The importKCL
function has been written to make it
easy to import data from the King's College London air
pollution networks. KCL have provided .RData files (R
workspaces) of all individual sites and years for the KCL
networks. These files are updated on a weekly basis. This
approach requires a link to the Internet to work.There are several advantages over the web portal approach
where .csv files are downloaded. First, it is quick to
select a range of sites, pollutants and periods (see
examples below). Second, storing the data as .RData objects
is very efficient as they are about four times smaller than
.csv files --- which means the data downloads quickly and
saves bandwidth. Third, the function completely avoids any
need for data manipulation or setting time formats, time
zones etc. Finally, it is easy to import many years of data
beyond the current limit of about 64,000 lines. The final
point makes it possible to download several long time
series in one go. The function also has the advantage that
the proper site name is imported and used in openair
functions.
The site codes and pollutant names can be upper or lower
case. The function will issue a warning when data less than
six months old is downloaded, which may not be ratified.
The data are imported by stacking sites on top of one
another and will have field names date
, site
,
code
(the site code) and pollutant(s). Sometimes it
is useful to have columns of site data. This can be done
using the reshape
function --- see examples below.
The situation for particle measurements is not
straightforward given the variety of methods used to
measure particle mass and changes in their use over time.
The importKCL
function imports two measures of PM10
where available. PM10_raw
are TEOM measurements with
a 1.3 factor applied to take account of volatile losses.
The PM10
data is a current best estimate of a
gravimetric equivalent measure as described below. NOTE!
many sites have several instruments that measure PM10 or
PM2.5. In the case of FDMS measurements, these are given as
separate site codes (see below). For example "MY1" will be
TEOM with VCM applied and "MY7" is the FDMS data.
Where FDMS data are used the volatile and non-volatile
components are separately reported i.e. v10 = volatile
PM10, v2.5 = volatile PM2.5, nv10 = non-volatile PM10 and
nv2.5 = non-volatile PM2.5. Therefore, PM10 = v10 + nv10
and PM2.5 = v2.5 + nv2.5.
For the assessment of the EU Limit Values, PM10 needs to be
measured using the reference method or one shown to be
equivalent to the reference method. Defra carried out
extensive trials between 2004 and 2006 to establish which
types of particulate analysers in use in the UK were
equivalent. These trials found that measurements made using
Partisol, FDMS, BAM and SM200 instruments were shown to be
equivalent to the PM10 reference method. However,
correction factors need to be applied to measurements from
the SM200 and BAM instruments. Importantly, the TEOM was
demonstrated as not being equivalent to the reference
method due to the loss of volatile PM, even when the 1.3
correction factor was applied. The Volatile Correction
Model (VCM) was developed for Defra at King's to allow
measurements of PM10 from TEOM instruments to be converted
to reference equivalent; it uses the measurements of
volatile PM made using nearby FDMS instruments to correct
the measurements made by the TEOM. It passed the
equivalence testing using the same methodology used in the
Defra trials and is now the recommended method for
correcting TEOM measurements (Defra, 2009). VCM correction
of TEOM measurements can only be applied after 1st January
2004, when sufficiently widespread measurements of volatile
PM became available. The 1.3 correction factor is now
considered redundant for measurements of PM10 made after
1st January 2004. Further information on the VCM can be
found at http://www.volatile-correction-model.info/.
All PM10 statistics on the LondonAir web site, including
the bulletins and statistical tools (and in the RData
objects downloaded using importKCL
), now report PM10
results as reference equivalent. For PM10 measurements made
by BAM and SM200 analysers the applicable correction
factors have been applied. For measurements from TEOM
analysers the 1.3 factor has been applied up to 1st January
2004, then the VCM method has been used to convert to
reference equivalent.
The meteorological data are meant to represent 'typical'
conditions in London, but users may prefer to use their own
data. The data provide a an estimate of general
meteorological conditions across Greater London. For
meteorological species (wd, ws, rain, solar) each data
point is formed by averaging measurements from a subset of
LAQN monitoring sites that have been identified as having
minimal disruption from local obstacles and a long term
reliable dataset. The exact sites used varies between
species, but include between two and five sites per
species. Therefore, the data should represent 'London
scale' meteorology, rather than local conditions.
While the function is being developed, the following site
codes should help with selection. We will also make
available other meta data such as site type and location to
make it easier to select sites based on other information.
Note that these codes need to be refined because only the
common species are available for export currently i.e. NOx,
NO2, O3, CO, SO2, PM10, PM2.5.
- A30 | Kingston - Kingston Bypass A3 |
Roadside
- AD1 | Shoreham-by-Sea | Kerbside
- AR1 |
Chichester - Lodsworth | Rural
- AR2 | Wealden -
Isfield | Rural
- AS1 | Bath Aethalometer | Urban
Background
- BA1 | Basildon - Gloucester Park |
Roadside
- BB1 | Broxbourne (Roadside) | Roadside
- BE0 | Belfast - Carbon | Urban Background
- BE1 |
Belfast Centre AURN | Urban Background
- BE3 | Belfast
Centre Aethalometer | Urban Background
- BE7 | Belfast
Centre FDMS trial | Urban Background
- BE8 | Belfast -
Nitrate | Urban Background
- BE9 | Belfast - Partisol
SO4 | Urban Background
- BF1 | Bedford Stewartby
(Rural) | Industrial
- BF3 | Bedford - Kempston |
Industrial
- BF4 | Bedford - Prebend Street | Roadside
- BF5 | Bedford - Lurke Street | Roadside
- BG1 |
Barking and Dagenham - Rush Green | Suburban
- BG2 |
Barking and Dagenham - Scrattons Farm | Suburban
- BG3
| Barking and Dagenham - North Street | Kerbside
- BH0
| Brighton Preston Park AURN | Urban Background
- BH1 |
Brighton Roadside | Roadside
- BH2 | Brighton and Hove
- Hove Town Hall | Roadside
- BH3 | Brighton and Hove -
Foredown Tower | Urban Background
- BH5 | Brighton
Mobile (Preston Fire Station) | Roadside
- BH6 |
Brighton Mobile (Lewes Road) | Roadside
- BH7 |
Brighton Mobile (Gloucester Road) | Roadside
- BH8 |
Brighton and Hove - Stanmer Park | Rural
- BH9 |
Brighton Mobile Beaconsfield Road | Roadside
- BI1 |
Birmingham Tyburn CPC | Urban Background
- BL0 | Camden
- Bloomsbury | Urban Background
- BL1 | Bloomsbury AURN
SMPS | Urban Background
- BM1 | Ballymena - Ballykeel |
Suburban
- BM2 | Ballymena - North Road | Roadside
- BN1 | Barnet - Tally Ho Corner | Kerbside
- BN2 |
Barnet - Finchley | Urban Background
- BN3 | Barnet -
Strawberry Vale | Urban Background
- BO1 | Ballymoney 1
| Suburban
- BP0 | Westminster - Bridge Place | Urban
Background
- BQ5 | Bexley - Manor Road West Gravimetric
| Industrial
- BQ6 | Bexley - Manor Road East
Gravimetric | Industrial
- BQ7 | Belvedere West | Urban
Background
- BQ8 | Belvedere West FDMS | Urban
Background
- BT1 | Brent - Kingsbury | Suburban
- BT2 | Brent - Ikea Car Park | Roadside
- BT3 | Brent -
Harlesden | Roadside
- BT4 | Brent - Ikea | Roadside
- BT5 | Brent - Neasden Lane | Industrial
- BT6 |
Brent - John Keble Primary School | Roadside
- BT7 |
Brent - St Marys Primary School | Urban Background
- BW1 | Brentwood - Brentwood Town Hall | Urban Background
- BX0 | Bexley - Belvedere FDMS | Suburban
- BX1 |
Bexley - Slade Green | Suburban
- BX2 | Bexley -
Belvedere | Suburban
- BX3 | Bexley - Thamesmead |
Suburban
- BX4 | Bexley - Erith | Industrial
- BX5
| Bexley - Bedonwell | Suburban
- BX6 | Bexley - Thames
Road North FDMS | Roadside
- BX7 | Bexley - Thames Road
North | Roadside
- BX8 | Bexley - Thames Road South |
Roadside
- BX9 | Bexley - Slade Green FDMS | Suburban
- BY1 | Bromley - Rent Office | Urban Background
- BY4 | Bromley - Tweedy Rd | Roadside
- BY5 | Bromley -
Biggin Hill | Suburban
- BY7 | Bromley - Harwood Avenue
| Roadside
- CA1 | Crawley Background | Urban
Background
- CA2 | Crawley - Gatwick Airport | Urban
Background
- CB1 | Chelmsford - Fire Station | Roadside
- CB2 | Chelmsford - Springfield Road | Roadside
- CB3 | Chelmsford - Chignal St James | Urban Background
- CB4 | Chelmsford - Baddow Road | Roadside
- CC1 |
Colchester - Lucy Lane South | Roadside
- CC2 |
Colchester - Brook Street | Roadside
- CC3 | Colchester
- Mersea Road | Roadside
- CD1 | Camden - Swiss Cottage
| Kerbside
- CD3 | Camden - Shaftesbury Avenue |
Roadside
- CD4 | Camden - St Martins College (NOX 1) |
Urban Background
- CD5 | Camden - St Martins College
(NOX 2) | Urban Background
- CD7 | Camden - Swiss
Cottage Partisol | Kerbside
- CD9 | Camden - Euston
Road | Roadside
- CF1 | Cardiff Aethalometer | Urban
Background
- CH1 | Cheltenham | Urban Background
- CI1 | Chichester - A27 Chichester Bypass | Roadside
- CI4 | Chichester - Orchard Street | Roadside
- CK1 |
Cookstown | Suburban
- CP1 | Castle Point - Canvey
Island | Urban Background
- CR2 | Croydon - Purley Way
| Roadside
- CR3 | Croydon - Thornton Heath | Suburban
- CR4 | Croydon - George Street | Roadside
- CR5 |
Croydon - Norbury | Kerbside
- CR6 | Croydon - Euston
Road | Suburban
- CT1 | City of London - Senator House
| Urban Background
- CT2 | City of London - Farringdon
Street | Kerbside
- CT3 | City of London - Sir John
Cass School | Urban Background
- CT4 | City of London -
Beech Street | Roadside
- CT6 | City of London -
Walbrook Wharf | Roadside
- CT8 | City of London -
Upper Thames Street | Roadside
- CY1 | Crystal Palace -
Crystal Palace Parade | Roadside
- DC1 | Dacorum 1
Hemel Hempstead (Background) | Urban Background
- DC2 |
Dacorum 2 Hemel Hempstead (Background) | Urban Background
- DC3 | High Street Northchurch | Roadside
- DE1 |
Derry City - Brandywell | Urban Background
- DE2 |
Derry City - Dales Corner | Roadside
- DM1 | Dunmurry
Aethalometer | Urban Background
- EA0 | Ealing - Acton
Town Hall FDMS | Roadside
- EA1 | Ealing - Ealing Town
Hall | Urban Background
- EA2 | Ealing - Acton Town
Hall | Roadside
- EA3 | Ealing 3 - A40 East Acton |
Roadside
- EA4 | Ealing Mobile - Hamilton Road |
Roadside
- EA5 | Ealing Mobile - Southall | Roadside
- EA6 | Ealing - Hanger Lane Gyratory | Roadside
- EA7 | Ealing - Southall | Urban Background
- EA8 |
Ealing - Horn Lane | Industrial
- EA9 | Ealing - Court
Way | Roadside
- EB1 | Eastbourne - Devonshire Park |
Urban Background
- EB3 | Eastbourne - Holly Place |
Urban Background
- EH1 | E Herts Throcking (Rural) |
Rural
- EH2 | East Herts Sawbridgeworth (Background) |
Urban Background
- EH3 | East Herts Sawbridgeworth
(Roadside) | Roadside
- EH4 | East Herts Ware |
Roadside
- EH5 | East Herts Bishops Stortford |
Roadside
- EI0 | Ealing - Greenford | Urban Background
- EI1 | Ealing - Western Avenue | Roadside
- EL1 |
Elmbridge - Bell Farm Hersham | Urban Background
- EL2
| Elmbridge - Esher High Street | Roadside
- EL3 |
Elmbridge - Hampton Court Parade | Roadside
- EL4 |
Elmbridge - Walton High Street | Kerbside
- EN1 |
Enfield - Bushhill Park | Suburban
- EN2 | Enfield -
Church Street | Roadside
- EN3 | Enfield - Salisbury
School | Urban Background
- EN4 | Enfield - Derby Road
| Roadside
- EN5 | Enfield - Bowes Primary School |
Roadside
- FB1 | Rushmoor - Medway Drive | Roadside
- GB0 | Greenwich and Bexley - Falconwood FDMS |
Roadside
- GB6 | Greenwich and Bexley - Falconwood |
Roadside
- GL1 | Glasgow Centre | Suburban
- GL4 |
Glasgow Centre Aethalometer | Suburban
- GN0 |
Greenwich - A206 Burrage Grove | Roadside
- GN2 |
Greenwich - Millennium Village | Industrial
- GN3 |
Greenwich - Plumstead High Street | Roadside
- GN4 |
Greenwich - Fiveways Sidcup Rd A20 | Roadside
- GR4 |
Greenwich - Eltham | Suburban
- GR5 | Greenwich -
Trafalgar Road | Roadside
- GR7 | Greenwich -
Blackheath | Roadside
- GR8 | Greenwich - Woolwich
Flyover | Roadside
- GR9 | Greenwich - Westhorne Avenue
| Roadside
- HA0 | Harwell - Carbon | Rural
- HA1 |
Harwell Rural AURN | Rural
- HA2 | Harwell Rural
PARTISOL | Rural
- HA4 | Harwell Rural SMPS | Rural
- HA9 | Harwell - Partisol SO4 | Urban Background
- HF1 | Hammersmith and Fulham - Broadway | Roadside
- HF2 | Hammersmith and Fulham - Brook Green | Urban
Background
- HF3 | Hammersmith and Fulham - Scrubs Lane
| Kerbside
- HG1 | Haringey - Haringey Town Hall |
Roadside
- HG2 | Haringey - Priory Park | Urban
Background
- HG3 | Haringey - Bounds Green | Roadside
- HI0 | Hillingdon - Sipson Road | Suburban
- HI1 |
Hillingdon - South Ruislip | Roadside
- HI2 |
Hillingdon - Hillingdon Hospital | Roadside
- HI3 |
Hillingdon - Oxford Avenue | Roadside
- HK4 | Hackney -
Clapton | Urban Background
- HK6 | Hackney - Old Street
| Roadside
- HL1 | Halifax Aethalometer | Urban
Background
- HM1 | Hertsmere Borehamwood 1 (Background)
| Urban Background
- HM4 | Hertsmere - Borehamwood |
Urban Background
- HO1 | Horsham Background | Urban
Background
- HO2 | Horsham - Park Way | Roadside
- HO4 | Horsham - Storrington | Roadside
- HO5 | Horsham
- Cowfold | Roadside
- HR1 | Harrow - Stanmore | Urban
Background
- HR2 | Harrow - Pinner Road | Roadside
- HS1 | Hounslow - Brentford | Roadside
- HS2 |
Hounslow - Cranford | Suburban
- HS3 | Hounslow -
Brentford | Roadside
- HS4 | Hounslow - Chiswick High
Road | Roadside
- HS5 | Hounslow - Brentford | Roadside
- HS6 | Hounslow - Heston Road | Roadside
- HS7 |
Hounslow - Hatton Cross | Urban Background
- HS9 |
Hounslow - Feltham | Roadside
- HT1 | Hastings -
Bulverhythe | Roadside
- HT2 | Hastings - Fresh Fields
| Roadside
- HV1 | Havering - Rainham | Roadside
- HV2 | Havering - Harold Hill | Suburban
- HV3 |
Havering - Romford | Roadside
- HX0 | Birmingham Tyburn
Aethalometer | Urban Background
- IC6 | City of London
- Walbrook Wharf Indoor | Roadside
- IG4 | Greenwich -
Eltham Ecology Centre Indoor | Urban Background
- IS1 |
Islington - Upper Street | Urban Background
- IS2 |
Islington - Holloway Road | Roadside
- IS4 | Islington
- Foxham Gardens | Urban Background
- IS5 | Islington -
Duncan Terrace | Roadside
- IS6 | Islington - Arsenal |
Urban Background
- IT2 | Tower Hamlets - Mile End Road
| Roadside
- KB1 | South Kirkby Aethalometer | Urban
Background
- KC0 | North Kensington - Carbon | Urban
Background
- KC1 | Kensington and Chelsea - North Ken |
Urban Background
- KC2 | Kensington and Chelsea -
Cromwell Road | Roadside
- KC3 | Kensington and Chelsea
- Knightsbridge | Roadside
- KC4 | Kensington and
Chelsea - Kings Road | Roadside
- KC5 | Kensington and
Chelsea - Earls Court Rd | Kerbside
- KC7 | Kensington
and Chelsea - North Ken FDMS | Urban Background
- KC9 |
North Kensington - Partisol SO4 | Urban Background
- KT1 | Kingston - Chessington | Suburban
- KT2 |
Kingston - Town Centre | Roadside
- LA1 | Luton Airport
| Urban Background
- LB1 | Lambeth - Christchurch Road
| Roadside
- LB2 | Lambeth - Vauxhall Cross | Roadside
- LB3 | Lambeth - Loughborough Junct | Urban Background
- LB4 | Lambeth - Brixton Road | Kerbside
- LB5 |
Lambeth - Bondway Interchange | Roadside
- LB6 |
Lambeth - Streatham Green | Urban Background
- LBG |
London Mean Background | Urban Background
- LH0 |
Hillingdon - Harlington | Urban Background
- LH2 |
Heathrow Airport | Urban Background
- LL1 | Lullington
Heath Rural AURN | Rural
- LN1 | Luton - Challney
Community College | Urban Background
- LRS | London
Mean Roadside | Roadside
- LS1 | Lewes - Telscombe
Cliffs | Roadside
- LS2 | Lewes - Commercial Square |
Roadside
- LS4 | Newhaven - Denton School | Urban
Background
- LW1 | Lewisham - Catford | Urban
Background
- LW2 | Lewisham - New Cross | Roadside
- LW3 | Lewisham - Mercury Way | Industrial
- MA1 |
Manchester Piccadilly CPC | Urban Background
- MA2 |
Manchester Piccadilly | Urban Background
- MD1 | Mid
Beds Biggleswade (Roadside) | Roadside
- MD2 | Mid Beds
Silsoe (Rural) | Rural
- MD3 | Central Beds - Sandy |
Roadside
- MD4 | Central Beds - Marston Vale | Rural
- ME1 | Merton - Morden Civic Centre | Roadside
- MP1 | Marchwood Power - Marchwood | Industrial
- MP2 |
Marchwood Power - Millbrook Rd Soton | Industrial
- MR3
| Marylebone Road Aethalometer | Kerbside
- MV1 | Mole
Valley - Leatherhead | Rural
- MV2 | Mole Valley -
Lower Ashtead | Suburban
- MV3 | Mole Valley - Dorking
| Urban Background
- MW1 | Windsor and Maidenhead -
Frascati Way | Roadside
- MW2 | Windsor and Maidenhead
- Clarence Road | Roadside
- MW3 | Windsor and
Maidenhead - Ascot | Rural
- MY0 | Marylebone Road -
Carbon | Kerbside
- MY1 | Westminster - Marylebone Road
| Kerbside
- MY7 | Westminster - Marylebone Road FDMS |
Kerbside
- NA5 | Newtownabbey- Mallusk | Urban
Background
- NA6 | Newtownabbey- Shore Road | Roadside
- NE2 | Port Talbot TEOM and CPC | Urban Background
- NF1 | New Forest - Holbury | Industrial
- NF2 |
New Forest - Fawley | Industrial
- NF3 | New Forest -
Ringwood | Urban Background
- NF4 | New Forest - Totton
| Roadside
- NF5 | New Forest - Lyndhurst | Roadside
- NH1 | North Herts Mobile - Baldock 1 | Roadside
- NH2 | North Herts Mobile - Baldock 2 | Roadside
- NH3 |
North Herts Mobile - Royston | Urban Background
- NH4 |
North Herts - Breechwood Green | Urban Background
- NH5
| North Herts - Baldock Roadside | Roadside
- NH6 |
North Herts - Hitchin Library | Roadside
- NK1 | North
Kensington - CPC | Urban Background
- NK3 | North
Kensington Aethalometer | Urban Background
- NK6 |
North Kensington - URG | Urban Background
- NM1 |
Newham - Tant Avenue | Urban Background
- NM2 | Newham
- Cam Road | Roadside
- NM3 | Newham - Wren Close |
Urban Background
- NW1 | Norwich Centre Aethalometer |
Urban Background
- OX0 | Oxford Centre Roadside AURN |
Urban Background
- OX1 | South Oxfordshire - Henley |
Roadside
- OX2 | South Oxfordshire - Wallingford |
Roadside
- OX3 | South Oxfordshire - Watlington |
Roadside
- OX4 | Oxford St Ebbes AURN | Urban
Background
- PO1 | Portsmouth Background AURN | Urban
Background
- PT6 | Port Talbot Dyffryn School |
Industrial
- RB1 | Redbridge - Perth Terrace | Urban
Background
- RB2 | Redbridge - Ilford Broadway |
Kerbside
- RB3 | Redbridge - Fullwell Cross | Kerbside
- RB4 | Redbridge - Gardner Close | Roadside
- RB5
| Redbridge - South Woodford | Roadside
- RD0 | Reading
AURN - New Town | Urban Background
- RD1 | Reading -
Caversham Road | Roadside
- RD2 | Reading - Kings Road
| Roadside
- RD3 | Reading - Oxford Road | Roadside
- RG1 | Reigate and Banstead - Horley | Suburban
- RG2 | Reigate and Banstead - Horley South | Suburban
- RG3 | Reigate and Banstead - Poles Lane | Rural
- RG4 |
Reigate and Banstead - Reigate High St | Kerbside
- RHA
| Richmond - Lower Mortlake Road | Roadside
- RHB |
Richmond - Lower Mortlake Road | Roadside
- RI1 |
Richmond - Castelnau | Roadside
- RI2 | Richmond -
Barnes Wetlands | Suburban
- RI5 | Richmond Mobile - St
Margarets | Kerbside
- RI6 | Richmond Mobile - St
Margarets | Kerbside
- RI7 | Richmond Mobile - Richmond
Park | Suburban
- RI8 | Richmond Mobile - Richmond Park
| Suburban
- RIA | Richmond Mobile - George Street |
Kerbside
- RIB | Richmond Mobile - George Street |
Kerbside
- RIC | Richmond Mobile - Kew Rd | Kerbside
- RID | Richmond Mobile - Kew Rd | Kerbside
- RIE |
Richmond Mobile - Richmond Rd Twickenham | Roadside
- RIF | Richmond Mobile - Richmond Rd Twickenham | Roadside
- RIG | Richmond Mobile - Upper Teddington Rd |
Roadside
- RIH | Richmond Mobile - Upper Teddington Rd
| Roadside
- RII | Richmond Mobile - Somerset Rd
Teddington | Urban Background
- RIJ | Richmond Mobile -
Somerset Rd Teddington | Urban Background
- RIK |
Richmond Mobile - St. Margarets Grove | Urban Background
- RIL | Richmond Mobile - St. Margarets Grove | Urban
Background
- RIM | Richmond Mobile - Petersham Rd Ham |
Roadside
- RIN | Richmond Mobile - Petersham Rd Ham |
Roadside
- RIO | Richmond Mobile - Stanley Rd
Twickenham | Roadside
- RIP | Richmond Mobile - Stanley
Rd Twickenham | Roadside
- RIQ | Richmond Mobile -
Richmond Rd Twickenham | Roadside
- RIR | Richmond
Mobile - Richmond Rd Twickenham | Roadside
- RIS |
Richmond Mobile - Lincoln Ave Twickenham | Roadside
- RIU | Richmond Mobile - Mortlake Rd Kew | Roadside
- RIW | Richmond - Upper Teddington Road | Roadside
- RIY
| Richmond - Hampton Court Road | Kerbside
- RO1 |
Rochford - Rayleigh High Street | Roadside
- RY1 |
Rother - Rye Harbour | Rural
- RY2 | Rother - De La
Warr Road | Roadside
- SA1 | St Albans - Fleetville |
Urban Background
- SB1 | South Beds - Dunstable | Urban
Background
- SBG | Sussex Mean Background | Urban
Background
- SC1 | Sevenoaks 1 | Suburban
- SD1 |
Southend-on-Sea AURN | Urban Background
- SE1 |
Stevenage - Lytton Way | Roadside
- SH1 | Southampton
Background AURN | Urban Background
- SH2 | Southampton
- Redbridge | Roadside
- SH3 | Southampton - Onslow
Road | Roadside
- SH4 | Southampton - Bitterne | Urban
Background
- SK1 | Southwark - Larcom Street | Urban
Background
- SK2 | Southwark - Old Kent Road | Roadside
- SK5 | Southwark - A2 Old Kent Road | Roadside
- SL1 | Sunderland Aethalometer | Urban Background
- SRS
| Sussex Mean Roadside | Roadside
- ST1 | Sutton -
Robin Hood School | Roadside
- ST2 | Sutton - North
Cheam | Urban Background
- ST3 | Sutton - Carshalton |
Suburban
- ST4 | Sutton - Wallington | Kerbside
- ST5 | Sutton - Beddington Lane | Industrial
- ST6 |
Sutton - Worcester Park | Kerbside
- ST7 | Sutton -
Therapia Lane | Industrial
- SU1 | Sussex Mobile10
Stockbridge | Kerbside
- SU2 | Sussex Mobile11 Jct
Whitley Rd | Kerbside
- SU3 | Sussex Mobile12 Cowfold |
Kerbside
- SU4 | Sussex Mobile 13 Newhaven | Roadside
- SU5 | Sussex Mobile 14 Crawley | Roadside
- SU6 |
Sussex Mobile15 Chichester County Hall | Urban Background
- SU7 | Sussex Mobile 16 Warnham | Rural
- SU8 |
Sussex Mobile 17 Newhaven Paradise Park | Roadside
- SX1 | Sussex Mobile 1 | Urban Background
- SX2 | Sussex
Mobile 2 North Berstead | Roadside
- SX3 | Sussex
Mobile 3 | Roadside
- SX4 | Sussex Mobile 4 Adur |
Roadside
- SX5 | Sussex Mobile 5 Fresh Fields Rd
Hastings | Roadside
- SX6 | Sussex Mobile 6 Orchard St
Chichester | Roadside
- SX7 | Sussex Mobile 7 New Road
Newhaven | Roadside
- SX8 | Sussex Mobile 8 Arundel |
Kerbside
- SX9 | Sussex Mobile 9 Newhaven Kerbside |
Kerbside
- TD0 | Richmond - National Physical
Laboratory | Suburban
- TE0 | Tendring St Osyth AURN |
Rural
- TE1 | Tendring - Town Hall | Roadside
- TH1
| Tower Hamlets - Poplar | Urban Background
- TH2 |
Tower Hamlets - Mile End Road | Roadside
- TH3 | Tower
Hamlets - Bethnal Green | Urban Background
- TH4 |
Tower Hamlets - Blackwall | Roadside
- TK1 | Thurrock -
London Road (Grays) | Urban Background
- TK2 | Thurrock
- Purfleet | Roadside
- TK3 | Thurrock -
Stanford-le-Hope | Roadside
- TK8 | Thurrock - London
Road (Purfleet) | Roadside
- TR1 | Three Rivers -
Rickmansworth | Urban Background
- UT1 | Uttlesford -
Saffron Walden Fire Station | Roadside
- UT2 |
Uttlesford - Takeley | Urban Background
- UT3 |
Uttlesford - Broxted Farm | Rural
- VS1 | Westminster -
Victoria Street | Kerbside
- WA1 | Wandsworth - Garratt
Lane | Roadside
- WA2 | Wandsworth - Town Hall | Urban
Background
- WA3 | Wandsworth - Roehampton | Rural
- WA4 | Wandsworth - High Street | Roadside
- WA6 |
Wandsworth - Tooting | Roadside
- WA7 | Wandsworth -
Putney High Street | Kerbside
- WA8 | Wandsworth -
Putney High Street Facade | Roadside
- WA9 | Wandsworth
- Putney | Urban Background
- WE0 | Kensington and
Chelsea - Pembroke Road | Urban Background
- WF1 |
Watford (Roadside) | Roadside
- WF2 | Watford - Watford
Town Hall | Roadside
- WH1 | Welwyn Hatfield - Council
Offices | Urban Background
- WL1 | Waltham Forest -
Dawlish Road | Urban Background
- WL2 | Waltham Forest
- Mobile | Roadside
- WL3 | Waltham Forest - Chingford
| Roadside
- WL4 | Waltham Forest - Crooked Billet |
Kerbside
- WL5 | Waltham Forest - Leyton | Roadside
- WM0 | Westminster - Horseferry Road | Urban
Background
- WM3 | Westminster - Hyde Park Partisol |
Roadside
- WM4 | Westminster - Charing Cross Library |
Roadside
- WM5 | Westminster - Covent Garden | Urban
Background
- WM6 | Westminster - Oxford St | Kerbside
- WR1 | Bradford Town Hall Aethalometer | Urban
Background
- WT1 | Worthing - Grove Lodge | Kerbside
- XB1 | Bletchley | Rural
- XS1 | Shukri Outdoor |
Industrial
- XS2 | Shukri Indoor | Industrial
- XS3
| Osiris mobile | Urban Background
- YH1 | Harrogate
Roadside | Roadside
- ZA1 | Ashford Rural - Pluckley |
Rural
- ZA2 | Ashford Roadside | Roadside
- ZA3 |
Ashford Background | Urban Background
- ZA4 | Ashford
M20 Background | Urban Background
- ZC1 | Chatham
Roadside - A2 | Roadside
- ZD1 | Dover Roadside - Town
Hall | Roadside
- ZD2 | Dover Roadside - Townwall
Street | Roadside
- ZD3 | Dover Background - Langdon
Cliff | Urban Background
- ZD4 | Dover Background -
East Cliff | Urban Background
- ZD5 | Dover Coast Guard
Met | Urban Background
- ZD6 | Dover Docks | Industrial
- ZF1 | Folkestone Suburban - Cheriton | Suburban
- ZG1 | Gravesham Backgrnd - Northfleet | Urban Background
- ZG2 | Gravesham Roadside - A2 | Roadside
- ZG3 |
Gravesham Ind Bgd - Northfleet | Urban Background
- ZH1
| Thanet Rural - Minster | Rural
- ZH2 | Thanet
Background - Margate | Urban Background
- ZH3 | Thanet
Airport - Manston | Urban Background
- ZH4 | Thanet
Roadside - Ramsgate | Roadside
- ZL1 | Luton Background
| Urban Background
- ZM1 | Maidstone Meteorological |
Urban Background
- ZM2 | Maidstone Roadside -
Fairmeadow | Kerbside
- ZM3 | Maidstone Rural - Detling
| Rural
- ZR1 | Dartford Roadside - St Clements |
Kerbside
- ZR2 | Dartford Roadside 2 - Town Centre |
Roadside
- ZR3 | Dartford Roadside 3 - Bean Interchange
| Roadside
- ZS1 | Stoke Rural AURN | Rural
- ZT1 |
Tonbridge Roadside - Town Centre | Roadside
- ZT2 |
Tunbridge Wells Background - Town Hall | Urban Background
- ZT3 | Tunbridge Wells Rural - Southborough | Rural
- ZT4 | Tunbridge Wells Roadside - St Johns | Roadside
- ZT5 | Tonbridge Roadside 2 - High St | Roadside
- ZV1 | Sevenoaks - Greatness Park | Urban Background
- ZV2 | Sevenoaks - Bat and Ball | Roadside
- ZW1 | Swale
Roadside - Ospringe A2 | Roadside
- ZW2 | Swale
Background - Sheerness | Urban Background
- ZW3 | Swale
Roadside 2 - Ospringe Street | Roadside
- ZY1 |
Canterbury Backgrnd - Chaucer TS | Urban Background
- ZY2 | Canterbury Roadside - St Dunstans | Roadside
- ZY4 | Canterbury St Peters Place | Roadside