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About Me

I'm a lab rat who likes data.

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Major Parties in Alberta Provincial Elections

Depicted as the raw number of seats in the legislature.

Featured Data Sets

Efficacy of water treatment methods for the removal of pharmaceuticals

Compilation of rate constants for the degradation of various pharmaceutical compounds with select water treatment methods. The rate constants are under optimal pH conditions for the compound and at 20C.

Recent Comments

Heroin vs. Cocaine
vs. MDMA (Ecstacy)..

beetle monster: correlation does not indicate causation (4 months ago)

selenized: ah market forces at work (2 months ago)

Major Parties in
Alberta Provincial..

sara: This is a very interesting graph! What happened to the United Farmers in 1930? (2 months ago)

selenized: A combination of the great depression and a sex scandal meant that they went from 39 seats in the 1930 election to zero in the following (social credit would take control for the next 35 years). (2 months ago)

Efficacy of water
treatment methods ..

              Natalie:
              I love the graph you featured from this data set.  I was just wondering if you could explain it to me in layman's terms. :)  I'm not too familiar with pharmaceuticals or water treatment methods.
              
                (about 1 month ago)
              
              selenized:
              I'll give it a shot...I spend so much time around technical jargon it can be hard to break free...

The table contains some common pharmaceuticals that have been found in municipal waste water before.  What is tabulated is the rate at which these pharmaceuticals break down when treated with the different water treatment methods.  The scale is logarithmic so that, for example, Ibuprofen breaks down about a billion times faster when ozone and UV are combined than with just ozone alone.

What this means, practically, is that the water treatment methods with the faster rate are simply better at removing that compound from the water.  So if one was concerned about pharmaceuticals ending up in the drinking water ozone based methods are clearly far superior to chlorination methods.
              
                (about 1 month ago)
              
              Natalie:
              Gotcha -- very interesting stuff.  Thanks for the clarification. :)
              
                (about 1 month ago)