Effects of polluting discharges on the Thames Estuary : the reports of the Thames Survey Committee and the Water Pollution Research Laboratory.

  • Great Britain. Thames Survey Committee.
Date:
1964
Catalogue details

Licence: Public Domain Mark

Credit: Effects of polluting discharges on the Thames Estuary : the reports of the Thames Survey Committee and the Water Pollution Research Laboratory. Source: Wellcome Collection.

    653/662 (page 607)
    Temperature (contd.), of estuary (contd.), variations, long-term, 437, 168, 236-237 over cross-section, 17, 434-436, 164-167, 234 over width, 390 with depth, 436, 235 of fresh-water discharges, 28, 30, 33, 33, 38-39, 41, 43-44, 43, 46-49, 22-25 of North Sea, 444-445, 241 of sewage and sewage effluents, 431-432 of storage of samples, effect on B.O.D., 63, 28 off Northern Outfall, 129, 68, 431, 491-493, 269 off Southend, 170, 96 Tents for reaeration measurements, 354-360 design and construction, 354-355, 193 use in docks and tidal basin, 356, 146 use in estuary, 354, 356-357, 146-147, 194, 359, 363, 366, 368, 199-200, 370, 385, 494 use in wave tanks, 359-360, 148 Thames Basin, hydrology, 26 Conservancy, Act (1932), 26 area of jurisdiction, 98 concern at estuary condition in 19th century, 98-99 control of Upper Thames, 61 records, chemical, 28, 25, 105 flow, xxviii, 10-11, J-2, 9-12, 26-27, 7, 24, 75, 316-317, 486 tidal, 5 covering of, suggested, 95 Ditton, water supplies from, 94 embankment of, 97 Navigation Act (1870), 98-99 Survey Committee, vi, xv, xxvill, report of, xv—-xxvi Upper (see also Fresh-water discharges and Teddington Weir), 25-28, 7, 23-25, 23-26, 61, 92, 75, 177, 485, 493 abstraction of water from, 10, 8, 13 catchment area and run-off, 26 loads discharged to estuary, 240-241, 87, 151, 134, 182 heat, 432 oxidizable nitrogen, 217, 77 oxidized nitrogen, /41, 468 oxygen, 334, 136, 340, 145 sulphate, 257 suspended solids, 316-317, 122, 130 oxygen depletion of estuary attributable to, 182 pollution of, by land drainage, 244 salmon fry released into, 102 Thermal analysis of bottom deposits, 324-325 Thioglycollic acid method for determining dissolved iron, 574 Thiourea, suppression of nitrification by, 536 Thiosulphate as sulphide oxidation product, 272 Tidal cycle, 6 dispersal of water during, 395-396, 221 variation in concentration during, 6-9, 6, 106-108, 408-409 excursion, 9, 7, 395-396, 415, 469, 176 flow, in upper reaches, 395, 411 intervals, 6, 4 levels, 5-6, 2-3 oscillation, 99, 395, 398, 533 range, 6, 3 effect on mixing, 395 state, adjustment of sampling positions to standard, 6-9, 6 effect of discharging effluent at particular, 556 transport of solids, 98-99, 278 Tides, effects of spring and neap, 4, 6, 8-9, 192-193, 122, 195, 126, 314-315, 187 Tilbury Buoy, redox potential of mud at, 95 Cargo Jetty, dredging spoil from off, 132 Docks, deposits in, 107, 112-113, 115, 132 pollution by sugar from damaged ship in, 256 Tilbury (contd.) Docks (contd.), rate of reaeration in, 356, 146 temperature variations over cross-section near, 167 laboratory, 572 mud from foreshore, denitrification in, 254-255, 157 Power Station, 428, 455 salinity variations at, 18, 4 Sewage Works, 81, 42, 84, 125, 177, 536 Tidal Basin, mud, deposits, composition, 308-311, 712-115, 132 formation of, 278 gas evolved from, 269-270, 313 composition, 315, /2/, 331 rate, 313-315, 120, 186-187, 331, 343 oxygen absorption by, 205, 69 redox potential of, 95 sulphide formation in, 256 rate of reaeration in, 356, 146 water from, effect of contamination on reaeration of, 384, 15] iron in, 273 sulphide oxidation in, 273, 170 Timbermans Creek, 81 Time -lag in effects following changes in dumping, 163, 91 flow, 143, 58, 157 temperature, 157 term in regression analysis to allow for deterioration, 130-131, 134, 57 Topography, 4 Tower Bridge, temperature variations at, 166 Toxicity of estuary water to fish, xx, 528-529 Transport, Minister of, and abstraction from Thames, 26 Trent, River, U.O.D. of sample from, 223 Tributaries—see Fresh-water discharges Trout, rainbow, toxicity of estuary water to, 528-529 Turbidimeter, photoelectric, 195 Turbidity of fresh-water discharges, 38 Turbulence, effect on dispersal by mixing, 395 dissolved oxygen, 150 variations during tidal cycle, 393 Tyne Estuary, 4 Ultimate oxygen demand—see U.O.D. Unit inputs, effect of point of discharge and type of substance, 540, 295 of ammonia, effects of, 538-540, 186, 295, 556, 565, 302 of conservative substance, application, 563-564 effects of, 538-540, 190 of ‘fast’ organic carbon, effects of, 538-540, 184, 295-297, 556, 564-565, 302 of ‘fast’? organic nitrogen, effects of, 538-540, 187, 295, 556 of heat, applications, 455, 249-250 effects of, 453-456, 247-250, 172 of oxygen deficiency, effects of, 538-540, 189, 295, 556 of polluting substances, effects of, xxiv, 538-554, 294-295, 183-190 method of interpolation, 556, 297 proportions escaping to sea, 540, 183 situations when unsuitable, 565 to calculate effects of addition or removal of oxygen, 562-563, 301 changes in polluting loads, 554-561, 298 discharges of sewage or sewage effluent, 561-562, 299-300 discharging at particular tidal state, 556 seasonal changes in flow and temperature, 555, 296 of ‘slow’ organic carbon, effects of, 538-540, 185, 295 of ‘slow’ organic nitrogen, effects of, 538-540, 188, 295, 556