Chilbolton Observatory Information

The monitoring station is located approximately 200m SE from the outskirts of Chilbolton Village, in arable farmland.

UK-AIR ID: UKA00614

EU Site ID: GB1055R

Altitude (metres): 78

Environment Type: Rural Background

Site Location

Environment Type: Rural Background

Site Address: Not available

Government Region: South East

Easting/Northing: 439390, 139078

Latitude/Longitude: 51.149617, -1.438228

The static map below shows where the monitoring site is located.

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» View this monitoring site on the interactive monitoring networks map

Partners

The Partners who operate networks at this monitoring sites are shown in the table below. Clicking on the Partner name will open their website in a new window.

Operator	Networks
National Physical Laboratory	Heavy Metals Network
Ricardo Energy & Environment	Automatic Hydrocarbon Monitoring Network
Ricardo Energy & Environment	MARGA network
Ricardo Energy & Environment	PAH Digitel (solid phase)
Ricardo Energy & Environment	PAH Deposition
National Physical Laboratory	Particulates
UK Centre for Ecology & Hydrology	TEKRAN (Mercury) Network
Bureau Veritas	Automatic Rural Monitoring Network
National Physical Laboratory	UK Black Carbon Network

Pollutants measured at this monitoring site

The pollutants measured at this monitoring site, grouped by network, are shown below. Use the links below to quickly jump to a specific network.

• Acid Gas and Aerosol Network
• Automatic Hydrocarbon Monitoring Network
• Automatic Rural Monitoring Network
• Daily rainfall EMEP
• EMEP Station Met data
• Heavy Metals Network
• MARGA network
• National Ammonia Monitoring Network
• PAH Deposition
• PAH Digitel (solid phase)
• Particulates
• TEKRAN (Mercury) Network
• UK Black Carbon Network
• UKEAP - Rural NO2 (NO2-Net)
• Weekly rainfall (LOW)

Acid Gas and Aerosol Network

Pollutant	Start Date	End Date	Inlet Height (m)
Particulate calcium	11/01/2016	-	1.5
Particulate chloride	11/01/2016	-	1.5
Particulate magnesium	11/01/2016	-	1.5
Particulate sodium	11/01/2016	-	1.5
Particulate nitrite	11/01/2016	-	1.5
Particulate nitrate	11/01/2016	-	1.5
Particulate sulphate	11/01/2016	-	1.5
Gaseous hydocloric acid	11/01/2016	11/01/2016	1.5
Gaseous nitric acid	11/01/2016	-	1.5
Gaseous nitrous acid	11/01/2016	-	1.5
Gaseous sulphur dioxide	11/01/2016	-	1.5

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Automatic Hydrocarbon Monitoring Network

Pollutant	Start Date	End Date	Inlet Height (m)
ethane	19/01/2016	-	6.0
ethene	19/01/2016	-	6.0
ethyne	19/01/2016	-	6.0
propane	19/01/2016	-	6.0
propene	19/01/2016	-	6.0
iso-butane	19/01/2016	-	6.0
n-butane	19/01/2016	-	6.0
1-butene	19/01/2016	-	6.0
trans-2-butene	19/01/2016	-	6.0
cis-2-butene	19/01/2016	-	6.0
iso-pentane	19/01/2016	-	6.0
n-pentane	19/01/2016	-	6.0
1,3-butadiene	19/01/2016	-	6.0
trans-2-pentene	19/01/2016	-	6.0
1-pentene	19/01/2016	-	6.0
2-methylpentane	19/01/2016	-	6.0
isoprene	19/01/2016	-	6.0
n-hexane	19/01/2016	-	6.0
n-heptane	19/01/2016	-	6.0
iso-octane	19/01/2016	-	6.0
n-octane	19/01/2016	-	6.0
benzene	19/01/2016	-	6.0
toluene	19/01/2016	-	6.0
ethylbenzene	19/01/2016	-	6.0
m+p-xylene	19/01/2016	-	6.0
o-xylene	19/01/2016	-	6.0
1,2,3-trimethylbenzene	19/01/2016	-	6.0
1,2,4-trimethylbenzene	19/01/2016	-	6.0
1,3,5-trimethylbenzene	19/01/2016	-	6.0

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Automatic Rural Monitoring Network

Pollutant	Start Date	End Date	Inlet Height (m)
Ozone	11/01/2016	-	5.5
Nitric oxide	11/01/2016	-	5.5
Nitrogen dioxide	11/01/2016	-	5.5
Nitrogen oxides as nitrogen dioxide	11/01/2016	-	5.5
Sulphur dioxide	11/01/2016	-	5.5
PM10 particulate matter (Hourly measured)	11/01/2016	-	5.5
Non-volatile PM10 (Hourly measured)	11/01/2016	24/07/2018	0.0
Volatile PM10 (Hourly measured)	11/01/2016	24/07/2018	0.0
PM2.5 particulate matter (Hourly measured)	11/01/2016	-	5.5
Non-volatile PM2.5 (Hourly measured)	11/01/2016	24/07/2018	0.0
Volatile PM2.5 (Hourly measured)	11/01/2016	24/07/2018	0.0
PM10 particulate matter (Daily measured)	11/01/2016	30/09/2016	6.0
PM2.5 particulate matter (Daily measured)	11/01/2016	30/09/2016	6.0
Modelled Wind Direction	11/01/2016	-	0.0
Modelled Wind Speed	11/01/2016	-	0.0
Modelled Temperature	11/01/2016	-	0.0
Wind Direction	11/01/2016	-	Not available
Wind Speed	11/01/2016	-	0.0
PM10 Ambient Temperature	11/01/2016	24/07/2018	0.0
PM10 Ambient pressure measured	11/01/2016	24/07/2018	0.0
PM2.5 Ambient Temperature	11/01/2016	24/07/2018	0.0
PM2.5 Ambient Preasure	11/01/2016	24/07/2018	0.0

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Daily rainfall EMEP

Pollutant	Start Date	End Date	Inlet Height (m)
Calcium in precipitation	11/01/2016	-	1.2
Chloride in precipitation	11/01/2016	-	1.2
Potassium in precipitation	11/01/2016	-	1.2
Magnesium in precipitation	11/01/2016	-	1.2
Sodium in precipitation	11/01/2016	-	1.2
Phosphate as P in precipitation	11/01/2016	-	1.2
Nitrate as N in precipitation	11/01/2016	-	1.2
Ammonium as N in precipitation	11/01/2016	-	1.2
Sulphate as S in precipitation	11/01/2016	-	1.2
Non-marine sulphate as S in precipitation	11/01/2016	-	1.2
Acidity in precipitation	11/01/2016	-	1.2
Conductivity	11/01/2016	-	1.2
pH in precipitation	11/01/2016	-	1.2
Rainfall	11/01/2016	-	1.2
Fluoride	11/01/2016	-	1.2

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EMEP Station Met data

Pollutant	Start Date	End Date	Inlet Height (m)
Wind Direction	11/01/2016	-	0.0
Wind Speed	11/01/2016	-	Not available
Ambient Temperature	11/01/2016	-	0.0
Barometric pressure	11/01/2016	-	0.0
Relative Humidity	11/01/2016	-	0.0
Rainfall	11/01/2016	-	0.0
Dew Point	11/01/2016	-	0.0

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Heavy Metals Network

Pollutant	Start Date	End Date	Inlet Height (m)
Arsenic	11/01/2016	-	2.2
Cadmium	11/01/2016	-	2.2
Chromium	11/01/2016	-	2.2
Cobalt	11/01/2016	-	2.2
Copper	11/01/2016	-	2.2
Iron	11/01/2016	-	2.2
Lead	11/01/2016	-	2.2
Manganese	11/01/2016	-	2.2
Nickel	11/01/2016	-	2.2
Selenium	11/01/2016	-	2.2
Vanadium	11/01/2016	-	2.2
Zinc	11/01/2016	-	2.2
Aluminium in precipitation	11/01/2016	-	1.3
Antinomy in precipitation	11/01/2016	-	1.3
Arsenic in precipitation	11/01/2016	-	1.3
Barium in precipitation	11/01/2016	-	1.3
Beryllium in precipitation	11/01/2016	-	1.3
Cadmium in precipitation	11/01/2016	-	1.3
Caesium in precipitation	11/01/2016	-	1.3
Chromium in precipitation	11/01/2016	-	1.3
Cobalt in precipitation	11/01/2016	-	1.3
Copper in precipitation	11/01/2016	-	1.3
Iron in precipitation	11/01/2016	-	1.3
Lead in precipitation	11/01/2016	-	1.3
Lithium in precipitation	11/01/2016	-	1.3
Manganese in precipitation	11/01/2016	-	1.3
Mercury in precipitation	11/01/2016	-	1.3
Molybdenum in precipitation	11/01/2016	-	1.3
Nickel in precipitation	11/01/2016	-	1.3
Rubidium in precipitation	11/01/2016	-	1.3
Selenium in precipitation	11/01/2016	-	1.3
Strontium in precipitation	11/01/2016	-	1.3
Tin in precipitation	11/01/2016	-	1.3
Titanium in precipitation	11/01/2016	-	1.3
Tungsten in precipitation	11/01/2016	-	1.3
Uranium in precipitation	11/01/2016	-	1.3
Vanadium in precipitation	11/01/2016	-	1.3
Zinc in precipitation	11/01/2016	-	1.3

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MARGA network

Pollutant	Start Date	End Date	Inlet Height (m)
calcium in PM10	27/01/2016	-	0.0
chloride in PM10	27/01/2016	-	0.0
potassium in PM10	27/01/2016	-	0.0
magnesium in PM10	27/01/2016	-	0.0
sodium in PM10	27/01/2016	-	0.0
ammonium in PM10	27/01/2016	-	0.0
nitrate in PM10	27/01/2016	-	0.0
sulphate in PM10	27/01/2016	-	0.0
calcium in PM2.5	27/01/2016	-	6.0
chloride in PM2.5	27/01/2016	-	6.0
potassium in PM2.5	27/01/2016	-	6.0
magnesium in PM2.5	27/01/2016	-	6.0
sodium in PM2.5	27/01/2016	-	6.0
ammonium in PM2.5	27/01/2016	-	6.0
nitrate in PM2.5	27/01/2016	-	6.0
sulphate in PM2.5	27/01/2016	-	6.0
gaseous hydrochloric acid	27/01/2016	-	0.0
gaseous nitrous acid	27/01/2016	-	0.0
gaseous nitric acid	27/01/2016	-	0.0
gaseous ammonia	27/01/2016	-	0.0
gaseous sulphur dioxide	27/01/2016	-	0.0

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National Ammonia Monitoring Network

Pollutant	Start Date	End Date	Inlet Height (m)
particulate ammonium	11/01/2016	-	1.5
gaseous ammonia (active)	11/01/2016	-	1.5
gaseous ammonia (passive)	01/01/2022	-	Not available

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PAH Deposition

Pollutant	Start Date	End Date	Inlet Height (m)
Benzo(a)pyrene	11/01/2016	-	1.6
Benzo(a)anthracene	11/01/2016	-	1.6
Benzo(b)fluoranthene	11/01/2016	-	1.6
Benzo(j)fluoranthene	11/01/2016	-	1.6
Benzo(b+j)fluoranthene	11/01/2016	20/07/2016	1.6
Benzo(k)fluoranthene	11/01/2016	-	1.6
Indeno(1,2,3-cd)pyrene	11/01/2016	-	1.6
Dibenzo(ac)anthracene	11/01/2016	-	1.6
Dibenzo(ah)anthracene	11/01/2016	-	1.6
Dibenzo(ah+ac)anthracene	11/01/2016	20/07/2016	1.6
1-Methyl anthracene	11/01/2016	22/05/2019	1.6
1-Methyl Naphthalene	11/01/2016	22/05/2019	1.6
1-Methyl phenanthrene	11/01/2016	22/05/2019	1.6
2-Methyl anthracene	11/01/2016	22/05/2019	1.6
2-Methyl Naphthalene	11/01/2016	22/05/2019	1.6
2-Methyl phenanthrene	11/01/2016	22/05/2019	1.6
4.5-Methylene phenanthrene	11/01/2016	22/05/2019	1.6
5-Methyl Chrysene	11/01/2016	-	1.6
9-Methyl anthracene	11/01/2016	22/05/2019	1.6
Acenaphthene	11/01/2016	22/05/2019	1.6
Acenaphthylene	11/01/2016	22/05/2019	1.6
Anthanthrene	11/01/2016	-	1.6
Anthracene	11/01/2016	-	1.6
Benzo(b)naphtho(2,1-d)thiophene	11/01/2016	-	1.6
Benzo(c)phenanthrene	11/01/2016	-	1.6
Benzo(e)pyrene	11/01/2016	-	1.6
Benzo(ghi)perylene	11/01/2016	-	1.6
Biphenyl	11/01/2016	22/05/2019	1.6
Cholanthrene	11/01/2016	22/05/2019	1.6
Chrysene	11/01/2016	-	1.6
Coronene	11/01/2016	-	1.6
Cyclopenta(c,d)pyrene	11/01/2016	-	1.6
Dibenzo(al)pyrene	11/01/2016	-	1.6
Dibenzo(ae)pyrene	11/01/2016	-	1.6
Dibenzo(ai)pyrene	11/01/2016	-	1.6
Dibenzo(ah)pyrene	11/01/2016	-	1.6
Fluoranthene	11/01/2016	-	1.6
Fluorene	11/01/2016	22/05/2019	1.6
Perylene	11/01/2016	-	1.6
Phenanthrene	11/01/2016	-	1.6
Pyrene	11/01/2016	-	1.6
Retene	11/01/2016	-	1.6
Naphthalene	11/01/2016	22/05/2019	1.6

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PAH Digitel (solid phase)

Pollutant	Start Date	End Date	Inlet Height (m)
Benzo(a)pyrene	11/01/2016	-	1.9
Benzo(a)anthracene	11/01/2016	-	1.9
Benzo(b)fluoranthene	11/01/2016	-	1.9
Benzo(j)fluoranthene	11/01/2016	-	1.9
Benzo(k)fluoranthene	11/01/2016	-	1.9
Indeno(1,2,3-cd)pyrene	11/01/2016	-	1.9
Dibenzo(ac)anthracene	11/01/2016	-	1.9
Dibenzo(ah)anthracene	11/01/2016	-	1.9
5-Methyl Chrysene	11/01/2016	-	1.9
Anthanthrene	11/01/2016	-	1.9
Anthracene	01/01/2021	-	1.9
Benzo(b)naphtho(2,1-d)thiophene	11/01/2016	-	1.9
Benzo(c)phenanthrene	11/01/2016	-	1.9
Benzo(e)pyrene	11/01/2016	-	1.9
Benzo(ghi)perylene	11/01/2016	-	1.9
Cholanthrene	01/07/2016	01/05/2019	1.9
Chrysene	11/01/2016	-	1.9
Coronene	11/01/2016	-	1.9
Cyclopenta(c,d)pyrene	11/01/2016	-	1.9
Dibenzo(al)pyrene	11/01/2016	-	1.9
Dibenzo(ae)pyrene	11/01/2016	-	1.9
Dibenzo(ai)pyrene	11/01/2016	-	1.9
Dibenzo(ah)pyrene	11/01/2016	-	1.9
Fluoranthene	01/01/2021	-	1.9
Perylene	11/01/2016	-	1.9
Phenanthrene	01/01/2021	-	1.9
Pyrene	01/01/2021	-	1.9
Retene	01/01/2021	-	1.9

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Particulates

Pollutant	Start Date	End Date	Inlet Height (m)
Total Number Concentration	11/01/2016	-	6.0
Particle Count 16.6 nm	11/01/2016	-	6.0
Particle Count 17.8 nm	11/01/2016	-	6.0
Particle Count 19.2 nm	11/01/2016	-	6.0
Particle Count 20.6 nm	11/01/2016	-	6.0
Particle Count 22.1 nm	11/01/2016	-	6.0
Particle Count 23.7 nm	11/01/2016	-	6.0
Particle Count 25.5 nm	11/01/2016	-	6.0
Particle Count 27.4 nm	11/01/2016	-	6.0
Particle Count 29.5 nm	11/01/2016	-	6.0
Particle Count 31.7 nm	11/01/2016	-	6.0
Particle Count 34 nm	11/01/2016	-	6.0
Particle Count 36.6 nm	11/01/2016	-	6.0
Particle Count 39.3 nm	11/01/2016	-	6.0
Particle Count 42.2 nm	11/01/2016	-	6.0
Particle Count 45.3 nm	11/01/2016	-	6.0
Particle Count 48.7 nm	11/01/2016	-	6.0
Particle Count 52.4 nm	11/01/2016	-	6.0
Particle Count 56.3 nm	11/01/2016	-	6.0
Particle Count 60.5 nm	11/01/2016	-	6.0
Particle Count 65 nm	11/01/2016	-	6.0
Particle Count 69.8 nm	11/01/2016	-	6.0
Particle Count 75.1 nm	11/01/2016	-	6.0
Particle Count 80.6 nm	11/01/2016	-	6.0
Particle Count 86.7 nm	11/01/2016	-	6.0
Particle Count 93.1 nm	11/01/2016	-	6.0
Particle Count 100 nm	11/01/2016	-	6.0
Particle Count 107.5 nm	11/01/2016	-	6.0
Particle Count 115.5 nm	11/01/2016	-	6.0
Particle Count 124.1 nm	11/01/2016	-	6.0
Particle Count 133.4 nm	11/01/2016	-	6.0
Particle Count 143.3 nm	11/01/2016	-	6.0
Particle Count 154 nm	11/01/2016	-	6.0
Particle Count 165.5 nm	11/01/2016	-	6.0
Particle Count 177.9 nm	11/01/2016	-	6.0
Particle Count 191.2 nm	11/01/2016	-	6.0
Particle Count 205.4 nm	11/01/2016	-	6.0
Particle Count 220.7 nm	11/01/2016	-	6.0
Particle Count 237.2 nm	11/01/2016	-	6.0
Particle Count 254.9 nm	11/01/2016	-	6.0
Particle Count 273.9 nm	11/01/2016	-	6.0
Particle Count 294.3 nm	11/01/2016	-	6.0
Particle Count 316.3 nm	11/01/2016	-	6.0
Particle Count 339.9 nm	11/01/2016	-	6.0
Particle Count 365.3 nm	11/01/2016	-	6.0
Particle Count 392.5 nm	11/01/2016	-	6.0
Particle Count 421.8 nm	11/01/2016	-	6.0
Particle Count 453.3 nm	11/01/2016	-	6.0
Particle Count 487.1 nm	11/01/2016	-	6.0
Particle Count 523.4 nm	11/01/2016	-	6.0
Particle Count 562.4 nm	11/01/2016	-	6.0
Particle Count 604.3 nm	11/01/2016	-	6.0
Elemental Carbon by transmittance-PM10	11/01/2016	29/10/2019	6.0
Organic Carbon by transmittance-PM10	11/01/2016	29/10/2019	6.0
Total Carbon-PM10	11/01/2016	29/10/2019	6.0
Elemental Carbon by transmittance-PM2.5	04/02/2016	-	6.0
Organic Carbon by transmittance-PM2.5	04/02/2016	-	6.0
Total Carbon-PM2.5	04/02/2016	-	6.0

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TEKRAN (Mercury) Network

Pollutant	Start Date	End Date	Inlet Height (m)
total gaseous mercury	11/01/2016	-	6.0
total gaseous mercury	11/01/2016	-	6.0

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UK Black Carbon Network

Pollutant	Start Date	End Date	Inlet Height (m)
Black Carbon (880nm)	11/01/2016	-	6.0
UV Particulate Matter (UV-BC)	11/01/2016	-	7.0
Infra Red Particulate matter (950nm)	22/11/2019	-	7.0
Red Particulate matter (660nm)	22/11/2019	-	7.0
Yellow Particulate matter (590nm)	22/11/2019	-	7.0
Green Particulate matter (520nm)	22/11/2019	-	7.0
Blue Particulate matter (470nm)	22/11/2019	-	7.0
UV Particulate Matter (370nm)	22/11/2019	-	7.0

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UKEAP - Rural NO2 (NO2-Net)

Pollutant	Start Date	End Date	Inlet Height (m)
Nitrogen dioxide	11/01/2016	-	1.2
Nitrogen dioxide (corrected)	08/01/2020	-	1.2

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Weekly rainfall (LOW)

Pollutant	Start Date	End Date	Inlet Height (m)
Calcium in precipitation	11/01/2016	-	1.5
Chloride in precipitation	11/01/2016	-	1.5
Potassium in precipitation	11/01/2016	-	1.5
Magnesium in precipitation	11/01/2016	-	1.5
Sodium in precipitation	11/01/2016	-	1.5
Phosphate as P in precipitation	11/01/2016	-	1.5
Nitrate as N in precipitation	11/01/2016	-	1.5
Ammonium as N in precipitation	11/01/2016	-	1.5
Sulphate as S in precipitation	11/01/2016	-	1.5
Non-marine sulphate as S in precipitation	11/01/2016	-	1.5
Acidity in precipitation	11/01/2016	-	1.5
Conductivity	11/01/2016	-	1.5
pH in precipitation	11/01/2016	-	1.5
Rainfall	11/01/2016	-	1.5
Fluoride	11/01/2016	04/04/2018	1.5

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Networks measured at this monitoring site

The listing below shows the networks that this monitoring site belongs to. You can search for sites within these networks by clicking on their name, or use the network information links to find out more about them.

Network	Search	Further Details	Get Data
Automatic Hydrocarbon Network	Automatic Hydrocarbon Network	About network	Data Selector
Automatic Urban and Rural Monitoring Network (AURN)	Automatic Urban and Rural Monitoring Network (AURN)	About network	Latest pollution summary Current Levels Pre-Formatted Data Files
Black Carbon	Black Carbon	About network	Data Selector
Heavy Metals	Heavy Metals	About network	Metals data download page Data Selector
PAH Deposition	PAH Deposition	About network	PAH data download page
PAH Digitel (solid phase)	PAH Digitel (solid phase)	About network	PAH data download page
Particle Size Composition	Particle Size Composition	About network	Particle Monitoring Data page Data Selector
Rural Automatic Mercury network	Rural Automatic Mercury network	About network	Data Selector
UKEAP: Acid Gases & Aerosol Network	UKEAP: Acid Gases & Aerosol Network	About network	CEH Website (External website) Data Selector
UKEAP: Historic Aerosol measurements	UKEAP: Historic Aerosol measurements	About network	CEH Website (External website)
UKEAP: MARGA Network	UKEAP: MARGA Network	About network	Data Selector
UKEAP: National Ammonia Monitoring Network	UKEAP: National Ammonia Monitoring Network	About network	CEH Website (External website) Data Selector
UKEAP: Precip-Net	UKEAP: Precip-Net	About network	CEH Website (External website) Data Selector
UKEAP: Precip-Net	UKEAP: Precip-Net	About network	CEH Website (External website)