" ... produced for the Environment Committee of the OECD by its Water Management Policy Group"--Page 3. Includes bibliographical references.

This study reflects the growing consensus among experts whose viewpoints were not always the same that some changes in agricultural practices are necessary to limit the environmental costs to society.--Publisher's description. pt. 1. Fertilizers and animal wastes. Overview of the situation -- Nitrate leaching from areas of intensive crop production : the role of synthetic fertilizers -- Nitrate and phosphorus pollution by animal waste -- Pollution of the water resource system : problems experienced including health issues -- Preventive measures to reduce nitrate pollution within the agricultural sector -- Water management measures to minimise the impact of nitrate pollution on drinking water -- Policy development : guiding principles and available instruments -- Research needs -- pt. 2. Pesticides. Occurrence of pesticides in the aquatic environment -- Potential problems in current use patterns -- Pesticide regulation -- Pesticide production and use -- Possible future developments in the field of pesticides -- Research needs.