Agricultural Chemicals and the Environment by Hester R.E., Harrison R.M. (eds.) PDF

By Hester R.E., Harrison R.M. (eds.)

ISBN-10: 0854042202

ISBN-13: 9780854042203

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1973, 7, 19. G. E. Schuman, R. E. Burwell, R. F. Priest and M. D. Schuldt, J. Environ. , 1973, 2, 299. K. M. Atkinson, J. M. Elliott, D. G. George, D. C. Jones, E. Y. Howarth, S. I. Heaney, C. A. Mills, C. S. Reynolds and J. F. Talling, A General Assessment of Environmental and Biological Features of Windermere and their Susceptibility to Change, Freshwater Biological Association, Ambleside, 1985. C. S. , 1979, 5, 93. R. Gachier and D. J. Furrer, Schweizer. Z. , 1972, 34, 41. W. P. D. Stewart, E.

Although chronic toxicity testing is required for new substances, little is known about the long-term effects of older pesticides. Also, very little is known about the toxicity and occurrence of the products formed when pesticides break down (metabolites) or the many non-pesticidal additives (co-formulants and adjuvants) used in pesticide formulations. However, the future is looking brighter.

Having determined a range of options and costs for eutrophication control in a particular catchment, consultation on the details of the ‘Action plan’ with all those involved is needed before any plan can be implemented. 7 Conclusions The diffuse and point source inputs of nutrients from agricultural practices, causing eutrophication, are still ill-defined and the effects of nutrient regulation are difficult to predict. The options for control described, such as the construction of wetlands, reduction in fertilizer use, the introduction of buffer zones or the installation of treatment systems for dairy yard effluent, all need to be considered in cases where diffuse sources of nutrients are found to contribute biologically available phosphorus.

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Agricultural Chemicals and the Environment by Hester R.E., Harrison R.M. (eds.)


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