Are the Birch Trees in Southern England a Source of Betula Pollen for North London?

Birch pollen is highly allergenic. Knowledge of daily variations, atmospheric transport and source areas of birch pollen is important for exposure studies and for warnings to the public, especially for large cities such as London. Our results show that broad-leaved forests with high birch tree densities are located to the south and west of London. Bi-hourly Betula pollen concentrations for all the days included in the study, and for all available days with high birch pollen counts (daily average birch pollen counts >80 grains/m3), show that, on average, there is a peak between 1400 hours and 1600 hours. Back-trajectory analysis showed that, on days with high birch pollen counts (n=60), 80% of air masses arriving at the time of peak diurnal birch pollen count approached North London from the south in a 180 degree arc from due east to due west. Detailed investigations of three Betula pollen episodes, with distinctly different diurnal patterns compared to the mean daily cycle, were used to illustrate how night-time maxima (2200–0400 hours) in Betula pollen counts could be the result of transport from distant sources or long transport times caused by slow moving air masses. We conclude that the Betula pollen recorded in North London could originate from sources found to the west and south of the city and not just trees within London itself. Possible sources outside the city include Continental Europe and the Betula trees within the broad-leaved forests of Southern England.

'Team GB', 'Team England' or 'Team Scotland'? Media Representations of 'Britishness', 'Englishness' and 'Scottishness' in London 2012 and Glasgow 2014

Given the timing of the Scottish independence referendum in September 2014, the hosting of both the London 2012 Olympic Games and the Glasgow 2014 Commonwealth Games coincided with a period of considerable political turmoil and reflection within the United Kingdom. The extensive levels of public, political and media scrutiny of both of these major sporting events can therefore be framed within a wider consideration of the contemporary dynamics of the political union between the constituent nations of the UK, as well as the multifarious forms of national identities expressed within the various regions of the ‘nation-state’. Despite the growing influence of social media forms within contemporary society, politics and sport within the UK, the ‘traditional’ print media retain a central (although arguably diminishing) role in the dissemination of information relating to major societal, political and sporting issues to the British public. This paper will therefore critically reflect upon the nature of print media representations of ‘Britishness’, ‘Englishness’ and ‘Scottishness’ at London 2012 and Glasgow 2014 from both London-based and Scotland-based publications, drawing upon empirical data from completed and ongoing doctoral theses from the respective authors. In particular, the implications of the contrasting competitive structures of each event will be considered, given the symbolic differences between the unitary ‘Team GB’ at the London 2012 Olympics and the separated representative teams for Scotland and England at the Glasgow 2014 Commonwealth Games.