نتایج جستجو برای: particulate metals
تعداد نتایج: 91059 فیلتر نتایج به سال:
Background and objective: Among multi-use facilities, underground subway stations are vulnerable areas where total management of particulate matter (PM) has been implemented through the Seasonal PM Management System. Through friction between train wheels railsthat occurs stations, iron oxide particles generated, which can cause various diseases in human body. This study aims to explore applicat...
Spatiotemporal distribution of airborne particulate metals and metalloids in a populated arid region
Vertical profiles of the dissolved and particulate (>0.45 µm) Pb, Al and Ba were determined on two occasions (14 and 22 August 1996) during summer stratification in a seasonally anoxic lake (Esthwaite Water, UK). The results were combined with contemporaneous in-situ measurements of water-column remobilization of the metals from settling particles at the base of the suboxic zone and other ancil...
Concentrations of trace metal pollutants are frequently reported from intertidal sediments (e.g. Bryan and Langston, 1992; French, 1993; Lindsay and Bell, 1997; Pirrie et al., 1997, 2000) and as these areas are often sites of intense human and animal activity, the level of contaminants are of particular interest with respect to environmental health (Rae, 1997; Clark, 1997). When trace metals ar...
In some environmental situations, environmental effects caused by elevated metals resulting from past mining and smelting activities can be observed in nearby receiving water bodies several decades after mine and smelter closure. There is a growing need for managing the hazardous solid wastes such as mining wastes as well as for assessing water quality and for sustainable management of sediment...
The present review deals with the utilisation of rare earth (RE) elements as particulate markers for ruminant nutrition studies. RE elements have similar chemical properties. They are attractive for use as a multiple marker system because they bind tightly to plant materials. RE binding of plant cell walls is cyclic throughout the RE series, which can be explained by the filling of the 4 f elec...
Air pollution is a significant public health issue all over the world, especially in urban areas where a large number of inhabitants are affected. In this study, we quantify the health burden due to local air pollution for Warsaw, Poland. The health impact of the main air pollutants, PM, NOX, SO₂, CO, C₆H₆, BaP and heavy metals is considered. The annual mean concentrations are predicted with th...
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