Showing results for: NO/NO2 analyzer Articles
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Monitoring pollution in remote regions of Africa case study
Customer: The South African Weather Service (SAWS) Ecotech’s Distributor: SI Analytics (Pty) Ltd Application: Ambient Air Monitoring in Karoo and Waterberg regions of South Africa Background: Carbon Monoxide and Sulfur Dioxide are among the major pollutants found in cities around the world. Local governments and councils frequently monitor air quality in remote locations with minimal ...
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Statistical analysis of urban air-pollution data in the Athens basin area, Greece
Air pollutant concentrations recorded in the Athens basin area by a network of stations are analysed and examined to estimate the typical behaviour of the air pollutants, especially with regard to daily, weekly and annual periodicities and meteorological dependencies. Also, an attempt is made to predict daily and monthly concentrations by utilising a statistically based model, that is, a multiple ...
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BLUE LIGHT CONVERTER SIGNALS WAY FORWARD FOR NO2 MEASUREMENT
Local authorities seeking more accurate NO2 readings should consider using analysers which incorporate ‘Blue Light Converters’ says air quality monitoring specialists Enviro Technology. This comment comes following a presentation held at the Royal Society of Chemistry / AAMG Conference in December 2010 by EMPA (Switzerland) – an independent research and services institution ...
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How Does a Gas Analyser Work?
Whatever you want to detect, you need to identify a property of the object that is easy-enough to measure. When it comes to monitoring and analysis of gaseous species (atoms or more commonly molecules), it turns out that it often is possible to utilize the optical properties of the gas. You need a light source, a light detector, and a characteristic behaviour of the gaseous species in question ...
By OPSIS AB
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Why measuring the ambient NO2 without conversion?
Nitrogen oxides NOx are pollutants that may have particular impact in terms of greenhouse gases, acidifying air etc ... issuance increased significantly since 1950 with the massive development of transport and industries. It therefore becomes necessary to provide measures always safer these pollutant gases, and to know the reliability of results. Currently, 60% of emissions of NO and NO2 are ...
By ENVEA
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New NO2 air standards prove technically challenging
On February 9, 2010, the U. S. Environmental Protection Agency (EPA) established a new National Ambient Air Quality Standard (NAAQS) for nitrogen dioxide (NO2). The new NO2 NAAQS is a one-hour standard set at 100 parts per billion (ppb), which is approximately 188 micrograms per cubic meter (μg/m3). Effective on April 12, 2010, the new one-hour standard is intended to protect against peak ...
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