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 9
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Home › Water Quality › Study Guide › Module 9

📘 Module 9 — Water Chemistry and Analysis Parameters

Water Quality Module 9

📚 Study guide — not official SOINC material. Use as a supplement alongside official event rules and resources.
📚 All Modules
1
Foundations
 1
Foundations of Aquatic Ecology
 2
Marine Ecosystems and Physical Oceanography
 2
Physical Parameters
 3
Estuary Ecology
 3
Dissolved Oxygen
 4
Coral Reef Biology
 4
pH, Alkalinity & Hardness
 5
Coral Reef Health Indicator Species
 5
Nutrients & Eutrophication
 6
Threats to Marine and Estuary Environments
 6
Other Chemical Parameters
 7
Marine and Estuary Food Webs
 7
Microbiological Parameters
 8
Nutrient Cycling and Biogeochemical Cycles
 8
Macroinvertebrates ⭐
 9
Water Chemistry and Analysis Parameters
 9
Aquatic Ecology
 10
Water Testing Methods and Data Interpretation
 10
Water Treatment
 11
Salinometer Construction and Use
 11
WQI & Data Interpretation
 12
Water Treatment Systems
 12
Regulations & Policy
 13
Watershed Management and Conservation
 13
Population Ecology & Modeling
 14
Marine and Estuarine Ecology
Module 9 of 27 · Water Quality

Water Chemistry and Analysis Parameters

Water Quality Module 9

0 topics
← Module 8: Nutrient Cycling and Biogeochemical Cycles 📚 All Modules Module 10: Water Testing Methods and Data Interpretation →

📖 Overview

Water Quality Module 9

📚 Study Guide

🎓 Division:

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❓ Practice Questions

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📝 Try the full Water Quality exam →

🎬 Study Videos

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🔗 Resources

  • 📖
    EPA Rapid Bioassessment Protocols (1999)
    EPA's Rapid Bioassessment Protocols for Use in Streams and Wadeable Rivers — the standard reference for macroinvertebrate sampling, habitat assessment, and biotic index calculation.
  • 📖
    USGS Mercury in the Environment — Fact Sheet
    USGS fact sheet covering mercury sources, methylation in aquatic sediments, bioaccumulation in fish, and biomagnification to top predators. Covers SciOly topics 6.1 (heavy metals), 6.2 (methylmercury), and 6.3 (biomagnification) in an authoritative, accessible format.
  • 📖
    USGS Mercury in the Environment — Fact Sheet
    USGS fact sheet covering mercury sources, methylation in aquatic sediments, bioaccumulation in fish, and biomagnification to top predators. Covers SciOly topics 6.1 (heavy metals), 6.2 (methylmercury), and 6.3 (biomagnification) in an authoritative, accessible format.
  • 📖
    ecologiclife.com — How to Build a Salinometer
    Step-by-step salinometer build guide covering conductivity measurement, electrode design, and temperature correction (~2%/°C).
  • 📖
    Daniel Kramnik — Digital Salinometer Project Log
    Detailed build log for a Science Olympiad digital salinometer (2012). Covers opamp circuit, Wien bridge oscillator, Peltier temperature controller, digital voltmeter, and conductivity measurement principles.
  • 📖
    oboe.com — Applying Water Quality Knowledge in Science Olympiad
    Competition strategy page covering ecosystem effect chains, turbidity impacts, eutrophication chains, and WQI parameter reasoning. Excellent for multi-concept questions.
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