DADA AS, DATA ACQUISITION

Often called bioavailable metals because it is in the water and all animals and plants are exposed to it... Heavy metals also called trace metals because of the low concentrations are a natural and necessary part of the biological system. In concentrations over certain limits, however, the heavy metals are toxic to organisms. Heavy metals commonly monitored are lead (Pb), cadmium (Cd), copper (Cu), mercury (Hg), nickel (Ni), zinc (Zn) and chromium (Cr), because of pollution from industry or other sources. Most of these metals accumulate in organisms and in the food chain, and their toxicity is both acute and chronic. Low concentrations in seawater of cadmium, for instance, are sufficient to give chronic effects in organisms and ecosystems. Methods used in monitoring systems have to be accurate and be able to detect heavy metals in low concentrations... A third of the world's children poisoned by lead, up to 800 million globally, with blood lead levels at or above 5 micrograms per..

Primary location: Stabekk Norway