Nitrogen oxides includes the two pollutants nitric oxide (NO) and nitrogen dioxide (NO2). Power-generation plants and motor vehicles are the principal sources of NOx, through high temperature combustion. NOx contributes to the formation of acid rain and is also a recognised ozone precursor.

Short-term exposure to NO2 is associated with reduced lung function and airway responsiveness, and increased reactivity to natural allergens. Long-term exposure is associated with increased risk of respiratory infection in children.

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EPA

Environmental Protection Agency Air Quality Team

Scientific Officer

Telephone: +353 1 268 0100

e-mail: airqd@epa.ie

EPA Regional Inspectorate

Richview, Clonskeagh, Dublin 14, Ireland

Responsibilities for this resource: resourceProvider publisher

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Please Read Carefully Before Downloading

It is important for the EPA and the Environmental Research Community to know that the data and information products we distribute are useful to the user community we support. One way of doing this is by tracking the use of data and information in publications. Parts of or all of the datasets, data, or digital information products available here can be freely downloaded for further use in scientific applications under the condition that the source will be properly quoted in published papers, journals, websites, presentations, books, etc. Whenever possible the EPA strongly urge you to cite the use of these data, information, and web resources in the reference section of your publications. For convenience an automatically generated citation is available below which can be used immediately for citation purposes.

Data Download Disclaimer: Before downloading any of the data or information objects below you are kindly asked to read the data download disclaimer Read Disclaimer (Opens in New Window). Downloading data or information objects from SAFER-Data indicates an acceptance of the data download disclaimer and the conditions outlined within it.

Below is a selection of the [ 109 ] files attached to this resource : To view the list of all data and information products attached to this resource you will need to view the Full Attachment List

Attachment Name and Download Link	Approx Size
Attachment 1    Carlow_NOX_TR_2004.txt	0.17 Mb
Attachment 2    Clare_Ennis_NOX_2006.xls	0.45 Mb
Attachment 3    Clare_Ennis_NOx_2007.xls	0.5 Mb
Attachment 4    Cork_Blackpool_NOX_TR_2000.txt	0.08 Mb
Attachment 5    Cork_CorkHarbour_NOx_2007.xls	0.44 Mb
Attachment 6    Cork_CorkHarbour_NOx_2008.xls	0.49 Mb
Attachment 7    Cork_Glashaboy_NOx_1995.xls	0.54 Mb
Attachment 8    Cork_Glashaboy_NOx_2000.xls	0.46 Mb
Attachment 9    Cork_Glashaboy_NOx_2001.xls	0.55 Mb
Attachment 10    Cork_Glashaboy_NOx_2002.xls	0.53 Mb

Suggested Citation Information

The information supplied in the table below should be provided with all citations to this electronic resource. You are requested to format each of the fields below as required by the specific bibliographical style you are using.

Author(s)	EPA,
Title Of Website	Secure Archive For Environmental Research Data
Publication Information	EPA Ireland Archive of Nitrogen Oxides Monitoring Data
Name of Organisation	Environmental Protection Agency Ireland
Electronic Address or URL	http://erc.epa.ie/safer/resource?id=216a8992-76e5-102b-aa08-55a7497570d3
Unique Identifier	216a8992-76e5-102b-aa08-55a7497570d3
Date of Access	Last Accessed: 2010-09-06

An example of this citation in proper usage:

EPA,   "EPA Ireland Archive of Nitrogen Oxides Monitoring Data". Associated datasets and digitial information objects connected to this resource are available at: Secure Archive For Environmental Research Data (SAFER) managed by Environmental Protection Agency Ireland http://erc.epa.ie/safer/resource?id=216a8992-76e5-102b-aa08-55a7497570d3 (Last Accessed: 2010-09-06)

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Resource Availability:	Public-Open
Limitations on the use of this Resource	The EPA requests an acknowledgement (in publications, conference papers, etc) from those who use information or data received from this online system, its tools and software. For clarifications on any aspect of this raw data users should contact the air quality team. A recommended citation is provided below.
Information On Access Constraints	noRestrictions
Format Of Attached Data Files And Resources	No Electronic Formatted Files Attached
How are data within the resource presented?	tableDigital
Data from this resource are supplied in the following media types	onLine
Number of Attached Files (Publicly Available for Download):	109

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The information outlined in this section of the metadata for this resource relates to specific parts of the INSPIRE Directive's requirements for Geospatial Metadata. Consequently some of the information presented here is in INSPIRE ISO19115 Metadata format. For those interested in learning more about the implementing rules for metadata in INSPIRE the Joint Research Center provide a PDF document (780Kb) explaining each of the metadata fields.

SAFER-Data Identification Number	71
SAFER-Data Display URL	http://erc.epa.ie/safer/iso19115/display?isoID=71
Resource Title	EPA Ireland Archive of Nitrogen Oxides Monitoring Data
Resource Keywords	NOX NO2 Nitrogen Oxides
ISO 19115 Topic Categories	climatologyMeterologyAtmosphere
Languages Within Resource Data/Documentation	eng
Metadata Language	eng
EPA/ERTDI/STRIVE Project Code	Air Quality
EPA/ERTDI/STRIVE Project Theme	Air Quality
Unique Resource Idenifier ID	216a8992-76e5-102b-aa08-55a7497570d3
This Metadata Describes The Following:	dataset
Frequency Of Changes To This Metadata or Attached Data	annually

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Project Start Date	Sunday 1st June 1997 (01-06-1997)
Earliest Recorded Date within any attached datasets or digital objects	Sunday 1st January 1995 (01-01-1995)
Most Recent Recorded Date within any attached datasets or digital objects	Wednesday 31st December 2008 (31-12-2008)
Resource Metadata Published On	Monday 19th May 2008 (19-05-2008)
Last Resource Metadata Edit occured on	Wednesday 23rd September 2009 at 16:13:00 (23-09-2009)
Resource Datasets or Digital Objects Updated On	Wednesday 23rd September 2009 at 16:13:00 (23-09-2009)

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Description of Geographical Characteristics of This Resource

Fixed and trailer stations on the island of Ireland.

Geographical Bounding Rectangles for this Resource

Geographical bounding rectangles are frequently used as an indication of the general position of a geographic feature, dataset, or geographic information resource. All geographical bounding rectangles shown here are supplied in decimal degrees of longitude and latitude (WGS 84 Coordinate System)

Rectangle 1: (N,W,S,E) (55.3291444084507,-10.7857421875,51.3580615731909,-5.55908203125)

Rectangle 2: (N,W,S,E) (53.43572,-6.48193,53.20932,-6.04248)

Rectangle 3: (N,W,S,E) (53.31775,-9.1626,53.19945,-8.87695)

Rectangle 4: (N,W,S,E) (51.92394,-8.535,51.86886,-8.33038)

Rectangle 5: (N,W,S,E) (53.73734,-6.40778,53.69671,-6.25946)

Rectangle 6: (N,W,S,E) (52.37057,-6.36108,52.3068,-6.54236)

See The Geographical Areas For This Resource On An Online Map

There are geographical coordinates corresponding to this resource. This allow you to see the geographical extend of the study or research area of the data or publications outlined in this resource. The geographical coordinates can viewed on an online map. View Geographical Extents on an Online Map

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Resource Lineage Information

Directive 1999/30/EC (CEC, 1999) established an hourly limit of 200 μg/m3 and an annual mean limit of 40 μg/m3 in respect of NO2. No more than 18 exceedances of the hourly limit values are allowed per year. Both limit values come into force on 1 January 2010.

Supplementary Metadata Information

Oxides of Nitrogen- this pollutant is measured using an API M200 NOx analyser. Both nitrogen dioxide and nitrogen monoxide are measured by Chemiluminescence, which, in this case, is the emission of light during the reaction of NO with Ozone. Air is sampled, through a filter, into a reaction chamber in the analyser. Here it is mixed with Ozone and the emitted radiation is measured to give the number of NO molecules. To determine the NO2 concentration, sampled air is fed through a converter to reduce the NO2 to NO and measured as above. The signal given off is the concentration of NO2 plus NO. By then taking away the concentration of NO from this, you get the NO2 concentration. FILENAME CONVENTION: To intuitively guide users on the data contained in each of the dataset files the FILENAMES shown abide by a simple convention. The first part of the filename corresponds to the station location where the monitoring took place, the second refers to the pollutant measured. The third part of the filename corresponds to the year of measurement. For datasets which contain data measured over two years rather than one the year provided includes the year when measurement commented at that station site. If measurement data was collected at using a mobile monitoring station the code TR will follow the pollutant name. FILE TYPES: For the most part files will be available in one of three different formats. MS Excel spreadsheet format (look for the XLS file name),Comma Separated formats (CSV file type), or plain text (TXT file type). The latter two will open in recent versions of MS Excel.

Links To Other Related Resources

http://www.epa.ie/environment/air/quality/nitrogenoxides/ (Opens in a new window)

Any links supplied by the resource owner are stored such that they will open in a new window. Following such a link may lead to a 3rd party website over which EPA has no control in regards to contents or suitability.

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The following is a list of resources on SAFER-Data from which users downloaded attachments from soon after downloading attachments from this resource EPA Ireland Archive of Nitrogen Oxides Monitoring Data. You can view the full metadata description for these resources by using the links supplied.

• EPA Ireland Archive of PM10 Monitoring Data View Full Metadata Description
• EPA Ireland Archive of Sulphur Dioxide (SO2) Monitoring Data View Full Metadata Description
• EPA Ireland Archive of Ozone Monitoring Data View Full Metadata Description
• EPA Ireland Archive of Carbon Monoxide Monitoring Data View Full Metadata Description
• EPA Ireland Archive of Benzene Monitoring Data View Full Metadata Description

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