140 sediment samples from the Hawkesbury River system were analyzed for texture, heavy metals, organochlorine pesticides, and nutrients. The data, sourced from the Australian Ocean Data Network, reveals low contaminant levels in the main channel but elevated concentrations near urbanized and industrialized areas, particularly from sewage effluent. Sediments provide a long-term integrated assessment of contaminant sources and dispersion in this large, dynamic ecosystem.
Use Cases
- Assess environmental impact from urbanization based on heavy metal and pesticide concentrations in sediments.
- Model contaminant dispersion and source identification based on sediment texture and nutrient data.
- Evaluate the risk of algal blooms and eutrophication based on sediment nutrient reservoir data.
- Monitor the effectiveness of sewage treatment plants based on downstream sediment contaminant levels.
Strengths
- Analysis of 140 sediment samples provides a substantial spatial snapshot.
- Measures a wide range of contaminants including 8 heavy metals and multiple organochlorine pesticides.
- Explicitly links contaminant patterns to specific land-use activities like urbanization, boating, and sewage discharge.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Last updated 2026-06-27 19:34:46.873135; freshness should be verified.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Analysis of sediment samples collected from estuarine and fluvial sections of the Hawkesbury River.
- Freshness
- Last updated 2026-06-27 19:34:46.873135
- Geography
- Hawkesbury River catchment, New South Wales, Australia, from Windsor to Broken Bay.