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{{Image|AirPollutionSource3.jpg|right|250px|Industrial air pollution source.}}


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The '''ADMS atmospheric dispersion modeling system''' is an advanced [[Air pollution dispersion modeling|air pollution dispersion model]]<ref name=Turner/><ref name=Schnelle/><ref name=Beychok/> for calculating the concentrations of [[air pollution|air pollutants]] emitted both [[Air pollution dispersion terminology|continuously]] from [[Air pollution dispersion terminology|point, line, volume and area sources]], or [[Air pollution dispersion terminology|intermittently]] from point sources.<ref name=CERC/> It was developed by [[Cambridge Environmental Research Consultants (CERC)]] of the [[United Kingdom]] (UK) in collaboration with the UK's [[Met Office]] and the [[University of Surrey]].  
The '''ADMS''' (Atmospheric Dispersion Modelling System) is an advanced [[Air pollution dispersion modeling|air pollution dispersion model]] for calculating the concentrations of [[air pollution|air pollutants]] emitted both [[Air pollution dispersion terminology|continuously]] from [[Air pollution dispersion terminology|point, line, volume and area sources]], or [[Air pollution dispersion terminology|intermittently]] from point sources.<ref name=CERC>[http://www.cerc.co.uk/software/adms4.htm The CERC web site pages about ADMS]</ref> It was developed by [[Cambridge Environmental Research Consultants (CERC)]] of the [[United Kingdom]] (UK) in collaboration with the UK's [[Met Office]], [[National Power plc]]<ref>Now [[INNOGY Holdings plc]]</ref> and the [[University of Surrey]]. The first version of ADMS was released in 1993 and the current version 4 was released in 2007.<ref name=CERC/>
 
==The ADMS suite of models==
 
The first version of ADMS was released in 1993 and the current version 4 was released in 2007. Currently, ADMS is comprised of a suite of models:<ref name=CERC/>
 
*ADMS 4: Modeling the dispersion of industrial [[air pollution emissions]].
*ADMS-Screen: Screening model for industrial air pollution emissions.
*ADMS-Urban: Managing air quality for urban planning and reviews.
*ADMS-Roads: Modeling the dispersion of air pollutant emissions from road traffic.
*ADMS-Airport: Modeling the dispersion of air pollutant emissions from airplane traffic at airports.
*ADMSSTAR: Modeling the dispersion of short-term accidental radioactive releases.
*ADMS-Fire: Modelling the dispersion and deposition of air pollution from fires.


==Typical applications==
==Typical applications==


ADMS is used to model the environmental impact of existing or proposed industrial facilities. It can also be used to assess air quality with respect to the air quality standards such as the [[European Union]] [[Air Quality Directive]],<ref>[http://ec.europa.eu/environment/air/quality/legislation/directive.htm New Air Quality Directive] From the European Union's website</ref> the UK [[Air Quality Strategy]],<ref>[http://www.defra.gov.uk/environment/airquality/strategy/index.htm Air Quality Strategy] from the website of the UK's [[Department for Environment, Food and Rural Affairs]]</ref> the [[United States|U.S.]] [[National Ambient Air Quality Standards]] (NAAQS) and the [[World Health Organization]] (WHO) [[Air Quality Guidelines]].<ref>[http://www.euro.who.int/Document/E90038.pdf Air Quality Guidelines] From the website of the World Health Organization</ref> Some typical applications are:
ADMS 4 is the primary tool used for modeling of the environmental impact of air pollution emissions from existing or proposed industrial facilities. It can also be used to assess air quality with respect to the air quality standards such as the [[European Union]] [[Air Quality Directive]],<ref name=AirQualityDirective/> the UK [[Air Quality Strategy]],<ref name=DefraAirQuality/> the [[United States of America|U.S.]] [[National Ambient Air Quality Standards]] (NAAQS) and the [[World Health Organization]] (WHO) [[Air Quality Guidelines]].<ref name=WHO-AirQuality/> Some typical applications are:


:;*Demonstrating compliance with the UK [[Integrated Pollution Prevention and Control]] (IPPC) regulations<ref>[http://www.ippc-info.co.uk/ IPCC Information]</ref>
:;*Demonstrating compliance with the UK [[Integrated Pollution Prevention and Control]] (IPPC) regulations<ref name=IPCC-Regs/>
:;*[[Flue gas stack|Stack]] height determination,  
:;*[[Flue gas stack|Stack]] height determination,  
:;*Odor modeling,
:;*Odor modeling,
Line 16: Line 28:
==Features and capabilities==
==Features and capabilities==


The model includes [[algorithm]]s which take into account: [[Air pollution dispersion terminology|downwash]] effects of nearby buildings within the path of the dispersing pollution plume; effects of complex terrain; effects of coastline locations; [[Air pollution dispersion terminology|wet deposition]], gravitational settling and [[Air pollution dispersion terminology|dry deposition]]; short term fluctuations in pollutant concentration; chemical reactions; [[radioactive decay]] and gamma-dose; [[Atmospheric dispersion modeling#The Briggs plume rise equations|pollution plume rise]] as a function of distance; jets and directional releases; averaging time ranging from very short to annual; and condensed plume visibility. The system also includes a built-in [[Meteorology|meteorological]] data input preprocessor which allows a variety of input meteorological data. <ref name=CERC/>
The ADMS 4 model includes [[algorithm]]s which take into account: [[Air pollution dispersion terminology|downwash]] effects of nearby buildings within the path of the dispersing pollution plume; effects of complex terrain; effects of coastline locations; [[Air pollution dispersion terminology|wet deposition]], gravitational settling and [[Air pollution dispersion terminology|dry deposition]]; short term fluctuations in pollutant concentration; chemical reactions; [[radioactive decay]] and gamma-dose; [[Atmospheric dispersion modeling#The Briggs plume rise equations|pollution plume rise]] as a function of distance; jets and directional releases; averaging time ranging from very short to annual; and condensed plume visibility. The system also includes a built-in [[Meteorology|meteorological]] data input preprocessor which allows a variety of input meteorological data.<ref name=CERC-ADMS4-Brochure/><ref name=MDS/>


The model is capable of simulating [[Air pollution dispersion terminology|passive or buoyant]] continuous plumes as well as short duration [[Air pollution dispersion terminology|puff]] releases. It characterizes the [[Air pollution dispersion terminology|atmospheric turbulence]] by two parameters, the [[boundary layer]] depth and the [[Monin-Obukhov length]], rather the single parameter [[Air pollution dispersion terminology|Pasquill class]]. <ref name=CERC/>
The model is capable of simulating [[Air pollution dispersion terminology|passive or buoyant]] continuous plumes as well as short duration [[Air pollution dispersion terminology|puff]] releases. It characterizes the [[Air pollution dispersion terminology|atmospheric turbulence]] by two parameters, the [[boundary layer]] depth and the [[Monin-Obukhov length]], rather the single parameter [[Air pollution dispersion terminology|Pasquill class]].<ref name=CERC-ADMS4-Brochure/><ref name=MDS/>


ADMS can model up to 300 [[emission]] sources, of which: <ref name=CERC/>
ADMS 4 can model up to 300 [[emission]] sources, of which:<ref name=CERC-ADMS4-Brochure/>


* up to 300 may be point or jet sources
* up to 300 may be [[Air pollution dispersion terminology|point sources]]
* up to 30 line sources, 30 area sources and 30 volume sources, may be modelled simultaneously
* up to 30 [[Air pollution dispersion terminology|line sources]], 30 [[Air pollution dispersion terminology|area sources]] and 30 [[Air pollution dispersion terminology|volume sources]], may be modeled simultaneously


The performance of the model has been validated against more than 15 measured dispersion data sets.<ref>[http://www.cerc.co.uk/software/publications.htm Documentation: Validation papers]</ref>
The performance of the model has been validated against more than 15 measured dispersion data sets.<ref name=ADMS-Validation/>


==Users of the ADMS==
==Users of the ADMS suite of models==


The users of ADMS include:
The users of ADMS include:


:* UK governmental regulatory authorities including the [[Health and Safety Executive|UK Health and Safety Executive]] (HSE)
:* UK governmental regulatory authorities including the [[Health and Safety Executive|UK Health and Safety Executive]] (HSE)
:* [[Environment Agency]] of England and Wales
:* [[UK Environment Agency]] of [[England]] and [[Wales]]
:* Over 130 individual company license holders in the UK
:* Over 130 individual company license holders in the UK
:* [[Scottish Environment Protection Agency]] (SEPA) in Scotland
:* [[Scottish Environment Protection Agency]] (SEPA) in Scotland
:* [[Environment and Heritage Service]] in Northern Ireland  
:* [[Environment and Heritage Service]] in [[Northern Ireland]]
:* Governmental organizations including the [[Food Standards Agency]] (UK)
:* Governmental organizations including the [[Food Standards Agency]] (UK)
:* Users in other European countries, Asia, Australia and the Middle East
:* Users in other [[Europe|European]] countries, [[Asia]], [[Australia]] and the [[Middle East]]
:* Accepted by [[U.S. Environmental Protection Agency|U.S. EPA]] as an "Alternative" model<ref>[http://www.epa.gov/scram001/dispersion_alt.htm Alternative models] From the website of the U.S. EPA</ref>
:* Accepted by [[U.S. Environmental Protection Agency|U.S. EPA]] as an "Alternative" model<ref name=EPA/>


==References==
==References==
{{reflist}}
{{reflist|refs=
 
<ref name=Turner>{{cite book|author=D.B. Turner|title=[[Workbook of Atmospheric Dispersion Estimates]]| edition=2nd Edition|publisher=CRC Press|year=1994|id=ISBN 1-56670-023-X}} [http://www.crcpress.com/shopping_cart/products/product_detail.asp?sku=L1023&parent_id=&pc= www.crcpress.com]</ref>
 
<ref name=Beychok>{{cite book|author=Beychok, Milton R.|title=[[Fundamentals of Stack Gas Dispersion]]|edition=4th Edition|publisher=author-published|year=2005|id=ISBN 0-9644588-0-2}} [http://www.air-dispersion.com www.air-dispersion.com]</ref>
 
<ref name=Schnelle>{{cite book|author=Karl B. Schnelle and Partha R. Dey|title=Atmospheric Dispersion Modeling Compliance Guide|edition=1st Edition|publisher=McGraw-Hill Professional|year=2000|id=ISBN 0-07-058059-6}} Available online at [http://books.google.com/books?hl=en&lr=&id=Rk-2uhU7JqAC&oi=fnd&pg=PR11&dq=%22Atmospheric+Dispersion+Modeling+Compliance+Guide%22&ots=YS04AwZvET&sig=skDic1BfISl_v4IMLaoVE3eR1QA#v=onepage&q&f=false Google Books]</ref>
 
<ref name=CERC>[http://www.cerc.co.uk/environmental-software.html The ADMS software suite] From the website of the Cambridge Environmental Research Consultants (CERC)</ref>
 
<ref name=AirQualityDirective>[http://ec.europa.eu/environment/air/quality/legislation/directive.htm New Air Quality Directive] From the European Union's website</ref>
 
<ref name=DefraAirQuality>[http://www.defra.gov.uk/environment/quality/air/air-quality/ Air Quality] from the website of the UK's [[Department for Environment, Food and Rural Affairs]]</ref>
 
<ref name=WHO-AirQuality>[http://www.euro.who.int/en/what-we-do/health-topics/environment-and-health/air-quality/publications/pre2009/air-quality-guidelines-for-europe Air Quality Guidelines For Europe] From the website of the World Health Organization</ref>
 
<ref name=IPCC-Regs>[http://www.ippc-info.co.uk/ IPCC Information]</ref>
 
<ref name=CERC-ADMS4-Brochure>[http://www.cerc.co.uk/environmental-software/assets/data/CERC_ADMS4_brochure.pdf ADMS 4 Technical Specification]</ref>
 
<ref name=MDS>[http://acm.eionet.europa.eu/databases/MDS/index_html MDS - Model Documentation System] From the website of the European Environment Information and Observation Network (EIONET)</ref>
 
<ref name=ADMS-Validation>[http://www.cerc.co.uk/environmental-software/model-documentation.html#validation Model Documentation; Validation Studies]</ref>
 
<ref name=EPA>[http://www.epa.gov/scram001/dispersion_alt.htm Alternative models] From the website of the U.S. EPA</ref>
}}[[Category:Suggestion Bot Tag]]

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(CC) Photo: Ahmed Sagarwala
Industrial air pollution source.

The ADMS atmospheric dispersion modeling system is an advanced air pollution dispersion model[1][2][3] for calculating the concentrations of air pollutants emitted both continuously from point, line, volume and area sources, or intermittently from point sources.[4] It was developed by Cambridge Environmental Research Consultants (CERC) of the United Kingdom (UK) in collaboration with the UK's Met Office and the University of Surrey.

The ADMS suite of models

The first version of ADMS was released in 1993 and the current version 4 was released in 2007. Currently, ADMS is comprised of a suite of models:[4]

  • ADMS 4: Modeling the dispersion of industrial air pollution emissions.
  • ADMS-Screen: Screening model for industrial air pollution emissions.
  • ADMS-Urban: Managing air quality for urban planning and reviews.
  • ADMS-Roads: Modeling the dispersion of air pollutant emissions from road traffic.
  • ADMS-Airport: Modeling the dispersion of air pollutant emissions from airplane traffic at airports.
  • ADMSSTAR: Modeling the dispersion of short-term accidental radioactive releases.
  • ADMS-Fire: Modelling the dispersion and deposition of air pollution from fires.

Typical applications

ADMS 4 is the primary tool used for modeling of the environmental impact of air pollution emissions from existing or proposed industrial facilities. It can also be used to assess air quality with respect to the air quality standards such as the European Union Air Quality Directive,[5] the UK Air Quality Strategy,[6] the U.S. National Ambient Air Quality Standards (NAAQS) and the World Health Organization (WHO) Air Quality Guidelines.[7] Some typical applications are:

Features and capabilities

The ADMS 4 model includes algorithms which take into account: downwash effects of nearby buildings within the path of the dispersing pollution plume; effects of complex terrain; effects of coastline locations; wet deposition, gravitational settling and dry deposition; short term fluctuations in pollutant concentration; chemical reactions; radioactive decay and gamma-dose; pollution plume rise as a function of distance; jets and directional releases; averaging time ranging from very short to annual; and condensed plume visibility. The system also includes a built-in meteorological data input preprocessor which allows a variety of input meteorological data.[9][10]

The model is capable of simulating passive or buoyant continuous plumes as well as short duration puff releases. It characterizes the atmospheric turbulence by two parameters, the boundary layer depth and the Monin-Obukhov length, rather the single parameter Pasquill class.[9][10]

ADMS 4 can model up to 300 emission sources, of which:[9]

The performance of the model has been validated against more than 15 measured dispersion data sets.[11]

Users of the ADMS suite of models

The users of ADMS include:

References

  1. ↑ D.B. Turner (1994). Workbook of Atmospheric Dispersion Estimates, 2nd Edition. CRC Press. ISBN 1-56670-023-X.  www.crcpress.com
  2. ↑ Karl B. Schnelle and Partha R. Dey (2000). Atmospheric Dispersion Modeling Compliance Guide, 1st Edition. McGraw-Hill Professional. ISBN 0-07-058059-6.  Available online at Google Books
  3. ↑ Beychok, Milton R. (2005). Fundamentals of Stack Gas Dispersion, 4th Edition. author-published. ISBN 0-9644588-0-2.  www.air-dispersion.com
  4. ↑ 4.0 4.1 The ADMS software suite From the website of the Cambridge Environmental Research Consultants (CERC)
  5. ↑ New Air Quality Directive From the European Union's website
  6. ↑ Air Quality from the website of the UK's Department for Environment, Food and Rural Affairs
  7. ↑ Air Quality Guidelines For Europe From the website of the World Health Organization
  8. ↑ IPCC Information
  9. ↑ 9.0 9.1 9.2 ADMS 4 Technical Specification
  10. ↑ 10.0 10.1 MDS - Model Documentation System From the website of the European Environment Information and Observation Network (EIONET)
  11. ↑ Model Documentation; Validation Studies
  12. ↑ Alternative models From the website of the U.S. EPA
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