'수질오염'에 해당되는 글 1건
- 2007.09.26 수질 오염
그런데 ... 멀리서 볼때는 마냥 깨끗해 보이던 이 호수에 ... 아래와 같은 표지판이 있을 줄이야 ...
실제로 가까이서 보니 많은 양의 녹색이끼가 끼어 있고 물도 그리 깨끗해 보이지 않았다 ..
우리가 아는 호주는 참 깨끗한 나라로 알고 있는데 ... 왜 오염이 되었을까 ?
가까이에 있는 올림픽공원의 호수에 가도 물이 약간 지저분 했다 ...
뭐 많은 파트타임 관리인을 통해 관리되는걸 보아하니 차차 깨끗해지겠지만 ...
약간의 의문이 들었다
위키에서 찾아보니 정보들이 많이 나와 있구나 ...
(도대체 위키에 없는건 뭘까 ? )
http://en.wikipedia.org/wiki/Parramatta_River
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Water quality concerns
Until 1970 the river was an open drain for Sydney's industry and consequently the southern central embayments are contaminated with a range of heavy metals and chemicals. The Northern Bays are less affected as the Sydney Harbour Bridge was not completed until 1932 and so industrial development was already well established on the southern side of the Harbour.
Dr Gavin Birch of the University of Sydney has published a number of papers which show that Sydney Harbour is as contaminated as most other harbours in industrialised cities, that the main sediment contamination is in the southern central embayments (Blackwattle to Homebush Bays), that there are 5 particularly contaminated areas of Sydney Harbour, and that 4 of them are in the Parramatta river system.
The main contaminated areas of the Parramatta River are:
- Homebush Bay - dioxins, lead, phthalates, DDT, PAHs (coal tars) mainly originating from nearby chemical factories of Berger Paints, CSR Chemicals, ICI/Orica, and Union Carbide.
- Iron Cove - various metals and chemicals with no clearly defined point source. Pollution may possibly enter through Iron Cove Creek and Hawthorne Canal.
- Off former AGL site, now redeveloped as Breakfast Point.
Water quality is monitored by the New South Wales Department of Environment and Climate Change for faecal coliforms and e. coli, but only as far west as Cabarita. the Department does not monitor water quality further west on the River, despite increasing development and the use of the river for recreational boating. In the areas monitored, the water quality is generally acceptable except after heavy rains.
[edit] Fishing
The Parramatta River is subject to a number of fishing bans because of its contaminated sediments. There is a complete fishing ban in Homebush Bay because of the dioxin contamination, and a complete commercial fishing ban throughout the rest of Sydney Harbour and its tributaries, including the Parramatta River.
The Parramatta River is one of the few significant coastal rivers in New South Wales which has not been the subject of a Healthy Rivers Commission Investigation. The Cooks River and Botany Bay have been subject to such an investigation. Some have campaigned for a Healthy Rivers Commission inquiry to bring together all the information on the state of the river and its sediments and fish and assist in watershed management.
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