radonova Laboratories Phone: +46 (0)70-639 01 31, E-mail: karl.nilsson@radonova.com

Carlos Bielicki, Chief Commercial Officer, Durridge Phone: +1 978 239 0325, E-mail: carlos@durridge.com

Radonova and Durridge partnership RAD7