... spills;depositionsPressure indexStateConcentrations(Chlorine) concentrations;O3 column(N, P, BOD) concentrationsDeposition; concentrations(POC, heavy metal)concentrations(VOC, NOX, SOx)concentrationsSpecies ... basis and only in a few countries. TheUnited Nations Statistical Office's new handbookfor Integrated Environmental and Economic Ac-counting proposes a System of Environmental and Economic ... organizations were working on environmental or sustainable development indi-cators at a national or international level. In 1992,WRI organized and hosted an international work-shop on environmental...