Found 10000 publications. Showing page 348 of 400:
Calculation of person-weighted average concentrations of NO2, PM10 and PM 2,5 in Oslo for 1992-2002. NILU PP
2005
Calculation of dispersion and deposition, April 2010 - April 2011. NILU OR
NILU - Norwegian Institute for Air Research has calculated concentrations of NO2, SO2, and PM10 resulting from emissions from Hammerfest LNG and related shipping. Also emissions deposition of nitrogen and sulphur have been calculated. Calculations show that concentrations of NO2 may exceed the thresholds recommended by the Norwegian State Pollution Agency, but not the EU limit values nor National target values. There are no exceedances of SO2 or PM10 limit values. Calculations give a maximum yearly deposition of 14 mg N /m2 and 11 mg S /m2.
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2010
Estimates of past emission inventories suggest that toxic heavy metal pollution in Europe was highest in the mid‐1970s for lead and in the mid‐1960s for cadmium, but these previous estimates have not been compared to observations. Here, alpine ice‐cores were used to document cadmium and lead pollution in western Europe between 1890 and 2000. The ice‐core trends show that while lead pollution largely from leaded gasoline reached a maximum in ~1975 as expected, cadmium pollution primarily from zinc smelters peaked in the early‐1980s rather than in ~1965 and was up to fourfold higher than estimated after 1975. Comparisons between ice‐core trends, estimated past emissions, and state‐of‐the‐art atmospheric aerosol transport and deposition modeling suggest that the estimated decreases in cadmium emissions after 1970 were based on overly optimistic emissions reductions from the introduction of pollution control devices and other technological improvements.
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