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The article describes the use of Scots pine bark to identifynitrogen sources in eastern Germany, as well as background areas in Russia and Bulgaria, by using natural isotope ratios of total nitrogen (N t ) and individual N compoundssuch as ammonium (NH 4 + ), nitrate (NO 3 - )and amid nitrogen...
The selection of sampling sites is one of the major tasks in thedesign of a monitoring network. Many environmental networkssuffer from either insufficient information or redundantinformation. This study presents a new, effective algorithm thataddresses the issues of insufficient and reduction...
Assessment of the food chain mobility of heavy metals inthe natural ecosystem receives more attention nowadays. Inthe present study, mulberry-silkworm food chain has beenfocused as a templet to assess the biomobility of heavymetals in soil-higher plant-insect hierarchy. Both in thecase of Cd and...
The validity of a steady-state massbalance model (Arp et al ., 1996; referred to asARP) was tested using physicochemical soil data fromthe Monitoring Acid Rain Youth Program (MARYP). FourARP sites were matched with ten MARYP sites accordingto proximity, bedrock type and subsoil pH to test...
Lichens explants and airborne particulates were analysed for Cr, Zn, Cd, Pb, Ni, Fe, Mn and Cu content in a rural site in the province of Vercelli (Piedmont, N. Italy). Thalliof the fruticose lichen Pseudevernia furfuracea were collected from an uncontaminated area and exposed for one yearusing...
The concentrations of three representative heavy metals(cadmium, chromium and lead) were measured by atomic absorptionspectroscopy in honeybees and in apiary's products (honey,pollen, propolis, and wax). Samples were collected from fivedifferent sampling points: four from areas surrounding the...
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