air quality mapping Articles

The aim of this paper is to promote the use of uncertainty mapping when spatial assessments of air quality are made. A large number of air quality maps are produced for scientific and policy purposes but rarely are corresponding maps of their uncertainty included. The need for such maps and the methods to produce them are described. Several uncertainty parameters are discussed but it is ...

Feb. 7, 2011

By Inderscience Publishers

Being able to provide quick and accurate pollutant maps from readings at isolated measurement stations is becoming more important today in light of the European norms on air quality and the public’s demand to be informed. Commonly used algorithms for cartography are quick but their accuracy remains to be determined.Firstly, the choice of method is arbitrary and based on user’s subjective ...

Jan. 2, 2000

By Geovariances

The Clean Air Mercury Rule (CAMR) requires coal-fired electric power plants to install and operate mercury  continuous monitoring systems by December 31, 2008 such that they will have 12 months of “submittable” data by 1 January 2010. For all practical purposes, “submittable data” are “quality-assured data” that meet the extensive quality control requirements cited in the various regulations that ...

Jan. 21, 2007

By Weston Solutions, Inc

Introduction and background This report provides detailed background documentation of the air quality modelling and mapping activities carried out at NILU for the mapping of PM10 and NO2 in the Nord-Jæren region. This documentation supports the ‘summary report’ (in Norwegian) provided to Statens Vegvesen region west (NILU report TR 57/2013) entitled ...

Jan. 1, 2014

By NILU - The Norwegian Institute for Air Research

Isatis has been part of Airparif data processing workflow for 10+ years. The software is used daily to gather data and map air pollution over Paris area. The facts Airparif is part of the French AASQA network (“Associations Agréées de Surveillance de la Qualité de l’Air”). The AASQA are a French non-profit association accredited ...

Nov. 25, 2014

By Geovariances

Any person involved in air quality studies knows that cartographic representation of data (input, output or measured) is very important, time consuming and, most often, difficult. One of the difficulties is to find a suitable cartographic base over which the information (sources, sensible receptors, buildings, isopleths, etc.) must be represented. Sometimes the cartographic base is available, but ...

Feb. 20, 2008

By Enviroware s.r.l.

  Canarina DISPER software · air emissions mapping    Unstable or Neutral - Crossover Between Momentum and Buoyancy. For cases with stack gas temperature greater than or equal to ambient temperature, it must be determined whether the plume rise is ...

Nov. 14, 2011

By Canarina Environmental Software

  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 ...

Nov. 14, 2011

By Canarina Environmental Software

The main features and functionality of the urban air quality version of ADMS (ADMS-Urban) have been presented at previous Harmonisation Workshops. The system has now been set up and applied to air quality management, decision support and air quality forecasting in a number of major cities in Europe and beyond, including London. Key recent developments of the system include a regional chemistry ...

Jan. 1, 1999

By Cambridge Environmental Research Consultants (CERC)

The main features and functionality of the urban air quality version of ADMS (ADMS-Urban) have been presented at previous Harmonisation Workshops. The system has now been set up and applied to air quality management, decision support and air quality forecasting in a number of major cities in Europe and beyond, including London. Key recent developments of the system include a regional chemistry ...

Jan. 26, 2004

By Inderscience Publishers

Regionalisation is to organise a large set of spatial objects into spatially contiguous regions despite optimising the homogeneity of the derived regions, while representing social and economic geography. To confront this problem, it is necessary to classify the regions to form groups that are homogeneous in air quality attributes. It is to develop a system that applies data mining techniques to ...

Jan. 23, 2014

By Inderscience Publishers

In recent years, urban air pollution has emerged as an acute problem because of its negative effect on health and living conditions. Regional air quality problems, in general, are linked to violations of specified air quality standards. The current study aims to find neural network based air quality predictors, which can work with a limited number of datasets and are robust enough to handle data ...

May 11, 2004

By Inderscience Publishers

Odor issues related to industrial processes are not uncommon.  An odor is caused by one or more volatilized organic compounds (VOCs) that humans can perceive by the sense of smell.  The challenge is that “odor is subjective, and what is sweet to some, can be a nuisance to others.   In most cases the ...

Sep. 9, 2018

By Catalytic Products International (CPI)

The characters in this story are fictional. However the data are real. The story is set on 27 July 2008 when an air quality warning was issued in Brussels. Anna is 37 years old and lives in the centre of Brussels. She and her young son Johan are planning a trip outside the busy city. Anna suffers from asthma and her doctor has warned of the dangers of air pollution, especially on hot summer days. ...

Mar. 1, 2009

By European Environment Agency (EEA)

The lichen Ramalina celastri was employed as an in situ biomonitor for the study of air quality and heavy metal distribution in the central region of the Argentine Republic. The thallus content of copper, iron, manganese, cobalt, zinc, nickel and lead was determined by atomic absorption spectrophotometry. Pigments, hydroperoxy conjugated dienes, malondialdehyde and sulfur were also measured. Some ...

Nov. 19, 2004

By Inderscience Publishers

This paper describes a methodology to combine measurements from air quality stations and estimates from the CHIMERE model for air quality assessment in Spain. The methodology consists of using linear regression and kriging interpolation to correct the model results, improving the fit to the observations. It was separately applied to rural and urban conditions, giving rise to maps for each case, ...

Oct. 14, 2012

By Inderscience Publishers

NILU has established an integrated real time monitoring and modelling system for the Haifa metropolitan area. The project, performed for the Haifa District Municipal Association for the Environment (HDMAE), includes the development and operation in real time of a deterministic air quality dispersion model for the Haifa area. The results of the model calculations are transferred to the client by ...

Jan. 10, 2005

By NILU - The Norwegian Institute for Air Research

In France, air quality data are acquired by associations in charge of the air quality monitoring (Agences Agréées pour la Surveillance de la Qualité de l’Air - AASQA) These associations use the automatic procedures of ISATIS to daily update the pollution maps they publish on their websites. These automatic procedures make use of batch and allow to save time in the cartography because they enable ...

Jul. 6, 2007

By Geovariances

The Ruhr area is the biggest German megalopolis, a conglomerate of several intertwining major cities, with more than 5.3 million inhabitants. In spite of many efforts in recent years to improve the air quality in the Ruhr area, especially residents in street canyons with a high traffic density are still exposed to poor air quality and meeting the limit values of European air quality guidelines ...

May 30, 2008

By IVU Umwelt GmbH

The Ruhr area is the biggest German megalopolis, a conglomerate of several intertwining major cities, with more than 3.5 million inhabitants. In spite of many efforts in recent years to improve the air quality in the Ruhr area, especially residents in street canyons with a high traffic density are still exposed to poor air quality, and meeting the limit values of European air quality directives ...

Feb. 18, 2009

By IVU Umwelt GmbH