The chemical composition of sediments from the Arctic mountain Lake Bolshoy Vudjavr, situated in western part Russian zone, was studied. lake has been under intense anthropogenic load for more than 90 years since development richest apatite–nepheline deposits world started. A 27 cm thick sediment core sampled central at maximum depth 37.4 m. concentrations 50 elements were analyzed by mass spec...

This paper summarizes the historical events from the identification of the Yucca Mountain site in southern Nevada in 1978 to its selection by the US Congress as the sole site to characterize for a repository for spent nuclear fuel and high-level radioactive waste in 1987. Coincident with this selection process and later site characterization, the US spent from 1977 to 2009 establishing long-ter...

BACKGROUND Psychotic episodes during exposure to very high or extreme altitude have been frequently reported in mountain literature, but not systematically analysed and acknowledged as a distinct clinical entity. METHODS Episodes reported above 3500 m altitude with possible psychosis were collected from the lay literature and provide the basis for this observational study. Dimensional criteri...

BACKGROUND, AIM AND SCOPE Ambient air concentrations of polycyclic aromatic hydrocarbons (PAH) were determined at five elevated mountain sites on the European continent and the Atlantic Ocean. All sites can be considered remote background areas since they are situated above the timberline and they lack local emission sources of these compounds. RESULTS AND DISCUSSION Average gas phase concent...

BACKGROUND AND PURPOSE Dynamic cerebral autoregulation is impaired in subjects who develop acute mountain sickness (AMS), a neurological disorder characterized by headache. The present study examined if the normoxic sea-level measurement of dynamic cerebral autoregulation would predict subsequent susceptibility to AMS during rapid ascent to terrestrial high altitude. METHODS A dynamic cerebra...

In conjunction with bedrock mapping (MacIntyre et al., 1996, this volume) and regional till geochemistry surveys @IuntIey et al., 1996, this volume) in the Babine Lake area, detailed drift exploration studies were undertaken on five porphyry-related copper properties: Babs, Heame Hill, Lennac Lake,, Bell mine (Newman Peninsula), and Saddle Hill (Figure 1). The objective of our study was to inve...