air quality analyzer Articles

  • Economic Evaluation of Air Quality Targets for CO and Benzene

    The study is to identify and estimate the costs and benefits of meeting ambient air quality standards for carbon monoxide (CO) and benzene in the EU. The study should take the range of scientifically-based limit values for ambient air quality as given and analyze the costs and benefits of attaining these standards. These costs and benefits should be compared with the costs (loss of benefits) of ...

  • Instrument air case study

    Application Moisture is measured in instrument air to ensure that the air is properly dried. Problem Instrument air is used through-out a facility to protect delicate electronics, instruments, and to operate key process actuators. Many instruments also use instrument air to operate various pneumatic operators they might possess. Too frequently, there is ...


    By AMETEK Process Instruments

  • Air quality and ancillary benefits of climate change policies

    The Thematic Strategy on air pollution aims to improve European air pollution significantly by 2020. This report from the European Environment Agency looks a further ten years into the future, and brings together two major policy challenges — combating climate change and reducing air pollution in an integrated way. Thus, the report analyses projected changes in European air quality up to 2030, ...

  • Canarina DISPER software · air pollution mapping · algorithms 9

      Canarina DISPER software · air pollution mapping   9.1.4 Plume Rise Formulas  The plume height is used in the calculation of the Vertical Term. The distance dependent momentum plume rise equations are used to ...

  • Diurnal and seasonal variations of carbon monoxide and nitrogen dioxide in Delhi city

    Motor vehicle exhaust emissions are one of the major causes of air quality deterioration in most of the cities of the developing world. Carbon monoxide (CO) and nitrogen dioxide (NO2) are significant contributors to this adverse effect on the environment. This study analyses air quality data for three years from 1997 to 1999, at two air quality control regions in Delhi city. The regions are ...


    By Inderscience Publishers

  • So, What Are the Benefits of Using CODEL TunnelTech Analysers in Road Tunnels?

    CODEL tunnel sensors are designed exclusively for road tunnel applications. Our range of sensors provide all the essential measurements necessary to monitor and control the tunnel atmosphere. Whilst the initial cost to install analysers into the tunnel may seem significant the energy savings achieved over a period of just one year can show a substantial return on the initial outlay. This can be ...


    By Codel International Ltd

  • Comparative Evaluation of Test Methods for Reciprocating Engines; EPA Reference Methods vs. Portable Analyzer

    Abstract This is a comparative evaluation of errors in testing engines using reference methods and portable analyzers. New Mexico Environment Department (NMED) Air Quality Bureau has published a guidance document, Standard Operating Procedure (SOP), Use of Portable Analyzers in Performance Tests. EPA provides guidance on reference method testing in 40 CFR 60, Appendix A. This document is ...


    By Trinity Consultants

  • Ozone diurnal characteristics in areas with different urbanizations

    The influences of the levels of urbanisation over the tropospheric ozone in the Hong Kong Special Administrative Region (HKSAR) have been analysed using its long–term air quality data from 1990 to 2005. Urbanisation was found to have considerable influence on ozone diurnal variations. Different ozone diurnal patterns would be formed under various land uses which are categorised as rural, ...


    By Inderscience Publishers

  • Prediction of extreme ozone levels in Barcelona, Spain

    Barcelona is one of the most polluted cities in Western Europe, although our levels of air pollution are within the World Health Organisation air quality guidelines. However, high concentrations of air pollution have not been studied yet. Ground ozone levels is a topic of considerable environmental concern, since excessive level of ozone are taken as indicative of high pollution. In terms of the ...


    By Springer-Verlag GmbH

  • Reporting and exchanging air quality information using e-Reporting

    A number of EU legal instruments require EU Member States to monitor and report air quality data. This information is collated, analysed and disseminated by the European Environment Agency (EEA). At present much of the data is reported electronically by countries in data flows required under a specific legal instrument. As a result, reporting on air quality is not always integrated across all ...

  • Cumulative Air Quality Impact Assessments - A Case Study

    Introduction Deregulation across the country has resulted in the proposal of hundreds of new power plants within the last several years.  Each power plant, individually, is required to demonstrate conformance with state and federal air quality regulations.  However, there is still a great deal of public concern over the combined or cumulative impact that all of these proposed ...


    By Trinity Consultants

  • Urban Heat Island and Air Pollution—An Emerging Role for Hospital Respiratory Admissions in an Urban Area

    The aim of the study discussed here was to determine the associations among the urban heat island (UHI), air quality, and hospital respiratory admissions in the warm center of an urban area. The authors collected and analyzed the data regarding air quality parameters, meteorological parameters, and the daily hospital respiratory admissions in the Taichung metropolis in the autumns of 2003 and ...

  • Investigating weekend air quality observations with the aid of Fourier analysis in Athens, Greece

    Weekend air quality is analysed with the aid of Fourier analysis, in order to reveal time-series structures for Athens, Greece. For this reason, an appropriate analysis of a 10 year record from 1990–1999 of air quality data from the monitoring network in Athens is carried out for two specific monitoring sites. The aim of the paper is to investigate the temporal pattern of observations in order to ...


    By Inderscience Publishers

  • Federal association, France - Case Study

    “Syncore Analyst P-12 in combination with the Vacuum Pump V-700 Advanced and the Recirculating Chiller, has really made our daily work more easy. We don’t have to check the flasks all the time to avoid concentrating to dryness, and we protect the environment, which is one of our major concerns!” Company / Institution Federal association, France ...


    By BÜCHI Labortechnik AG

  • Kids With Allergies? Learn How To Get Better Air Quality In Your Home And Create A Safe Environment For Them

    Having a safe environment for our kids is an eternal battle. Fighting allergies, asthma, and many other respiratory diseases can make your life miserable – and your family’s too. We all know what it takes to keep a home clean. But what about the air itself? Every family wants to have a healthy home and that their children breathe clean air, but just a few actually ...


    By uHoo Limited

  • On PM 2.5 Filters, Let’s just clear the air between us; ok?

    In the area of a former military building complex in the Chaoyang District of Beijing is a unique and thriving artistic community.  In the middle of this art district, is a strange 7-meter tall tower shaped like an avant-garde metallic pineapple.  Designed by Dutch artist Daan Roosegaarde, it is both an artistic creation and a functional tool meant to test a possible solution for ...


    By Sterlitech Corporation

  • Analyses of human exposure to urban air quality in a children population

    PM levels of less than 2.5 μm and 10 μm and their effect on children health are studied and it is proposed a ventilation system to avoid outdoor air pollution inlet. Results reveal a positive correlation between indoor and outdoor PM concentrations, the importance of indoor sources and outdoor activity, and building permeability relevance. PM size confirms to be also important in matter of ...


    By Inderscience Publishers

  • The impact of an airport on regional air quality at Munich, Germany

    In May 1992, the new airport in Munich, Germany, became fully operational. In 1991, two research programmes within the Bavarian Climate Research Programme (BayFORKLIM) in Germany/Bavaria were established to measure, calculate and model the assumed change of the air quality in the vicinity of the new airport. By analysing the synoptic and local weather situation, measured and modelled air ...


    By Inderscience Publishers

  • PM2.5 Air Quality Modeling Updates

    There has been much activity over the past six (6) months that will impact how air quality modeling analyses will be conducted for Prevention of Significant Deterioration (PSD) permit applications with respect to particulate matter less than 2.5 microns (PM2.5).  As the resident air quality modeling expert at ALL4, I thought it ...


    By All4 Inc.

  • `Understanding and Adapting to New Dispersion Models,` published in the Oregon Insider, December 2001

    The U.S. Environmental Protection Agency (EPA) has proposed revisions to its air dispersion modeling guidance1 ("Guideline on Air Quality Models", or simply "Guideline"), found in 40 CFR 51 Appendix W.2 These revisions, once finalized, will create significant changes in the way that air quality analyses are performed in the US, and perhaps the most significant changes since (he Guideline was ...


    By Trinity Consultants

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