Arsenic in forests – a short review

Abstract The inputs of As in forest ecosystems have declined since the eighties when higher concentrations that metalloid were observed due to industrial activities. floor include throughfall and litterfall where dry deposition is an appreciable percentage. This manifested by concentration older needles conifers enrichment relative bulk deposition. convert inorganic into methylated organic this way reduce its toxicity. In unpolluted forests vast percentage retained soils because oxides Fe Al are very efficient holders. polluted forested can become mobile enrich surface runoff waters approaching even threshold value set World Health Organization. For reason with high former loads should be monitored.