State of the Environment Report 2010/2011 - Liverpool City Council
State of the Environment Report 2010/2011 - Liverpool City Council
State of the Environment Report 2010/2011 - Liverpool City Council
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PART 2 / <strong>State</strong> <strong>of</strong> <strong>the</strong><br />
<strong>Environment</strong><br />
79<br />
3. Water use and waterways<br />
Within <strong>the</strong> <strong>Liverpool</strong> LGA waterways are exposed to<br />
a range <strong>of</strong> pollutants from industrial and commercial<br />
premises, rural areas, roads, parks, gardens and<br />
households. In an urban area stormwater typically<br />
contains: litter, nutrients, bacteria, pathogens, pesticides,<br />
heavy metals, sediment, oils, grease and o<strong>the</strong>r pollutants.<br />
Rural run-<strong>of</strong>f can increase <strong>the</strong> levels <strong>of</strong> sediment,<br />
nutrients, pesticides and chemicals in waterways.<br />
All <strong>of</strong> <strong>the</strong>se pollutants can cause a decline in water<br />
quality, native plants and animals. The ability <strong>of</strong> a<br />
waterway to cope with increased nutrients, sediment and<br />
changes in flow is affected by <strong>the</strong> amount <strong>of</strong> vegetation<br />
cover, intensity <strong>of</strong> land use and <strong>the</strong> loss <strong>of</strong> vegetation<br />
along creek banks.<br />
<strong>Liverpool</strong> <strong>City</strong> <strong>Council</strong> ANNUAL REPORT