| 51 | Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS) |
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| 52 | The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington |
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| 53 | Meiofaunal assemblages of the Thames Estuary, April 1989-March 1990 : modules I-III : a study of the meiofaunal communities present in sediment samples collected by the National Rivers Authority, Thames Region |
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| 54 | Radioactivity in the environment : a summary and radiological assessment of the Environment Agency's monitoring programmes : report for 1996 |
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| 55 | Time of travel for the Greadon Farm pollution incident on the Upper Torridge of 19th August 1997 (1997) |
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| 56 | Radioactivity in the environment : report for 1998 : a summary and radiological assessment of the Environment Agency's monitoring programmes |
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| 57 | Review of comments on the Environment Agency's consultative report Endocrine disrupting substances in the environment - what should be done? |
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| 58 | Evaluation of peroxygens for the amelioration of river pollution : on behalf of the Environment Agency, Thames Region |
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| 59 | The use of air cooled blastfurnace slag as an unbound aggregate in the construction industry : BACMI/Environment Agency joint guidelines |
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| 60 | The application of toxicity-based criteria for the regulatory control of wastewater dicharges Response compendium March 1997 |
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| 61 | The Economics of No-Spray Zones - a Study of the Risks and Benefits of Pesticide No-Spray Restrictions |
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| 62 | Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991 |
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| 63 | Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993 |
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| 64 | The River Eden Demonstration Test Catchment (DTC) Data |
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| 65 | Pesticides in the aquatic environment 1997 full report |
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| 66 | Charging for discharges scheme : guidance to the agricultural industry |
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| 67 | Guidance for estimating the air quality impact of stationary sources - GN 24 |
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| 68 | The National Centre for Toxic and Persistent Substances |
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| 69 | Acidification of freshwaters: the threat and its mitigation |
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| 70 | The groundwater regulations (Bilingual) : Rheoliadau dwr daear (Bilingual) |
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| 71 | Guidance for the Development of Housing on Land Affected by Contamination |
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| 72 | Policy and practice for the protection of groundwater : regional appendix Welsh region |
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| 73 | The feasibility of biomanipulation in reservoirs and deeper lakes : draft final report |
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| 74 | The development and verification of methodologies for defining groundwater nitrate vulnerable zones |
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| 75 | An investigation into the sewage system and storm overflow at Beer (1997) |
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