ambient air VOC Articles | Environmental XPRT

Developpement of on-line and field dual TD GC – MS for automatic VOC monitoring on petrochemical sites

Significance of the Research: Ambient air is polluted by many VOCs coming from Petrochemical Industry. PAMS, Oxygenated or Halogenated VOCs can be found in many ranges of concentration between background and site fence line. These compounds are precursors of ozone and Industrial bodies need to identify them to be in compliance with the authorized limits and to improve their process. Objectives: ...

Aug. 8, 2018

By Chromatotec Group

Experimental Determination of LOD for VOCs in Ambient Air Measured by Auto-GCs and Comparison with Reference Methods

Abstract Automatic gas chromatograph (auto-GCs) manufacturers perform an experimental method for a simple, rapid, and low-cost detection limit evaluation for volatile organic compounds in ambient air. The principle is the estimation of a minimum area of a peak. It is a relevant area value that discerns a real peak from the ground noise. This experimental limit of detection is equal to the minimum ...

Dec. 13, 2019

By Chromatotec Group

Flavoring & Fragrance Manufacturing Solutions for VOC and Odor Control - Case Study

Volatile Organic Compounds (VOCs) and odors are natural by-products of many chemical manufacturing processes. The manufacturing of powdered and liquid flavorings & fragrances involves production phases where VOCs and odors can escape into the ambient air. Recapture of the VOCs is important in the prevention of air pollution and smog. Smog is formed when VOCs react with nitrogen oxides (NOx) ...

Mar. 2, 2018

By Catalytic Products International (CPI)

Gas Chromatography: MCERTS Certification for Ambient Air Analysis on Benzene and VOCs

Due to environmental issues, the world of gas analysis is evolving very rapidly. Governments set the rules to limit and control the environmental pollution through legislation. Volatile organic compounds (VOCs), often produced by human activities, are amongst the sources of pollution that need to be identified and quantified for safety reasons. Exposure to high concentrations of certain VOCs is ...

Oct. 3, 2013

By Chromatotec Group

Gas Chromatography: MCERTS Certification for Ambient Air Analysis on Benzene and VOCs

Due to environmental issues, the world of gas analysis is evolving very rapidly. Governments set the rules to limit and control the environmental pollution through legislation. Volatile organic compounds (VOCs), often produced by human activities, are amongst the sources of pollution that need to be identified and quantified for safety reasons. Exposure to high concentrations of certain VOCs is ...

Oct. 3, 2013

By Chromatotec Group

Case study : VOC analysis in ambient air by FID dectection - Complete system airmOzone

Ozone concentration has been multiplied by 5 in the last century in the middle latitudes of the northern hemisphere from 10 PPB in 1874 to approximately 50 PPB today. This is an increase of 1.6% per year; the trend is probably higher (2.4% a year) over the last decades. (Chapter 1 of the International Geosphere-Biosphere Program - World Climate Research Program) In order to stop this global ...

Feb. 28, 2017

By Chromatotec Group

Development of on-line and field dual TD-GC-FID/MS for automatic and continuous Volatile Organic Compounds (VOCs) ambient air and odour monitoring

Ambient air is polluted by many Volatile Organic Compounds (VOCs) coming from anthropogenic and natural sources. VOCs from PAMS, TO14 and TO15 lists can be measured in many ranges of concentration, from ng/m3 up to mg/m3 depending on the location of the measurements. Due to the large number of molecules, the complete separation of all compounds is difficult to perform using chromatographic ...

Sep. 10, 2018

By Chromatotec Group

Air Defender: Truck Vapor Recovery and Oxygen Removalmodel : AD1S2 - Case Study #170601

Project Details Location: Marcellus Carbon Capacity: 3300 lbs Processing Rate: 2 trucks / day Electrical Class: C1D1 HP: (2) 2HP Vacuum Pumps Voltage: 480 VAC Year Installed: 2016 Emissions reduced: 25 tons / year Aereon’sAir Defender was installed at a facility that previously vented truck loading operations to atmosphere. This was a source for over 70 lbsof emissions per ...

Oct. 24, 2018

By AEREON

The Ability to Detect From a Distance

Observing this series of photos taken every 30 seconds by OPGAL’s OGI camera (EyeCGas 2.0), shows a significant volatile organic compounds emission (VOCs) event, including methane released into the air. The gas flows through a cold pipe (the black flare structure), and its temperature evens out with the ambient air temperature upon release to the atmosphere. However, since all VOCs emit an ...

Dec. 24, 2019

By EyeCGas -OGI by OPGAL

Did you know: airmoVOC C6C20+?

Chromatotec offers solutions for SVOCs, VOCs and PAHs in ambient air The airmoVOC C6-C20+ auto-GC-FID analyzer is dedicated to the measurement of hydrocarbons from C6 to more than C25 (linear alcanes) in the range of low ppt (ng/m3). Volatile PAHs measured in standard are : naphthalene, 2-methyl-naphtalene, 1-methyl-naphtalene, acenaphthene, acenaphthylene, fluorene, phenanthrene and ...

Feb. 3, 2021

By Chromatotec Group

Development of on-line and field dual TD-GC-FID/MS for automatic and continuous ambient air monitoring

Ambient air is polluted by many Volatile Organic Compounds (VOCs) coming from anthropogenic and natural sources. VOCs from PAMS, T014 and T015 lists can be measured in many ranges of concentration, from ng/m3 up to mg/m3 depending on the location of the measurements. Due to the large number of molecules, the complete separation of all compounds is difficult to perform using chromatographic ...

Oct. 5, 2017

By Chromatotec Group

Vertical and Diurnal characterization of volatile organic compounds in ambient air in Urban areas

More than half of the world’s population lives in cities, and their populations are rapidly increasing. Information on vertical and diurnal characterizations of volatile organic compounds (VOCs) in urban areas with heavy ambient air pollution can help further understand the impact of ambient VOCs on the local urban environment. This study characterized vertical and diurnal variations in ...

Jun. 29, 2011

By Air & Waste Management Association (A&WMA)

Development of on-line and field dual TD-GC-FID/MS for automatic and continuous ambient air monitoring

Ambient air is polluted by many Volatile Organic Compounds (VOCs) coming from anthropogenic and natural sources. VOCs from PAMS, TO14 and TO15 lists can be measured in many ranges of concentration, from ng/m3 up to mg/m3 depending on the location of the measurements. Due to the large number of molecules, the complete separation of all compounds is difficult to perform using chromatographic ...

Mar. 8, 2017

By Chromatotec Group

Gas Chromatography: MCERTS Certification for Ambient Air Analysis on Benzene and VOCs

Due to environmental issues, the world of gas analysis is evolving very rapidly.Governments set the rules to limit and control the environmental pollution through legislation.Volatile organic compounds (VOCs),often produced by human activities, are amongst the sources of pollution that need to be identified and quantified for safety reasons. Exposure to high concentrations of certain VOCs is ...

Apr. 18, 2019

By Chromatotec Group