Abstract
Aspects of litter movement were looked at in a variety of ways. River bank clearances provided valuable information on litter accumulation and movement, showing a distinctive correlation between flood events and litter movement. Introduction of litter outside of channel deposition (diffuse sources) were limited in the study area in South Wales, UK. A rise in litter deposition occurred for some time after flood events, with the main accumulation occurring in the mid-bank zone. As only some litter types have an increased input during flood events e.g. sewage-derived material from combined sewer outfalls (CSO), accumulation of other litter types, e.g. plastic sheeting could be due to their distribution throughout the catchment. A positive correlation between litter stranding and vegetation was found. During high flows, (75.59 cumecs) litter is removed from sites with little restraining vegetation and deposited where stranding potential is high. Smaller items such as feminine hygiene products were more susceptible to stranding than larger plastic sheeting.
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References
Bird, S. C.: 1987, A Background Note on the ‘NUT River Water Quality Model’, WWA, Inland waters section, p. 31.
Boswell, G.: 1992, Report on Time of Travel Excercise in Conjunction with a Litter Transport Excercise on the River Cynon, NRA-Welsh Region Tech. Memo. R & D contract G01(91)8, 1–5.
Inverarity, R. J., Bradshaw, J. and Bird, S. C.: 1988, Equipment and Methodology for Time of Travel (Dispersion) Studies in Inland Waters, Welsh Water, p. 16.
Morris, N. C. G.: 1986, ‘The NUT River Water Quality Model, A users manual’, WWA Inland Waters Section.
Simmons, S. L. and Williams, A. T.: 1994, ‘Sewage related debris’, in R. Earll (ed.),Marine Environmental Management: Review of Events in 1993 1, 45–48.
USEPA: 1985, Rates, Constants and Kinetic Formulations in Surface Water Quality Modelling. US Dept. of Comm. Nat. Tech. Inf. Serv. Doc. No. PB 85F-245314.
Williams, A. T. and Simmons, S. L.: 1995, ‘Sources and sinks of litter’, in R. Earll (ed.),Coastal and Riverine Litter: Problems and Effective Solutions, pp. 14–18.
Williams, A. T. and Simmons, S. L.: (in press a, J. Coastal Conservation), The Degradation of Plastic Litter in Rivers: Implications for Beaches.
Williams, A. T. and Simmons, S. L.: (in press b, J. Coastal Research), Estuarine Litter at the River/Beach Interface in the Bristol Channel, UK.
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Williams, A.T., Simmons, S.L. Movement patterns of riverine litter. Water Air Soil Pollut 98, 119–139 (1997). https://doi.org/10.1007/BF02128653
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DOI: https://doi.org/10.1007/BF02128653