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Tham khảo sách 'committee on toxicity of chemicals in food, consumer products and the environment - subgroup report on the lowermoor water pollution incident', khoa học tự nhiên, công nghệ môi trường phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Committee on Toxicity of Chemicals in Food Consumer Products and the Environment Subgroup Report on the Lowermoor Water Pollution Incident Contents Chapter 1 Executive Summary 13 Chapter 2 Introduction 21 Historical perspective 21 Terms of reference of COT Subgroup 23 Membership of Subgroup 23 Methods of working 23 Dates of meetings and visits 25 Chapter 3 The Lowermoor water pollution incident water supply and contamination 27 Introduction 27 Lowermoor Water Treatment Works 27 The pollution incident 32 The distribution of contaminated water 33 The nature of the contamination of the water supply 33 Calculated values for the aluminium sulphate concentration in the Lowermoor Water Treatment Works 34 Collection of water samples for water quality analysis 35 Water quality data from SWWA and South West Water Ltd 36 Introduction 36 Pre-incident monitoring data 38 Results of monitoring - 7 July to 4 August 1988 41 Results of monitoring - 5 August to 31 December 1988 57 Results of monitoring - 1989 61 Monitoring data from other sources 63 Modelling of pollutant concentrations in Lowermoor treatment works and in trunk main system 64 Indications of copper concentrations in the contaminated water 72 Other water pollution incidents involving aluminium sulphate 73 Key points 73 Chapter 4 The assessment of exposure to contaminants 77 Introduction 77 Calculated estimates of exposure by the oral route 77 Water consumption data 77 Possible intakes from food 78 Water quality data 78 Estimated exposure to contaminants from 7 July to 4 August 1988 79 Estimated exposure to contaminants from 5 August 1988 to 31 December 1989 85 Modelling of exposure estimates 88 Modelling by Black and Veatch Consulting Ltd 88 Modelling by Crowther Clayton Associates Ltd 88 Dermal exposures 91 Key Points 91 Chapter 5 Evidence from individuals and population studies from the North Cornwall area 95 Introduction 95 Personal evidence 95 Population studies 95 Data from personal testimonies made by members of