An impact assessment for urban stormwater use

The adoption of stormwater collection and use for a range of non-potable applications requires that the perceived risks, particularly those associated with public health, are addressed. Pollutant impacts have been assessed using E. coli and a scoring system on a scale of 0 to 5 to identify the magnitude of impacts and also the likelihood of exposure to stormwater during different applications. Combining these identifies that low or medium risks are generally predicted except for domestic car washing and occupational irrigation of edible raw food crops where the predicted high risk would necessitate the introduction of remedial action

Proceedings of the Symposium on Nature Conservation in the Pacific of the Twelfth Pacific Science Congress held in Canberra, Australia, 18 August to 3 September 1971

From at least the time man first controlled fire he has made use of land and water, plants and animals, and has encroached on the natural balance of his universe. Now increases in population and developments in technology threaten that balance, and there is a special urgency to define the problems of nature conservation and to find solutions to them. This book is a stocktaking of the natural resources of the Pacific region, resources subject to competing demands. To establish their most effective use thus requires evaluation in social and scientific, economic and political terms. The authors of this book include some of the world's leading experts in nature conservation and related resource-use problems. The problems they write about - conservation in relation to other uses, fauna conservation in relation to flora conservation, conservation of wide-ranging groups, conservation on oceanic and offshore islands, restoration after mining- and the solutions they suggest are of fundamental and challenging importance