ISSS608 2017-18 T3 Assign See Kwan Yen Visualization
Chemical Trends
Patterns | Visualization |
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1. Overview of chemical tracking across the Years
An overview of the water sensor readings across the years will give us a snapshot of the level of chemicals in the wwterway.
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2. Measure Insight - Aluminum Contamination
However, a spike in the value of Iron is observed among 6 of the locations as shown in chart. Investigating further on 2003 period shows that values Copper have also spiked during the same day for Kohsoom. While we do not know the cause, the correlation of such values for these 3 chemicals seem to suggest a contamination incident around that period. |
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3. Measure Insight - Total Chlorodine and Hardness Groups
Total Hardness and Chlorodinine have been observed to have very distinct group of values before and after a certain period across the locations in the waterway.
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4. Measure Insight - Growing presence of Arsenic
In figure 1.4, Arsenic has been observed to have increasing value in the recent years across most of the locations in the reserve and as far is the data is concerned, has shown no signs of stopping. Further investigation as to the possible cause of such continuous growth would be advised as to keep it from getting into dangerous levels. |
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5. Location Insight - Kohsoom Fecal Fears
While several of the locations have their share of fecal coliforms, possibly excrements of the wildlife in the area, Kohsoom has significantly more traces of fecal streptococci, peaking at 330mg/l in April 27, 2011, seen in figure 1.5. Streptococci is a strain of bacteria that can cause urinary tract infections, meningitis, and respiratory infections to animals. While the values for the measures have dropped ever since, it would be wise to further study the contamination event, as the bacteria present in the animal feces is indicative of the animal’s health and they may have indeed been infected at the time. |
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6. Location Insight - November 22, 2014 in Tanasee
As seen in the figure 1.6A, among the locations, Tanasee was observed to have a recent period of high ammonium that peaked with 15 mg/l on November 22, 2014. After examining the rest of the data for Tanasee around that date, figure 1.6B shows that Chlorides, Nitrites, and Total Dissolved Salts have also been shown to have the same pattern of heightened increase. This suggests that contamination may have occurred prompting the increased values for the measures. |
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7. The incident of August 15, 2003
After earlier identifying Iron as having the top value of all the measures that were read, figure 1.8A was created to see the trend of Iron across all locations. With the exception of Achara, Decha, and Tanasee, locations that have just recently had traces of Iron, Iron had been consistently low for Boonsri, Busarakhan, Chai, Kannika, Kohsoom, Sakda, and Somchair. However, a spike in the value of Iron is observed among the latter group of locations. On average, without the spike, Iron values for these group of locations is around 1 mg/l. For Boonsri, the value had jumped to 30mg/l on October 15, 2002, 30 times more. For the rest of the locations, all having the spike on the same day, August 15, 2003, the value had reached 5 digits ranging from 17,970 in Chai to 37,959 in Kohsoom. Taking the sum of the values on the spike, the iron observed on the day accounts for 99.07% of total iron values collected from the reserve. Investigating further on August 15, 2003, figure 1.8C shows that values for Chromium and Copper have also spiked during the same day for the locations. This is especially true for Kohsoom, having the peak of all 3 measures on the same day. While we cannot say entirely for certain the cause, the correlation of such values seem to suggest a contamination incident around the said date. |