natwat2 - Chemical composition of natural waters 2:...

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1 Chemical composition of natural waters 2: suspended particles I. types of suspended particulate matter A. inorganic 1. mineral clays (alumino-silcates) 2. Al, Fe, and Mn oxides 3. may dominate suspended particle loads of some rivers, estuaries, and bottom waters B. biogenic 1. living and dead organisms (bacteria, microalgae, zooplankton, dead remains, fecal pellets) 2. biologically produced mineral phases (CaCO 3 , SiO 2 ·nH 2 O) 3. biogenic particles are formed in surface waters and remineralized at depth 4. POC (particulate organic carbon): 5 μg - 5 mg L -1
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2 II. concentrations of suspended particles: total suspended solids (TSS) total suspended matter (TSM) oligotrophic lakes and ocean: 10-100 μg L -1 lakes, coastal ocean: 0.1-10 mg L -1 rivers: 9 - 18,000 mg L -1 eutrophic lakes, estuaries: 10-100 mg L -1 III. Sediments Composed of solids (minerals, organic matter, bacteria, algae, animals) and pore water Descriptive properties: particle grain size organic matter content
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This note was uploaded on 10/25/2011 for the course ENVSCI 202 taught by Professor Staff during the Spring '11 term at Rutgers.

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natwat2 - Chemical composition of natural waters 2:...

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