Air quality and greenhouse gases - Fylde - Revision history

Ajhil: /* Non-methane hydrocarbons results */

2026-05-12T10:27:30Z

Non-methane hydrocarbons results

← Older revision		Revision as of 11:27, 12 May 2026
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	The plots in figures 8, 9 and 10 show the distribution of individual species (ethane, propane and benzene) at the Little Plumpton and Kirby Misperton sites, together with distributions from a site at Auchencorth Moss in Scotland and samples taken from air above BGS’s boreholes around Kirby Misperton. The dataset for hydrocarbons from 2016 is available on the [https://catalogue.ceda.ac.uk/uuid/4878d1fcd0694c07a0dc08ceaccae9e1/ BADC website archive.]		The plots in figures 8, 9 and 10 show the distribution of individual species (ethane, propane and benzene) at the Little Plumpton and Kirby Misperton sites, together with distributions from a site at Auchencorth Moss in Scotland and samples taken from air above BGS’s boreholes around Kirby Misperton. The dataset for hydrocarbons from 2016 is available on the [https://catalogue.ceda.ac.uk/uuid/4878d1fcd0694c07a0dc08ceaccae9e1/ BADC website archive.]

	[[Image:~~environbaselinemonitoringvideo~~.jpg\|frameless\|center\|500px\|]]		[[Image:figure8_boxplot (3).jpg\|frameless\|center\|500px\|]]

	<center>'''Figure 8'''    Box plots showing the distributions of ethane from Kirby Misperton (KM), Little Plumpton (LP), air above BGS boreholes (BH) and Auchencorth Moss (AM). BGS © UKRI.</center>		<center>'''Figure 8'''    Box plots showing the distributions of ethane from Kirby Misperton (KM), Little Plumpton (LP), air above BGS boreholes (BH) and Auchencorth Moss (AM). BGS © UKRI.</center>

	[[Image:~~TimeSeriesOfOzoneConcentrationsLancs~~.jpg\|frameless\|center\|500px\|]]		[[Image:figure9_boxplot (2).jpg\|frameless\|center\|500px\|]]

	<center>'''Figure 9'''    Box plots showing the distributions of propane from Kirby Misperton (KM), Little Plumpton (LP), air above BGS boreholes (BH) and Auchencorth Moss (AM). BGS © UKRI.</center>		<center>'''Figure 9'''    Box plots showing the distributions of propane from Kirby Misperton (KM), Little Plumpton (LP), air above BGS boreholes (BH) and Auchencorth Moss (AM). BGS © UKRI.</center>

	[[Image:~~environbaselinemonitoringvideo~~.jpg\|frameless\|center\|500px\|]]		[[Image:figure10_boxplot.jpg\|frameless\|center\|500px\|]]

	<center>'''Figure 10'''    Box plots showing the distributions of benzene from Kirby Misperton (KM), Little Plumpton (LP), air above BGS boreholes (BH) and Auchencorth Moss (AM). BGS © UKRI.		<center>'''Figure 10'''    Box plots showing the distributions of benzene from Kirby Misperton (KM), Little Plumpton (LP), air above BGS boreholes (BH) and Auchencorth Moss (AM). BGS © UKRI.

Ajhil: /* Non-methane hydrocarbons results */

2026-05-12T10:22:49Z

Non-methane hydrocarbons results

← Older revision		Revision as of 11:22, 12 May 2026
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	[[Image:environbaselinemonitoringvideo.jpg\|frameless\|center\|500px\|]]		[[Image:environbaselinemonitoringvideo.jpg\|frameless\|center\|500px\|]]

	Box plots showing the distributions of ethane from Kirby Misperton (KM), Little Plumpton (LP), air above BGS boreholes (BH) and Auchencorth Moss (AM).		<center>'''Figure 8'''    Box plots showing the distributions of ethane from Kirby Misperton (KM), Little Plumpton (LP), air above BGS boreholes (BH) and Auchencorth Moss (AM). BGS © UKRI.</center>

	[[Image:~~environbaselinemonitoringvideo~~.jpg\|frameless\|center\|500px\|]][[Image:environbaselinemonitoringvideo.jpg\|frameless\|center\|500px\|]]		[[Image:TimeSeriesOfOzoneConcentrationsLancs.jpg\|frameless\|center\|500px\|]]

			<center>'''Figure 9'''    Box plots showing the distributions of propane from Kirby Misperton (KM), Little Plumpton (LP), air above BGS boreholes (BH) and Auchencorth Moss (AM). BGS © UKRI.</center>

			[[Image:environbaselinemonitoringvideo.jpg\|frameless\|center\|500px\|]]

			<center>'''Figure 10'''    Box plots showing the distributions of benzene from Kirby Misperton (KM), Little Plumpton (LP), air above BGS boreholes (BH) and Auchencorth Moss (AM). BGS © UKRI.

			Benzene annual mean concentration at Little Plumpton: 0.412 ppb; observed range: 0.046 to 2.4 ppb (n=26 samples over October 2015 to October 2016).

			Note: EC Air Quality Directive limit value for benzene (annual mean) = 1.54 ppb. Observations to date indicate a mean baseline concentration around a factor of three lower than the EC directive limit value.</center>

	[[category:Environmental baseline monitoring in the Fylde, Lancashire]]		[[category:Environmental baseline monitoring in the Fylde, Lancashire]]

Ajhil: /* Non-methane hydrocarbons results */

2026-05-12T10:17:10Z

Non-methane hydrocarbons results

← Older revision		Revision as of 11:17, 12 May 2026
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	The plots in figures 8, 9 and 10 show the distribution of individual species (ethane, propane and benzene) at the Little Plumpton and Kirby Misperton sites, together with distributions from a site at Auchencorth Moss in Scotland and samples taken from air above BGS’s boreholes around Kirby Misperton. The dataset for hydrocarbons from 2016 is available on the [https://catalogue.ceda.ac.uk/uuid/4878d1fcd0694c07a0dc08ceaccae9e1/ BADC website archive.]		The plots in figures 8, 9 and 10 show the distribution of individual species (ethane, propane and benzene) at the Little Plumpton and Kirby Misperton sites, together with distributions from a site at Auchencorth Moss in Scotland and samples taken from air above BGS’s boreholes around Kirby Misperton. The dataset for hydrocarbons from 2016 is available on the [https://catalogue.ceda.ac.uk/uuid/4878d1fcd0694c07a0dc08ceaccae9e1/ BADC website archive.]

			[[Image:environbaselinemonitoringvideo.jpg\|frameless\|center\|500px\|]]

	Box plots showing the distributions of ethane from Kirby Misperton (KM), Little Plumpton (LP), air above BGS boreholes (BH) and Auchencorth Moss (AM).		Box plots showing the distributions of ethane from Kirby Misperton (KM), Little Plumpton (LP), air above BGS boreholes (BH) and Auchencorth Moss (AM).
	~~figure8_boxplot~~
	~~figure9_boxplot~~		[[Image:environbaselinemonitoringvideo.jpg\|frameless\|center\|500px\|]][[Image:environbaselinemonitoringvideo.jpg\|frameless\|center\|500px\|]]

	[[category:Environmental baseline monitoring in the Fylde, Lancashire]]		[[category:Environmental baseline monitoring in the Fylde, Lancashire]]

Ajhil: /* Non-methane hydrocarbons results */

2026-05-12T10:15:29Z

Non-methane hydrocarbons results

← Older revision		Revision as of 11:15, 12 May 2026
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	Samples for hydrocarbon (C2 to C6) analysis were collected weekly in special canisters from both the Little Plumpton (Lancashire) and Kirby Misperton (Yorkshire) sites and returned to the WACL laboratory at the University of York’s [https://www.york.ac.uk/chemistry/research/wacl/ Wolfson Atmospheric Chemistry Laboratories.]		Samples for hydrocarbon (C2 to C6) analysis were collected weekly in special canisters from both the Little Plumpton (Lancashire) and Kirby Misperton (Yorkshire) sites and returned to the WACL laboratory at the University of York’s [https://www.york.ac.uk/chemistry/research/wacl/ Wolfson Atmospheric Chemistry Laboratories.]

	The plots in figures 8, 9 and 10 show the distribution of individual species (ethane, propane and benzene) at the Little Plumpton and Kirby Misperton sites, together with distributions from a site at Auchencorth Moss in Scotland and samples taken from air above BGS’s boreholes around Kirby Misperton. The dataset for hydrocarbons from 2016 is available on the BADC website archive.		The plots in figures 8, 9 and 10 show the distribution of individual species (ethane, propane and benzene) at the Little Plumpton and Kirby Misperton sites, together with distributions from a site at Auchencorth Moss in Scotland and samples taken from air above BGS’s boreholes around Kirby Misperton. The dataset for hydrocarbons from 2016 is available on the [https://catalogue.ceda.ac.uk/uuid/4878d1fcd0694c07a0dc08ceaccae9e1/ BADC website archive.]

	Box plots showing the distributions of ethane from Kirby Misperton (KM), Little Plumpton (LP), air above BGS boreholes (BH) and Auchencorth Moss (AM).		Box plots showing the distributions of ethane from Kirby Misperton (KM), Little Plumpton (LP), air above BGS boreholes (BH) and Auchencorth Moss (AM).

Ajhil: /* Non-methane hydrocarbons results */

2026-05-12T10:14:48Z

Non-methane hydrocarbons results

← Older revision		Revision as of 11:14, 12 May 2026
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	==Non-methane hydrocarbons results==		==Non-methane hydrocarbons results==
	Samples for hydrocarbon (C2 to C6) analysis were collected weekly in special canisters from both the Little Plumpton (Lancashire) and Kirby Misperton (Yorkshire) sites and returned to the WACL laboratory at the University of York’s Wolfson Atmospheric Chemistry Laboratories.		Samples for hydrocarbon (C2 to C6) analysis were collected weekly in special canisters from both the Little Plumpton (Lancashire) and Kirby Misperton (Yorkshire) sites and returned to the WACL laboratory at the University of York’s [https://www.york.ac.uk/chemistry/research/wacl/ Wolfson Atmospheric Chemistry Laboratories.]

	The plots in figures 8, 9 and 10 show the distribution of individual species (ethane, propane and benzene) at the Little Plumpton and Kirby Misperton sites, together with distributions from a site at Auchencorth Moss in Scotland and samples taken from air above BGS’s boreholes around Kirby Misperton. The dataset for hydrocarbons from 2016 is available on the BADC website archive.		The plots in figures 8, 9 and 10 show the distribution of individual species (ethane, propane and benzene) at the Little Plumpton and Kirby Misperton sites, together with distributions from a site at Auchencorth Moss in Scotland and samples taken from air above BGS’s boreholes around Kirby Misperton. The dataset for hydrocarbons from 2016 is available on the BADC website archive.

Ajhil: /* Air quality */

2026-05-12T10:13:44Z

Air quality

← Older revision		Revision as of 11:13, 12 May 2026
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	<center>'''Figure 5'''    Time series of Ozone (O3) concentrations. BGS © UKRI.</center>		<center>'''Figure 5'''    Time series of Ozone (O3) concentrations. BGS © UKRI.</center>
			<br>
	[[Image:TimeSeriesOfPMConcentrationsLancs.jpg\|frameless\|center\|500px\|]]		[[Image:TimeSeriesOfPMConcentrationsLancs.jpg\|frameless\|center\|500px\|]]

	<center>'''Figure 6'''    TimeSeriesOfNOConcentrationsLancs. BGS © UKRI.</center>		<center>'''Figure 6'''    TimeSeriesOfNOConcentrationsLancs. BGS © UKRI.</center>
			<br>
	[[Image:TimeSeriesOfPMConcentrationsYorks.jpg\|frameless\|center\|500px\|]]		[[Image:TimeSeriesOfPMConcentrationsYorks.jpg\|frameless\|center\|500px\|]]

Ajhil: /* Air quality */

2026-05-12T10:10:39Z

Air quality

← Older revision		Revision as of 11:10, 12 May 2026
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	Local influence can also be observed as spikes on the graphs. Further investigation is being carried out but a road running close to the site may be a contributory factor.		Local influence can also be observed as spikes on the graphs. Further investigation is being carried out but a road running close to the site may be a contributory factor.

	~~Time series of Ozone (O3) concentrations~~.		[[Image:TimeSeriesOfOzoneConcentrationsLancs.jpg\|frameless\|center\|500px\|]]
	~~TimeSeriesOfNOConcentrationsLancs~~
	~~TimeSeriesOfPMConcentrationsLancs~~

			<center>'''Figure 5'''    Time series of Ozone (O3) concentrations. BGS © UKRI.</center>

			[[Image:TimeSeriesOfPMConcentrationsLancs.jpg\|frameless\|center\|500px\|]]

			<center>'''Figure 6'''    TimeSeriesOfNOConcentrationsLancs. BGS © UKRI.</center>

			[[Image:TimeSeriesOfPMConcentrationsYorks.jpg\|frameless\|center\|500px\|]]

			<center>'''Figure 7'''    TimeSeriesOfPMConcentrationsLancs. BGS © UKRI.</center>

	==Measurement statistics==		==Measurement statistics==

Ajhil: /* Greenhouse gases */

2026-05-12T10:05:31Z

Greenhouse gases

← Older revision		Revision as of 11:05, 12 May 2026
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	Figure 4 shows a sample of the measured data in Figure 2 for CH4 and CO2 but for a 24-hour period. All measurements over a given hour of day for the dataset period are shown together. This gives an idea of when, during an average day, there were changes in concentration relative to the expected baseline. The bold line is the average for that hour of day and the shaded area is the 95 per cent confidence interval. The data shows that there are relative peaks in both the morning and afternoon, as is generally expected for these species.		Figure 4 shows a sample of the measured data in Figure 2 for CH4 and CO2 but for a 24-hour period. All measurements over a given hour of day for the dataset period are shown together. This gives an idea of when, during an average day, there were changes in concentration relative to the expected baseline. The bold line is the average for that hour of day and the shaded area is the 95 per cent confidence interval. The data shows that there are relative peaks in both the morning and afternoon, as is generally expected for these species.

	hourly–averaged data for a 24–hour period for CH4.		[[Image:fig2a_CH4_CO2.jpg\|frameless\|center\|500px\|]]
	hourly–averaged data for a 24–hour period for CO2.
			<center>'''Figure 4a'''    hourly–averaged data for a 24–hour period for CH4. BGS © UKRI.</center>
			<br>
			[[Image:fig2b_CH4_CO2.jpg\|frameless\|center\|500px\|]]

			<center>'''Figure 4b'''    hourly–averaged data for a 24–hour period for CO2. BGS © UKRI.</center>

	==Air quality==		==Air quality==

Ajhil: /* Greenhouse gases */

2026-05-12T10:02:47Z

Greenhouse gases

← Older revision		Revision as of 11:02, 12 May 2026
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	<center>'''Figure 3'''    Time series of carbon dioxide (grey) and methane (red) in units of ppm (December 2014 to March 2016). BGS © UKRI.</center>		<center>'''Figure 3'''    Time series of carbon dioxide (grey) and methane (red) in units of ppm (December 2014 to March 2016). BGS © UKRI.</center>
			<br>
	The elevated concentrations above the background represent a wide mix of pollutant sources upwind, both local and regional, that are being further investigated. It should be noted that the concentrations of greenhouse gases measured are not toxic or known to be hazardous to health.		The elevated concentrations above the background represent a wide mix of pollutant sources upwind, both local and regional, that are being further investigated. It should be noted that the concentrations of greenhouse gases measured are not toxic or known to be hazardous to health.

Ajhil: /* Greenhouse gases */

2026-05-12T10:02:06Z

Greenhouse gases

← Older revision		Revision as of 11:02, 12 May 2026
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	Greenhouse gas concentrations were measured from December 2014. A time series of the data is shown in Figure 3. A general correlation between CO2 and CH4 can be seen over the measurement period. There are clear periods of background where CO2 and CH4 concentrations appear relatively flat at around 400 parts per million (ppm) and 2 ppm respectively. These periods coincide with westerly winds and represent the relatively unpolluted air from the Atlantic. The periods of generally enhanced CO2 and CH4 (between 400 and 450 ppm and 2 and 4 ppm, respectively) are most often with moderate easterly and southerly winds. The short-term events (spikes on the graph) coincide most often with light south easterly and northerly wind directions.		Greenhouse gas concentrations were measured from December 2014. A time series of the data is shown in Figure 3. A general correlation between CO2 and CH4 can be seen over the measurement period. There are clear periods of background where CO2 and CH4 concentrations appear relatively flat at around 400 parts per million (ppm) and 2 ppm respectively. These periods coincide with westerly winds and represent the relatively unpolluted air from the Atlantic. The periods of generally enhanced CO2 and CH4 (between 400 and 450 ppm and 2 and 4 ppm, respectively) are most often with moderate easterly and southerly winds. The short-term events (spikes on the graph) coincide most often with light south easterly and northerly wind directions.

	~~Figure 3 Time series of carbon dioxide (grey) and methane (red) in units of ppm (December 2014 to March 2016). BGS © UKRI~~.		[[Image:plumptonCH4CO2.jpg\|frameless\|center\|500px\|]]

			<center>'''Figure 3'''    Time series of carbon dioxide (grey) and methane (red) in units of ppm (December 2014 to March 2016). BGS © UKRI.</center>

	The elevated concentrations above the background represent a wide mix of pollutant sources upwind, both local and regional, that are being further investigated. It should be noted that the concentrations of greenhouse gases measured are not toxic or known to be hazardous to health.		The elevated concentrations above the background represent a wide mix of pollutant sources upwind, both local and regional, that are being further investigated. It should be noted that the concentrations of greenhouse gases measured are not toxic or known to be hazardous to health.