air monitoring Articles
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Is the Rotameter Ready for Retirement in Air Sampling/Monitoring Applications?
The variable area rotameter has been the primary tool utilized for determination of flowrates passing through the air circuitry pathway of air sampling or air monitoring systems for many years. In air sampling applications a pollutant is captured on a collection medium (filter paper, charcoal cartridge, etc.) and taken to a laboratory for determination of the quantity of pollutant on the ...
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Advantages & Disadvantages of Ozone Transfer Standards
Calibrating ambient air monitors is vital for getting pollution monitoring right. Ambient air monitors can provide critical data about the health of our immediate atmosphere and what needs to change to improve air quality. Ozone transfer standards are a vital part of that process, ensuring air quality analyzers are calibrated and working effectively. To understand more about them, this post will ...
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The Need to Clearly State the Reference Temperature and Pressure Conditions when Reporting Gas Volumes or Volumetric Flow Rates
In the physical sciences, such as chemistry, the standard temperature and pressure (STP) is a set of conditions for experimental measurements that enables true comparisons between sets of da-ta representing gas volumes. There are many different definitions of standard temperatures and pressures applicable to gas volumes and volumetric flow rates. The differences depend on the organization ...
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4 Ways of Ambient Air Quality Monitoring Systems and Equipments
Real-time Ambient Air Quality Monitoring Applications Oizom specializes in manufacturing and designing accurate Air Quality Monitoring systems and offering advanced data analytics. Founded in 2015, Oizom is currently present in more than 40 countries, providing air pollution measuring systems. Oizom technology has gained the trust and confidence of air quality experts across the globe. With more ...
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Basic Difference Between AAQMS and CAAQMS
Air, being an invisible and dynamic medium, it is difficult to know if the air quality of a region is as per the air quality standards. It is imperative to monitor the air quality frequently to assess the pollution level in accordance with the National Air Quality Standards set under the Air (Prevention and Control of Pollution) Act, 1981. Air monitoring is done to measure the pollution level of ...
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National Ambient Air Quality Standards (NAAQS) Reconsideration
The Environmental Protection Agency (EPA) released a reconsideration of the National Ambient Air Quality Standards (NAAQS), proposing a revision to lower the annual standard for particulate matter with an aerodynamic diameter of 2.5 microns or less (PM2.5). The EPA proposed to retain existing 24-hour PM 2.5 and PM 10 standards but is accepting comments on lowering the 24-hour PM 2.5 standard in ...
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News on Air 2013, Volume 1: Products for Sampling
For decades, Sigma-Aldrich has been a key supplier of innovative & high technology air monitoring products for various areas of gas/air sampling. Enclosed, you will find an overview on new and interesting devices to improve or simplify your air sampling. Supelco and Sigma-Aldrich offer a range of active and passive air sampling products, in addition to various analytical chemistry tools ...
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Smart Air Sampling Instruments Have The Ability To Improve The Accuracy Of Air Monitoring Data Comparisons Among Nuclear Industry Facilities
Introduction Valid inter-comparisons of operating performance parameters among all members of the nuclear industry are essential for the implementation of continuous improvement and for obtaining credibility among regulators and the general public. It is imperative that the comparison of performances among different industry facilities be as accurate as possible and normalized to ...
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Sample collection and analysis of carbonyls - Improve detection of trace level contaminants in air
Improve Sampling and Detection of Carbonyls in Air Leverage a Wide Range of Samplers and Accessories Achieve sensitive and reliable results with air sampling media for a wide range of applications in various configurations for solvent desorption, thermal desorption, passive and whole air sampling from Supelco. Ensure low background for carbonyl sampling with products that are produced to the ...
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Air pollution overtakes AIDS related deaths
Research findings show that annual PM2.5 concentrations in some African cities are as much as 5 times over the WHO limit for health-harmful concentration. Findings like these place air pollution as the leading cause of premature death in Africa, overtaking AIDs related deaths. The research is highlighted by the Columbia Earth Institute The studies were carried out in 2018/19 in Kinshasa, ...
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Clean Air Month: Takeaways from our Air Quality Monitoring & Air Quality 101 Webinar
TL;DR — The month of November is recognized as Clean Air Month in the Philippines, and to celebrate we’ve launched our Clean Air Month webinar series in conjunction with the Environmental Management Bureau (EMB) of the Department of Environment and Natural Resources (DENR). In the first installment, we tackled Air Quality Monitoring and Air Quality 101 where we discuss air pollution ...
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Hexavalent Chromium Increases Workers’ Risk of Cancer
Where is Hexavalent Chromium Found? Hexavalent Chromium (also known as Chrome 6, Chrome VI, or hex chrome) is a component of a variety of metal products. It is most often found in stainless steel where it greatly reduces corrosion. Hex chrome is also found in some steel alloys because of its ability to increase flexibility and reduce corrosion. Electroplating of chrome also can form Hexavalent ...
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Why Air Quality Monitoring Matters
Air pollution causes premature deaths and has significant consequences on the global economy. This has been presented in several reports recently. Air pollution has emerged as the fourth-leading risk factor for deaths worldwide. The World Bank states that 1 in 10 deaths worldwide is caused by air pollution exposure. In the report The Cost of Air Pollution: Strengthening the Economic Case for ...
By OPSIS AB
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Teledyne Scientific Instruments - Direct Sampling MS and MS/MS for Real Time Air Monitoring
Presented at the 44th ASMS Conference on Mass Spectrometry, May 12-16, 1996 Portland, OR. Published in the Proceedings of the 44th ASMS Conference on Mass Spectrometry May 12-16, 1996 Portland, OR, in press. DIRECT SAMPLING MS AND MS/MS FOR REAL TIME AIR MONITORING C. Remigi, P.T. Palmer, Dept. of Chemistry & Biochemistry, SF State University, SF, CA D. Karr, Teledyne Scientific ...
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Methodology for developing an air quality index (AQI) for Tunisia
Air quality index (AQI) is a quantitative tool through which air pollution data can be reported, providing information on how clean or polluted the air is. Several countries employ some type of air quality index to communicate the quality of their air. Some of these systems rely on relating measured (monitored) or predicted concentrations of air pollutants (results of modelling system). In this ...
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Case study - N°AA2 – Ambiant air monitoring – WWP TRSMEDOR deodorisation
Context & Challenges Globally, the wastewater treatment is the first public health issue. Urban development leads to urbanization near waste water treatment plant and extension of sewerage network. These aspects induce to an augmentation of sulfur compounds (H2S, mercaptans and sulfides) which are very corrosive, odorant and toxic. To monitor this compounds online CHROMATOTEC® offers ...
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Environmental benchmarks vs. ecological benchmarks for assessment and monitoring in Canada: Is there a difference?
Environmental benchmarks are widely used in Canadian environmental assessment as a standard against which to monitor air or water quality in response to human activities in the environment. Recent work in Canada has developed the concept of ecological benchmarks as a complement to environmental benchmarks. However, implementation of ecological benchmarks may be challenging. This paper presents an ...
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An ambient air quality monitoring network for Buenos Aires city
This paper proposes an objective methodology for designing a multi-pollutant urban air-quality monitoring network to detect concentrations greater than reference concentration levels (CL). The network design includes both air quality simulation and an objective analysis based on monitoring tasks. The proposed methodology is applied to the city of Buenos Aires. Pollutants of concern are nitrogen ...
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Air pollution and the influence of sources on Paulinia (Brazil) and surroundings
The air quality in the industrial area and surroundings of the city of Paulinia (state of Sao Paulo, Brazil) has been investigated by analysing the concentration of air pollutants (SO2, PM10, NO, NO2, CO and ozone) and identifying the main sources of air pollution. A mobile pollutant monitoring unit was used to collect the data at five different sites from November 2000 to July 2002. Critical ...
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Case study - N°AA4 – Ambiant air monitoring – WWP TRS MEDOR Stripping
Context & Challenges Globally, the wastewater treatment is the first public health issue. Urban development leads to urbanization near waste water treatment plant and extension of sewerage network. These aspects induce to an augmentation of sulfur compounds (H2S, mercaptans and sulfides) which are very corrosive, odorant and toxic. To monitor this compounds online CHROMATOTEC® offers ...
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