01743nab a2200241 i 4500003000900000005001700009008004100026040001800067072000800085072000800093100002000101100003000121245008300151500007000234520084700304650001801151650002301169650001201192773018901204856008101393942000801474999001901482BR-BrBNA20260407045455.0260407b2019    bl.qr|pooa||| 00| 0 eng |  aBR-BrBNAbeng  aP40  aT01  aDick, Grasiele   aSchumacher, Mauro Valdir   aVegetation Burning in Pampa Biome Altered the Chemical Composition of Rainfall  aPublicação on-line; 20 ref.; 2 tables; 4 illus.; Summary (En)  a

ABSTRACT

Rainfall is one of the primary nutrient inputs to vegetation and its chemical composition is
dependent on air quality as falling rain scavenges gaseous and particulate emissions from natural,
industrial, and agricultural activities. The objective of this study was to evaluate whether the
vegetation burn in a region of the Pampa biome influences the pH and chemical composition
(anions) in incident rainfall. Nitrate, sulfate, and chloride concentrations, as well as the pH of
the rainwater, were influenced by suspended particles in the atmosphere from biomass burning
of native grassland and pasture renewal. The rainwater was acidified by, ash, and soot, which
introduced large amounts of chloride and sulfate into the ecosystems caused by burning vegetation.

Keywords: rainwater acidification, anions, atmospheric pollution.  aCHUVA ÁCIDA  aPOLUIÇÃO DO AR  aÂNION0 029299347952dRio de Janeiro-RJ Instituto de Florestas - UFRRJ 1994o2025-0451tFloresta e Ambiente (Brazil)x1415-0980  /  ISSN 2179-8087 0nlinegv. 26(3) p. 1-6; (2019)wBR2026000286  uhttps://www.scielo.br/j/floram/a/gfWLhZ97GLLTMfHJJQk7fMG/?format=pdf&lang=en  cANA  c341253d341253