| 501 | An estimated map of NO2 concentration in the Midlands region : a report produced for the Environment Agency |
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| 502 | The environmental impact of sewage discharges to the Salcombe Estuary, South Devon, from Anchor Watch, Cliff Raod, Salcombe |
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| 503 | Recorded data from the Swan Hills weather station (weather station 1) in the Wensum Catchment between 2013-2014 |
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| 504 | The Use Of DNA Fingerprinting To Study The Population Dynamics Of Otters (Lutra Lutra) In Southern Britiain - A Feasibility Study |
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| 505 | Pesticides in the aquatic environment : regional data appendix : prepared by the National Centre for Toxic and Persistent Substances (TAPS) |
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| 506 | Investigation into the effect of sewage disinfection on the bioaccumulation of chloroform, bromoform, dibromochloromethane and dichlorobromomethane by fucoid seaweeds |
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| 507 | (3) The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
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| 508 | Saving water : on the right track : a summary of current water conservation initiatives in the UK January 1998 |
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| 509 | Sustainable water resources for the future : values and challenges : consultation document for the Environment Agency's water resources strategies |
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| 510 | Radioactivity in the environment : report for 1998 : a summary and radiological assessment of the Environment Agency's monitoring programmes |
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| 511 | The team (without Tony) and their staff in their compound close to the shore of L. George 1967. |
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| 512 | Enhancement of spring salmon- Proceedings of a one-day conference held in the Rooms of the Linnean Society of London |
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| 513 | Cover of A Key to the Adults and Nymphs of the British Stoneflies (Plecoptera), with Notes on their Ecology and Distribution |
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| 514 | The environment and water resources projects. Volume 1 guidelines for the scoping and environmental assessment of water resources projects |
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| 515 | Review of comments on the Environment Agency's consultative report Endocrine disrupting substances in the environment - what should be done? |
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| 516 | Recorded data from the Swan Hills weather station (weather station 1) in the Wensum Catchment between 2011-2012 |
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| 517 | Mercury, methylmercury and copper in the River Yare, Norfolk : report to the National Rivers Authority, Anglian Region |
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| 518 | Evaluation of peroxygens for the amelioration of river pollution : on behalf of the Environment Agency, Thames Region |
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| 519 | The use of air cooled blastfurnace slag as an unbound aggregate in the construction industry : BACMI/Environment Agency joint guidelines |
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| 520 | Recorded data from the Swan Hills weather station (weather station 1) in the Wensum Catchment between 2010-2011 |
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| 521 | An investigation of ecological change in the rivers Kennet and Lambourn. Report for the period April 1998-March 1999 |
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| 522 | An investigation of ecological change in the rivers Kennet and Lambourn. Progress report for the period April 1999-March 2001 |
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| 523 | A report on the 1993 strategic stock assessment survey of the Eamont catchment with particular reference to salmonid fish |
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| 524 | Brown trout habitat assessment on the River Bela catchment (as recommended by the strategic fisheries stock Assessment Task Group 1995) |
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| 525 | Appendix to the biodiversity strategy and action plan for the Environment Agency (Thames Region) : costed action plan 2000-2003 |
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