The field trip aims to show the interrelation of water quality and human activities based on the pollutant and organism found in the water samples. Sample collection is to prove the actual spatial variation of water in different sites. The variation leads students to draw the implication based on their result finding and notice the environmental change, thereby understanding the relationship between environment and human.
Table of Contents
Introduction
1.1 Background
1.2 Purpose
1.3 Objectives
1.4 Methods Used
Results
Discussion
Conclusion
Reference
Objectives and Scope
The primary aim of this laboratory report is to investigate the interrelation between human activities and water quality along the Kam Tin River by analyzing physical and chemical water indicators across various sites to determine how environmental changes correlate with human impact.
- Measurement of water quality parameters including dissolved oxygen, pH, and BOD5.
- Spatial variation analysis of river water quality from upstream to downstream.
- Examination of the influence of land use and human activities on river ecosystems.
- Evaluation of river temperature fluctuations based on channel characteristics and vegetation cover.
Excerpt from the Lab Report
Water quality decreases further downstream
The water quality in the upper stream of Kam Tin River is considerably better than in the lower stream. The average water quality index from AC to WCYb is 8.3 while the average water quality index from KTN to CKT is 11.25. It is because fewer human activities can be found in the upper course. For example construction sites, car fixing factories and river straightening works. If we see from the angle that good water quality can support biodiversity, because the river is heated when flowing downstream, and that oxygen solubility decreases further downstream and can support only fewer organisms to live (mainly pollution-tolerant macro invertebrates), water quality decreases further downstream with rising temperature and less dissolved oxygen.
Summary of Chapters
Introduction: Provides the background of the study, the research purpose, specific objectives, and the methodologies employed for water sample collection and testing.
Results: Presents the gathered data on river water quality, including the Water Quality Index (WQI) scores and comparative tables for various test sites.
Discussion: Analyzes the findings regarding water quality degradation, temperature variations, and pH shifts as the river flows from upper to lower courses.
Conclusion: Synthesizes the evidence to confirm that human activity is the most significant factor influencing environmental and water quality changes along the Kam Tin River.
Reference: Lists the academic and governmental sources used to support the analysis of water chemistry and environmental data.
Keywords
Kam Tin River, water quality, human activities, BOD5, dissolved oxygen, pH value, river pollution, spatial variation, water quality index, environmental change, land use, ecosystem, industrial waste, riparian vegetation, biodiversity.
Frequently Asked Questions
What is the core subject of this lab report?
The report focuses on an environmental study of the Kam Tin River, specifically examining how human activities and land use impact the water quality at different locations along the river's course.
What are the central thematic fields covered?
The report explores hydrology, water chemistry, human-environment interaction, and the physical characteristics of river basins under varying degrees of human development.
What is the primary research goal?
The goal is to demonstrate the interrelation between human activities and environmental degradation by proving spatial variations in water quality from upstream to downstream sites.
Which scientific methods were applied?
The study utilized field sample collection, electrical water temperature measurement, dissolved oxygen meters, pH meters, gravimetric analysis for suspended solids, and dilution methods for BOD5 testing.
What does the main body cover?
The main body covers site descriptions, the application of the Water Quality Index (WQI), data presentation, and a detailed discussion on why parameters like pH and temperature fluctuate based on the surrounding environment.
Which keywords characterize this work?
Key terms include Kam Tin River, water quality index, BOD5, human activities, spatial variation, and environmental monitoring.
How does the concrete riverbank affect water temperature?
Concrete has high thermal mass and lacks the shading provided by natural vegetation, leading to increased heat absorption and higher water temperatures in the lower, artificially modified courses.
Why does the pH value often increase in the lower course?
The increase is attributed to the presence of metallic materials from scrap yards reacting with oxygen to form alkaline metal oxides, alongside potential chemical waste dumping from construction sites.
What is the significance of the Water Quality Index (WQI) in this study?
The WQI provides a standardized method to quantify organic pollution levels, allowing for a clear comparison between relatively clean upstream sites and heavily polluted lowland sites.
- Quote paper
- Bachelor of Education (Music) Kwan Lung Chan (Author), Lui Yan Pui (Author), Tam Pui Ying (Author), 2014, Lab Report on Kam Tin River Pollution, Munich, GRIN Verlag, https://www.grin.com/document/448234
