VOC emission rates over London and South East England obtained by airborne eddy covariance

Eddy covariance VOC emission and deposition fluxes above grassland using PTR-TOF.

Eddy covariance (EC) is the preferable technique for flux measurements since it is the only direct flux determination method. It requires a continuum of high time resolution measurements (e.g. 5-20 Hz). For volatile organic compounds (VOC) soft ionization via proton transfer reaction has proven to be a quantitative method for real time mass spectrometry; here we use a proton transfer reaction t...

Eddy Covariance Measurements over Grasslands

In this chapter we first provide a historic overview of – and outline some of the peculiarities associated with – grassland eddy covariance flux measurements, elaborate on the additional terms that need to be quantified when estimating the grassland net ecosystem carbon balance and finally discuss some of the challenges associated with upcoming nitrous oxide and methane flux measurements in man...

South East London Cancer Network

South East London: Sustainability and Transformation Plan

Socioeconomic deprivation, ethnicity, and stroke mortality in Greater London and south east England.

OBJECTIVE AND SETTING To examine geographical variation in stroke mortality in Greater London compared with the surrounding South East Region of England. DESIGN Cross sectional, ecological analysis based on electoral wards. SUBJECTS Resident population aged 45 years or more. MAIN OUTCOME MEASURE Age specific stroke mortality rates in five age bands, 1986-92. MAIN OUTCOME MEASURE Age spe...