i just need the defition for it.
2007-10-02 11:24:02 · 1 answers · asked by omgr0le.play 2 in Science & Mathematics ➔ Earth Sciences & Geology
It is the concentration of a certain element or compound through the trophic chain. Supose a tiny invertebrate contains 1 microgram of lead (It doesn't sound too much?, well, wait and read!. A shrimp eats one thousand of these, so its eating 1000 micrograms, or, 1 miligram. Maybe 500 micrograms are excreted and 500 micrograms are fixed into the shrimp body. Then a small fish eats up 100 of these shrimps, so into the fish body maybe 25000 micrograms (Or 25 miligrams) of lead is fixed Then a bigger fish eats 10 of these small fish, 125000 micrograms of lead (or 125 miligrams) is fixed into its flesh. Then it is caught by a fisherman who eats 3 of these fish, he will be eating up 375000 micrograms (or 375 miligrams) of lead, which maybe a half of it will be stored into his body and cause him lead intoxication. This is an exaggeration, but i did it only for you to understand. It has happened. Hope it helps
2007-10-02 12:44:22 · answer #1 · answered by Manuelon 4 · 1⤊ 0⤋