Vol. 56 No. 1 (2021): RBCIAMB - ISSN 2176-9478 - March
This issue comprises 15 articles by 65 authors from 19 Brazilian institutions. The central themes addressed are water quality management; hydrology and biogeochemistry in forest ecosystems; freshwater benthic communities; reuse of ash from sugarcane bagasse; Legal Amazon, sustainable use; sewage treatment efficiencies; energy efficiency; toxicology and ecotoxicological; water quality and fishery production; bioindicators of river environmental quality; soil carbon stock; air quality monitoring; environmental health indicator; environmental technology.