PM2.5 Articles
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Elevated PM10 concentrations and high PM2.5/PM10 ratio in the Brussels Urban area during the 2006 car-free Sunday
The results of the Car-Free Sundays in Brussels demonstrate the close relationship between the traffic and the presence of the gaseous pollutants such as NO, NO2, CO, CO2 and O3 in a traffic environment. The relationship with PM10 and PM2.5 seems to be much more complex. In fact, the PM10 and PM2.5 concentrations on the Car-Free Sunday 2006 were amongst the highest that year and they were three ...
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Particulate matter and particle-bound polycyclic aromatic hydrocarbons in the Dapu road tunnel in Shanghai
Airborne Particulate Matter (PM) was collected in a cross-river road tunnel using portable air samplers and a cascade impactor. Sixteen EPA priority Polycyclic Aromatic Hydrocarbons (PAH) in the PM were quantified by gas chromatography/mass spectrometry. Profiles and diagnostic ratios of PAHs were investigated, and size distribution of PM mass and PAHs were discussed. High concentrations of PM2.5 ...
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Effectiveness, Suitability, and Performance Testing of the SKC® Deployable Particulate Sampler (DPS) As Compared to the Currently Deployed AirmetricsT
Epidemiological studies have linked particulate matter (PM) exposure to morbidity and mortality from cardiovascular and respiratory disease. In order to monitor and assess the potential PM health risk to deployed military personnel, the U.S. Army must field a portable sampler that can accurately sample particles with an aerodynamic diameter less than or equal to a nominal 2.5 mm (PM2.5). In the ...
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MCERTS for Praxis/Urban Air Quality Monitor
South Coast Science’s Praxis/Urban has now been awarded MCERTS for indicative measurement of dust in ambient air (PM2.5 and PM10). You can see the list of certified devices on the CSA website here, you can also view our certificate which includes notes on the product and its usage. The certification process is also underway for the Praxis/Cube and it’s anticipated that full MCERTS ...
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MCERTS: Praxis/Urban passes PM2.5 & PM10 testing
The Praxis/Urban has now passed all MCERTS tests in line with the certification for Indicative Ambient Particulate Monitors standard and it is anticipated the Praxis/OPCube will follow shortly. This has been achieved after three years of collocation projects with reference instruments around the world, in order to collect training data for the development of the company’s unique sensor ...
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Ultrafine Particles Overview: What are they and Where do they come from?
What are ultrafine particles and why is it an emerging concern? Ultrafine particles (UFPs) belong to a class of primary air pollutants called particulate matter (PM). Other types of PM include coarse particulate matter (PM10) and fine particulate matter (PM2.5). With a diameter of 0.1 micron or less, UFPs are the smallest known particles of ...
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If air pollution was a physics problem
According to a recent report from the World Health Organization (WHO), air pollution is the biggest environmental cause of death [1]. Solving environmental problems is always complex including political and socioeconomic factors, but let’s approach this problem like we learned to tackle physics problems in school: Read the problem carefully through. Draw a picture of the situation. ...
By Airmodus Oy
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Urban air quality monitoring at Kars, Turkey - Case Study
Overview Kars Smart City monitored the urban air quality and environmental health by installing Oizom Polludrone – Online Pollution Monitoring System. In addition to Air Quality monitoring, the Polludrone also monitored the city’s urban weather conditions like temperature and humidity. The real-time data was dispersed to the mass audience through visual messaging ...
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GrayWolfLive® 3.0 Cloud Platform
GrayWolf introduces a greatly enhanced version of its versatile cloud-based web application. Access real-time and logged data from any of our Wi-Fi enabled AdvancedSense® meters, WolfPack® monitors or WolfSense® LAP tablet-based kits. In addition, our cutting-edge DirectSense® II probes will soon offer an optional, installed WiFi card allowing for direct communication to most ...
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TVOC Monitoring
Total Volatile Organic Compounds (TVOC) are a group of compounds containing carbon that have a high vapor pressure present in the air. There are abundant VOC emitted from everyday activities among which some are colourless and some odourless and some are toxic. Therefore, TVOC monitoring is an efficient way to detect exposure to toxic VOCs. This article covers information on total volatile ...
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Custom Engineering and Design Capability
ANSI N13.1-2011 stack sampling location qualification testing ANSI N13.1 stack sampling system design Custom air sampler design Integration of radiation detectors and air sampling systems ANSI N13.1-2011 Design Considerations ANSI N13.1-2011 requires that sampling systems satisfy the following design criteria; (1) representative particles from the stack flow must be drawn into the ...
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Surat Smart City Air Quality Monitoring - Case Study
Overview Surat Municipal Corporation wanted to monitor the city’s environmental condition as part of their smart city mission. With the help of Oizom’s Polludrone, they were able to observe the city’s health in real-time. The collected data was also showcased through web widgets in the city’s official website. ...
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First Quantum Minerals Improves Operational Compliance with Clarity - Case Study
In this case study, you’ll learn how Kansanshi Mine improved its compliance monitoring, reduced operational overhead and increased reliability by deploying its first network of Clarity Node-S devices. In this case study, you’ll learn how Kansanshi Mine improved its compliance monitoring, reduced operational overhead and increased reliability by deploying its first network of Clarity ...
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Construction site monitoring with Cambrian Engineering Corporation, Singapore - Case Study
Cambrian Engineering Corporation Pte. Ltd. is an established company in Singapore. They specialize in geotechnical engineering, geophysical surveys, ground-penetrating radar survey, utility survey, trial trenching, and specialist applications. Meanwhile, Cambrian Engineering Corporation’s client is Chan & Chan Engineering Pte. Ltd. (CCE). They are a civil engineering and building ...
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Inside the Particulate Monitor – Filter Samplers
Some time ago, OPSIS published descriptions on how some well-established types of gas analysers work, namely those based on spectrometers, interferometers, and tuneable diode lasers. They all utilize absorption of light to determine the concentrations of gaseous pollutants such as nitrogen oxides (NOX), sulfur dioxide (SO2), hydrogen chloride (HCl), ammonia (NH3), and many more. The same ...
By OPSIS AB
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Cytiva - Whatman™ glass fiber (GF) tape improves data collection in continuous air monitoring
Find out why using glass fiber filter tape can support reliable measurement of particulate matter in continuous air monitoring research, offering increased efficiency and consistency during data collection and analysis. From companies needing to regulate the number of particulates released from their plants, to government agencies such as the US Environmental Protection Agency (EPA) studying ...
By Cytiva
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Managing dust risks at quarries
In the following article, Josh Thomas from instrumentation specialist Ashtead Technology, discusses the risks associated with dust at quarries, and highlights the vital role of monitoring. Background Almost all quarrying operations have the potential to create dust. Control measures should therefore be established to prevent the generation of levels that cause harm. These measures should be ...
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Dust monitoring – PM100
What is PM100? “PM” (Particulate Matter) is not a single pollutant but refers to a complex mixture of solids and aerosols of varying shape, size, and chemical composition. It may contain many chemical species like organic compounds, inorganic ios, metallic compounds, elementary carbon, etc. These atmospheric particles are definable by their diameter for air quality regulatory ...
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SO2 Monitoring
SO2 monitoring is an efficient way to detect and reduce exposure to sulfur oxides which further benefits in reducing the formation of particulate sulfur pollutants like fine sulfate particles, acid rain, and smog. This article covers information on sulfur oxides, their sources, permissible levels in the ambient air, health and environmental impact, possible corrective measures, the need for ...
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Ozone Monitoring
Ground-level ozone is harmful to human health and the environment, especially on sunny days when its concentration can reach high levels. Also, it is a precursor of photochemical smog, which has its fatal effects. Real-time O3 monitoring helps in calculating the air quality index to deliver health advisories as well as formulating an action plan to meet standards. This article covers information ...
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