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Tags
EMI, LDA, Edifício Estoril Office, Av. República 3000A, Esc. 19A, 2649-517 Alcabideche PORTUGAL
EMI LDA offers the gas detection systems for early detection and prevention of Gas Detection. Measurement and detection of combustible and refrigerant gases.
Subcategories
Carbon dioxide measurement is required in many applications from building automation and greenhouses to life science and safety.
CARBON DIOXIDE AND SAFETY
Carbon dioxide is a non-toxic and non-flammable gas. However, exposure to elevated concentrations can induce a risk to life. Whenever CO2 gas or dry ice is used, produced, shipped, or stored, CO2 concentration can rise to dangerously high levels. Because CO2 is odorless and colorless, leakages are impossible to detect, meaning proper sensors are needed to help ensure the safety of personnel.
Effect of Different Levels of CO2
Concentration | Effect |
350 to 450 ppm | Typical atmospheric concentration |
600 to 800 ppm | Acceptable indoor air quality |
1,000 ppm | Tolerable indoor air quality |
5,000 ppm | Average exposure limit over 8-hour period |
6,000 to 30,000 ppm | Concern, short exposure only |
3 to 8% | Increased respiration rate, headache |
> 10% | Nausea, vomiting, unconsciousness |
> 20% | Rapid unconsciousness, death |
Description
Health exposure limits (Directive 2000/39/EC):
A colorless gas, highly soluble in water, with a characteristic pungent smell. Ammonia is a large-scale production of the chemical industry widely used as a raw material for the production of fertilizers and explosives,as a refrigerant,as a cleaning and antimicrobial agent. Ammonia is also produced naturally from the decomposition of organic matter, including plants and animals.
Description
Colorless, odorless and tasteless gas that is toxic to humans in concentrations above about 35 ppm. Lighter than air.
Health exposure limits (Directive 2000/39/EC):
Carbon monoxide (CO) has anthropogenic origins in the incomplete combustion of fossil fuels or other carbon-containing organic matter. It arises in emissions from electricity production, industrial, commercial or residential combustion and also from transport with combustion engines. It can also have natural origins in volcanic eruptions and forest fires.
In urban areas, road transport is the main source of CO and as such the concentrations of this pollutant vary with traffic variations. Furthermore, this pollutant is emitted in greater quantities when engines are at high speed, that is, when stopping and starting or at low speeds.
CO can cause headache, dizziness and malaise even nausea and vomiting, it can even reduce the ability to learn, work and manual dexterity. The harmful effects on human health are due to its ability to irreversibly combine with blood hemoglobin which, instead of binding to oxygen in the lungs to transport it to tissues and carbon dioxide to transport it from tissues to lung tissues, this function is compromised by the occupation of the hemoglobin position by CO, which creates a very stable composition. With long exposure times it can even cause death.
CO contributes to the formation of tropospheric ozone and its oxidation by oxygen in the air contributes to the greenhouse effect.
Description
A colorless gas, one of the main components of the air.Oxygen is necessary for the breathing of humans and animals, oxygen deficiency is harmful to health.
Oxygen: Oxidizing Gas for Life Support and Performance Optimization Applications
Oxygen is a colorless, odorless and highly reactive diatomic gas, constituting one of the main components of the Earth's atmosphere, with an approximate concentration of 21%. It is the most abundant chemical element in the Earth's crust, predominantly present in the form of oxides, silicates and carbonates.
In addition to its fundamental role as a breathing gas in medical and life support environments, oxygen has significant oxidizing properties that are exploited in multiple industrial sectors. Its use, in oxygen enrichment processes or partial replacement of atmospheric air, results in substantial gains in efficiency, allowing the optimization of chemical and biological processes, as well as improving performance and reducing the carbon footprint, when compared to sources alternative energy sources.
The main industrial applications of oxygen include combustion and oxidation processes, biological fermentation, wastewater treatment, and aquaculture systems. In the metallurgical industry, oxygen is widely used in combination with gases such as acetylene (C₂H₂), other fuels or with argon (Ar) and carbon dioxide (CO₂) for metal cutting and welding operations, brazing, scarifying, thermal hardening, cleaning and casting. In the food sector, oxygen is used to preserve the color and freshness of perishable products, such as meat, by maintaining a controlled gaseous environment.
Radon
Radon is a naturally occurring radioactive gas that is colorless and odorless. Its presence in the environment is common, both outdoors and indoors. However, prolonged exposure to radon inside buildings poses a significant risk to public health.
Inhalation of radon is the primary source of ionizing radiation exposure for the general population, contributing over 40% to the annual effective dose of radiation received. The percentage of the annual dose received by the global population can be found in the report "Sources and Effects of Ionizing Radiation, UNSCEAR 2008 Report, Vol. I."
Exposure and Health Effects
Prolonged exposure to radon indoors is one of the leading causes of lung cancer. Smokers and ex-smokers are at an increased risk due to the combined action of tobacco and radon. There is no consistent evidence linking radon exposure to other types of cancer or diseases.
Radon produces radioactive particles in the air we breathe. These particles become trapped in our respiratory pathways, where they emit radiation, causing damage to the lungs. This damage increases the risk of lung cancer with prolonged exposure over time.
According to the World Health Organization (WHO), it is estimated that radon exposure causes between 3% and 14% of lung cancer cases globally. In Europe, it is estimated that 9% of lung cancer deaths are attributed to radon exposure, representing about 2% of all cancer-related deaths.
Radon is present everywhere, both outdoors and indoors in buildings. All buildings contain radon, and in most cases, the concentrations are low.
In Portugal, certain areas of the country are more prone to higher levels of radon in buildings. These areas can be consulted on the radon susceptibility map. The map, produced from a national survey and the national radon monitoring campaign, indicates the level of susceptibility to radon indoors. However, the only way to know the exact radon concentration is by direct measurement.
Radon Presence and Monitoring
Although radon is present both outdoors and indoors in buildings, its concentration can vary significantly. Most buildings have low concentrations, but there are specific geographic areas where radon levels may be higher.
The only way to determine the exact radon concentration in a building is through direct measurements.
Mitigation of Radon Exposure
Reducing exposure to radon indoors can be achieved through preventive measures implemented during the construction phase of new buildings or through corrective or remediation measures in existing buildings.
Marca: Aranet Who breathes good air is healthier, happier and can do more. Headaches, dizziness and permanent fatigue are often due to a high concentration of CO₂ in the air. Aranet4 monitor helps you monitor how stale and contaminated the air is in indoor spaces where many people are present such as in schools, offices and public buildings.
Marca: TFA Dostmann Who breathes good air is healthier, happier and can do more. Headaches, dizziness and permanent fatigue are often due to a high concentration of CO₂ in the air. TFA's AIRCO2NTROL COACH CO2 monitor helps you monitor how stale and contaminated the air is in indoor spaces where many people are present such as in schools, offices and...
Brand: GreisingerResidual oxygen measuring system (for gases with elevated CO2 percentage GOEL 370). The resOx 5695-H meter indicates residual oxygen over the range of 0.0 to 100.0 O2 or displayed in mmHg O2. These ready-to-use residual oxygen measuring systems with included gas pump ideal for the quality control of MAP food packaging and comparable...
Brand: Dostmann ElectronicThe AirControl 5000 CO2 instrument with data logger features an easy to read, LCD display. Indicates CO2 over the range of 0 to 5000 ppm. Indicates the temperature, humidity and CO-concentration.
Brand: SensecaThe precise oxygen GMH3692 features an easy to read, LCD display. Indicates oxygen over the range of 0.0 to 100.0% O2 and an accuracy of ±0.1% ±1 digit.
Brand: Elitech The chemical composition of the atmosphere is constantly changing due to the large amount of pollutants released every day. Inhalable particles are one of the most serious air pollutants in terms of public health. The M2000 Air Quality Analyzer measures PM2.5, PM10, Particles, CO2, HCHO, Temperature and Humidity.
Brand: SensecaHigh quality CO measuring device, for measuring carbon monoxide concentration up to 1000 ppm (0,1 Vol %) in the ambient air. Via freely adjustable alarm function, the instrument caution the user both optically and acoustically against a dangerous gas concentration. The gas concentration will be measured at the frontal sensor opening.
Brand: Extech Measures CO2, Temperature and Humidity The EA80 checks for Carbon Dioxide concentrations using a maintenance-free dual wave NDIR (non-dispersive infrared) CO2 sensor with a range of 0 to 6,000 PPM.
Brand: Extech The Extech CO100 is a desktop indoor air quality CO₂ monitor that measures carbon dioxide concentrations (CO₂) from 0 to 9999 ppm, air temperature and humidity.
Brand: Extech Carbon Monoxide Meter with Adjustable CO Warning Level and Backlit Display. Check CO levels up to 999ppm with the push of a button using Model CO15. An audible alarm indicator will continuously beep starting at 25ppm (preset warning level, value can be adjusted) and the display will flash until the CO level goes down to normal range.
Brand: Extech The Extech CO260 monitors indoor air quality for Carbon Monoxide (CO) and Carbon Dioxide (CO₂) levels. In high concentrations these gases can affect the health and well-being of people and pets. Monitor CO₂ levels in schools, office buildings, greenhouses, factories, hotels, hospitals, transportation lines and anywhere that high levels of...
Brand: Extech Faster response measurements to 1000ppm Checking co levels is as easy as pushing just 1 button on the model C0 10, which measures up to 1,000 ppm. An audible indicator increases in tone starting at 35 ppm. The higher the concentration of CO, the faster the alarm will sound. Above 200 ppm, the alarm will sound continsly
Brand: DostmannDatalogger for measuring with internal temperature, humidity and atmospheric pressure sensors. External sensors available for measuring CO2, temperature, humidity and barometric pressure. Includes motion sensor. Integrated USB interface for connection to PC for automatic PDF creation, includes support for wall mounting.
Brand: Dostmann Electronic External combination probe for LOG220 E with CO2, temperature, humidtiy and barometric pressue, 1,8m cable
Marca: Aranet Who breathes good air is healthier, happier and can do more. Headaches, dizziness and permanent fatigue are often due to a high concentration of CO₂ in the air. Aranet4 PRO monitor helps you monitor how stale and contaminated the air is in indoor spaces where many people are present such as in schools, offices and public buildings.
Marca: Extech This Portable Indoor Air Quality CO2 Meter measures Carbon Dioxide (C02), Temperature, Humidity, Dew Point, and Wet Bulb. Checks for Carbon Dioxide (CO2) concentrations and calculates statistical weighted averages of TWA (8 hour time weighted average) and STEL (15 minute short term exposure limit).
Brand: Lascar Electronic EL-WEM continuously monitors indoor air quality, includes a colored status ring to display the IAQ level at a glance. EL-WEM automatically sends the data to the EasyLog Cloud, allowing to analyze the measurement of PM2.5 and PM10 particles, volatile organic compounds (VOC), temperature, humidity and pressure.
Marca: Senseca Air quality meter CO2 monitoring for professions subject to greater CO2 exposure. With the built-in CO2 dosimeter it indicates the TWA average of 8 hours or 15 minutes (STEL). The equipment is portable and includes a clip to attach to the belt. The battery has a battery life of up to 24 hours!
Marca: Senseca Air quality meter CO2 monitoring for professions subject to greater CO2 exposure. With the built-in CO2 dosimeter it indicates the TWA average of 8 hours or 15 minutes (STEL). The equipment is portable and includes a clip to attach to the belt. The battery has a battery life of up to 24 hours!
Brand: Evikon The E2608-NH3-E gas detector-transmitters with excellent repeatability, stability and long service life. The E2608 provides two independent analog outputs OUT1 and OUT2, user selectable to 4-20 mA or 0-10 V. RS485 Modbus RTU digital communication interface included allows easy instrument configuration and integration into various automation...