Wet and dry deposition of acid-forming atmospheric trace substances. Die trockene und feuchte Deposition saeurebildender atmosphaerischer Spurenstoffe Perseke, C 54 ENVIRONMENTAL SCIENCES; ACID RAIN; ENVIRONMENTAL EFFECTS; NITRATES; DEPOSITION; SULFATES; AEROSOLS; GASES; SAMPLE PREPARATION; TRACE AMOUNTS; WASHOUT; ATMOSPHERIC PRECIPITATIONS; COLLOIDS; DISPERSIONS; FLUIDS; NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; PRECIPITATION SCAVENGING; RAIN; SEPARATION PROCESSES; SOLS; SULFUR COMPOUNDS; 500200* - Environment, Atmospheric- Chemicals Monitoring & Transport- (-1989); 520200 - Environment, Aquatic- Chemicals Monitoring & Transport- (-1989); 510200 - Environment, Terrestrial- Chemicals Monitoring & Transport- (-1989) Wet/dry measurements have shown that wet deposition plays a dominant part in scavenging sulphate, nitrate and chloride vis-a-vis dry deposition of aerosol particles. In contrast to regional distribution of SO/sub 2/ and NOsub(x) concentrations, regional distributions of sulphate and nitrate concentrations in the rain show but minor regional differences between polluted and clean-air regions. Increased trace substance concentrations in precipitation are observed with low-amount precipitation. Deposition of free acids is of some interests for an evaluation of the effect of ''acid'' precipitations on ecosystems. In areas of high SO/sub 2/ and NO/sub 2/ concentrations, potential acid deposition by dry-deposited SO/sub 2/ and NOsub(i) may contribute more to acid deposition than wet H/sup +/ deposition. In urban and rural regions, an enrichment of nitrate was found in the rain as opposed to the aerosol on comparing the sulphate/nitrate ratio in rain and aerosol. Frankfurt Univ. (Germany, F.R.). Fachbereich Geowissenschaften NTIS (US Sales Only), PC A10/MF A01; 1. Germany 1982-12-16 German Technical Report Other Information: Diss. (Dr.rer.nat.). Portions are illegible in microfiche products Medium: X; Size: Pages: 207 https://doi.org/ ON: DE84770377 [] NP-4770377 Other: ON: DE84770377 DE; FRG-84-06414; EDB-84-159595 2013-03-14 8123804