Water Quality Of Road Runoff In The
Blue Mountains, NSW, Australia
Author(s)
S. Riley, S. Shrestha, P. Hackney & R. A. Mann
Abstract
The Blue Mountains of New South Wales, Australia is a populated area that
includes a world heritage listed area. There is concern about the impact on the
national parks of the pollution that may result from stormwater runoff from the
roads in the area. A rainfall simulation experiment was undertaken on two areas
with paved and unpaved road segments. Water quality parameters were
examined, including metals, organic pollutants and sediment load. The
hydrology and the hydraulics of the road surfaces were also studied. The paper
reports on the experimental set-up at both sites and also the main results. Some
recommendations are made concerning the management of the roads.
Keywords: road erosion, rainfall simulation, water quality.
1 Introduction
Unpaved roads contribute to sediment and pollutants discharged into bushland
and National Parks in the Blue Mountains. The erosion associated with unpaved
roads is well studied and there are several models that have been applied to
predict erosion (Gruszowski et al. [1], Luce and Wemple [2], Zaiegler et al. [3]).
Less is known of the runoff water quality in paved areas. In recognition of the
issues associated with runoff from roads the NSW State government funded a
program to pave roads in the area. The cost and environmental efficacy of the
road sealing and erosion control program needed to be quickly established and
data required to develop runoff-water quality-environmental impact models to
Keywords
road erosion, rainfall simulation, water quality.
Related Book
Other papers in this volume
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