EESA10H3 Lecture 5: EESA10 - Lecture 5.doc
12 Jun 2014
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Threshold means that in a very low concentration we can tolerate them without experiencing. Bioavailability of metals: bioavailability is everything that is available to us. Routes of exposure: three major routes we see not only for metals but for all chemicals are, inhalation (dust or pm, fume, gas, ingestion (soil, food, plants accumulate metals in roots and leafs, through the skin. You might not hear about it, don"t know anything about it: cca-c is a greenish tinted wood it is greenish because of the copper (copper changes colour as it. It was a kind of subject of debate here in canada and the u. s. oxidates) different purposes. Toxicity of cca components: depends on the form or species of the element, soil and water characteristics, and characteristics of organisms exposed. It doesn"t mean that chromium iii is not toxic at all; it is but it is just less toxic than chromium iii.
