ISSS608 2017-18 T3 Assign Xie Zhimao Findings

   2018 Mini-Challenge 2 Visualization

Overview

Data Preparation

Visualization

Conclusion

Initial Findings

From previously graphs we pick out 10 representive measures in recent three years and visualiza the their trends.
10 measures are as follow: Total dissolved salts, Total hardness, Bicarbonates, Oxygen Saturation, Sulphates, Macrobenthos, Chromiunm, Calcium, Water Temperature, Magnesium.

1.Trends

• In terms of volume of chemical contamination, most of measures keep in a relative stable interval. And for the total dissolved salts, it shows a downward trend overrallly.
• From the location pespectives, meansures average value in most regions have been effectively controlled and there is a trend of decreasing. However in Somchair and Busarakhan, the chemical cantamination is still slowly improving.

• When if refers to the definition of Total Hardness, we could figure out that Hardness is caused by compounds of calcium and magnesium, and by a variety of other metals. So, we also extract those two elements value into consideration.
• Basically, the performance of two elements is accord with our expectations. Their comprehensive trends almost coorespond to Total Hardness in every locations. Namely, we conclude that we can just pay attention to the large value measures, since the Trace element trends and changes are included.

2.Anomalies

• In Geo map, we take Total dissolved salts into account as follow.

• We can see obviously from the graphs, there is no data in Achara in 2015 but with high value in both 2014 and 2016. Apparently, it is a mistake when investigator approach the samples, since the dissolved salts could not vanish one year and show suddenly. Precipitation and formation of substance is a long-term process. The investigators need to make sure integrity of data in every locations in future sampling strategy. Especially for the large value measures, such as Total dissolved salts, Total hardness and Bicarbonates.