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Human Impact on Water in Shanghai - investigate how the land use of the area around the river affects the water quality

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Introduction

Grade 10 Humanities - Geography Drainage Basins and River - Water Pollution Kimberly Hoong S4 Ruby Table of Content 1 Aim 3 2 Introduction 3 3 Hypothesis 3 3.1 Reasoning 3 4 Methodology 4 5 Results and Analysis 4 5.1 Table of Results 4 5.2 Graph of Results 8 5.3 Analysis of Results 9 6 Conclusion 10 7 Evaluation 10 7.1 Reliability 10 7.2 Validity 10 8 Bibliography 10 1. Aim To investigate how the land use of the area around the river affects the water quality. 2. Introduction Water quality is defined by its physical, chemical and biological characteristics, one of which is the pH value. The pH value of the river is important as it affects the marine life in the water bodies. In the recent years, China has been known for its mass water pollution due its desire to grow economically - rapidly. 70% of Chinese lakes and rivers are polluted, and 90% of their groundwater is unsuitable for human use (Scipeeps, 2009). Out of all the provinces in China, Shanghai is notably the worst province in terms of contributing to water pollution. As Shanghai is situated right at the coast of the country with the Huangpu River beside it, there are naturally many rivers present. It has an intensive distribution of water bodies across the city, contributing to the economic and social growth (Ge, 1999). ...read more.

Middle

Industrial 8.5 Construction going on 5 GuDai Lu Residential 8 Fishes present, little debris 6 ??? Residential 8 Fishes, plants, algae present 7 ????? Industrial 8.73 Small abandoned factories nearby, rubbish everywhere 8 ???? Residential 7 Clear water, people clean debris from river 9 ???, ??? Residential/ Commercial 7.5 No pipes nearby, fishes present, not a lot of litter 10 ???,??? Residential 7 No signs of life 11 ??????, ??? Residential 6 Manmade fountains 12 ????? Residential 8 Fishes and algae present 13 JinQiao Canal Commercial 8 Fishes present 14 Green Villas Lake Residential 7 Plants and fishes present 15 ???? Residential 7.5 Fishes present, wild vegetation on other side of river 5.2 Graph of Results 5.3 Analysis From the results obtain from above, it is found that almost all of the rivers near residential areas has a pH level equal to or lower than 8. However, there are a few water bodies near residential rivers that exceed the pH level of 8, i.e. water sample No.3. Water sample 3 is also near a commercial site, with pipes situated above the river. This would mean that occasionally, there will probably be a few leaks from the pipes every now and then. However, water sample 9, taken near a residential and commercial site, has only a pH value of 7.5. Referring back to the table, it can be seen that there are no pipes nearby, and it is overall a clean and debris-free river. ...read more.

Conclusion

This proves that residential areas do not affect the pH value of the river as much as industrial or commercial areas, because not much chemicals are disposed of into rivers compared to the other areas. Therefore, my hypothesis is correct. 7. Evaluation 7.1 Reliability The field study could be improved as the results could have been repeated twice each for the average result to be taken. However, there were no problems when achieving the results and the apparatus used were all reliable and in good condition, with the exception of the universal pH indicator. The pH indicator was a little polluted with other substances, so when the testing was done it could have affected the results. The method was precise, taking note of the details. For example, the stone which was placed in the bottle was cleaned so that there would be no foreign substances. If it could be improved, I would use a data logger instead, as the pH value would be more accurate. 7.2 Validity As the apparatus used measured everything needed, i.e. universal indicator to measure the pH value of the river, I could say that the field study was valid. The method carried out obtained the results needed and supported my hypothesis. However, as the universal indicator was slightly contaminated, I could have used a different pH strip. 8. ...read more.

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