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High levels of phosphorus can deplete your blood of calcium . High levels of phosphorus support over-production of algae , which causes significant reduction in water quality . High values of frain are expected for skewed circulations ( narrow updrafts , broad downdrafts ) and / or small concentrations of condensation nuclei . High levels of infection among staff and trainees result in increased inefficiencies of training provision , just at a time when a massive expansion of skills development activities is needed to replace formerly productive workers . High levels of phosphorus in surface water cause eutrophication or algae blooms . High doses of polonium-210 - - a rare radioactive element - - were found in Litvinenko 's body . High levels of infection two or three years in a row may kill trees of any size . High levels of phosphorus in our lakes promote excessive growth of algae . High levels of phosphorus also encourage the rapid growth of " blue-green " algae ( cyanobacteria ) . High levels of chlorophyll , a product of these bacteria , are shown in red , the lowest levels in blue .