BGS with a suite of partners including CEH, BAS and universities ran Tellus south-west in 2013. This was the first such survey which involved the traditional Tellus geophysical suite of acquisition and also high resolution lidar and also multispectral analysis. These were complemented by the G-BASE programme of systematic sampling and the determination of chemical elements in samples of stream sediment, stream water and soil in the region.
The Tellus approach is state of the art in terms of provision of baseline information and underpins the BGS core role in survey which is to provide a marker of the current state of the environment for the measurement and monitoring of future change.
In particular the G-BASE data allows us to assess the condition and health of soils and sediments for agricultural and ecosystem functions and quantify human impact on the environment, indicating elevated concentrations of potential harmful elements. Furthermore it permits the identification of new opportunities for the responsible use of natural resources.
I am pleased to announce the publication of the G-BASE data set for the south-west that will complement Tellus. Our staff have collected and analysed data from 3779 stream sediment, and 1154 soil samples in Cornwall and parts of Devon and Somerset. Analytical data are available for Ag, Al, As, Ba, Bi, Br, Ca, Cd, Ce, Cl, Co, Cr, Cs, Cu, Fe, Ga, Ge, Hf, I, In, K, La, Mg, Mn, Mo, Na, Nb, Nd, Ni, P, Pb, Rb, S, Sb, Sc, Se, Si, Sm, Sn, Sr, Ta, Te, Th, Ti, Tl, U, V, W, Y, Yb, Zn, and Zr and are part of another world class data set from the BGS.