Biogeochemical mapping for environmental risk assessment in continental, regional and local scales

BIOGEOCHEMICAL MAPPING FOR ENVIRONMENTAL RISK ASSESSMENT IN CONTINENTAL, REGIONAL AND LOCAL SCALES 

Chemical elements Distribution of sub-regions and biogeochemical provinces Content of elements in biogeochemical food webs Biological reactions of organisms and endemic diseases 

Co deficit Everywhere Low content of Co in Podsoluvisols, Podzols, Arenosols and Histosols. The average Co content in plant species is 5 ppb The decrease of Co content in tissues decrease of vitamin BJ2 in liver (tr.—130 ppm), in tissue (tr.—0.05 ppm), in milk (tr.—3 ppm). Synthesis of vitamin Bi2 and protein is weakened. Cobalt-deficiency and Bj2 vitamin-deficiency. The number of animal diseases is decreasing in raw sheep —cattle — pigs and horses. Low meat and wool productivity and reproduction 

Cu deficit Everywhere, but especially in Histosols Low content of Cu in Podsoluvisols, Podzols, Arenosols and Histosols. The 30% of forage samples contents Cu 3 ppm. The 3-fold reduction of Cu content in blood, 30-40-fold, in liver n x 10-fold increase of Fe in liver. The synthesis of oxidation ferments is depressed. The anemia of sheep and cattle was shown 

Cu + Co deficit Especially in Swamp ecosystems Low content of Cu and Co in Podsoluvisols, Podzols, Arenosols and Histosols. Declining contents of Cu and Co in forage species (Cu from 3 to 0.7 ppm, Co 5 ppb) Depressed synthesis of BJ2 vitamin and oxidation ferments. Cobalt-deficiency and B12 vitamin-deficiency complicated by Cu deficiency. The prevalent diseases of sheep and cattle 

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