Environmental geochemistry in the tropics

摘要: Trends in environmental geochemistry tropical countries.- Paleoclimate studies Brazil using carbon isotopes soils.- Soil-to-plant transfer of 137Cs related to its geochemical partitioning Oxisols areas.- Speciation, reactivity and mobility toxic elements soil systems.- Key role flow velocity pH the lixiviation mineral-forming elements.- Spatial distribution seasonal patterns aquatic emergent plants Southeast Brazil: Development a tool for mass balances.- Instrumental multi-element analysis plant materials: A modern method chemistry systems research.- Chemistry trace Patos lagoon, South Brazil.- Mass balance estimation natural anthropogenic heavy metal fluxes streams near camaqua copper mines, Rio Grande do sul, model metals mar del Plata coastal ecosystem, Argentina.- Mangrove swamps Subae Paraguacu tributary rivers Todos os Santos Bay, Bahia, Metal scavenging cycling region.- Mercury behaviour sediments from sub-tropical environment SE Diagnosis problems vein gold mining Colombia.- Assessment pollution "garimpo".- within alluvial Carson river valley, Nevada: Implications sampling strategies environments.- Hydrogeochemical description groundwaters region de Janeiro state, Long term atmospheric aerosol characterization Amazon Basin.- Are estuaries sinks or sources?.