Package 'openair'

46 importKCLAll PM10 statistics on the LondonAir web site, including the bulletins and statistical tools (and inthe RData objects downloaded using importKCL), now report PM10 results as reference equivalent.For PM10 measurements made by BAM and SM200 analysers the applicable correction factorshave been applied. For measurements from TEOM analysers the 1.3 factor has been applied up to1st 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 preferto use their own data. The data provide a an estimate of general meteorological conditions acrossGreater London. For meteorological species (wd, ws, rain, solar) each data point is formed byaveraging measurements from a subset of LAQN monitoring sites that have been identified as havingminimal disruption from local obstacles and a long term reliable dataset. The exact sites used variesbetween species, but include between two and five sites per species. Therefore, the data shouldrepresent ’London scale’ meteorology, rather than local conditions.While the function is being developed, the following site codes should help with selection. We willalso make available other meta data such as site type and location to make it easier to select sitesbased on other information. Note that these codes need to be refined because only the commonspecies 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