<div dir="ltr"><div class="gmail_default" style="font-family:&quot;trebuchet ms&quot;,sans-serif;font-size:small;color:rgb(116,27,71)"><br clear="all"></div><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div class="gmail_default" style="font-family:&quot;trebuchet ms&quot;,sans-serif;font-size:small;color:rgb(116,27,71)">​<span style="font-family:Cambria,serif;color:rgb(34,34,34)">The Department of Chemistry</span></div>

<p class="MsoNormal" style="margin-bottom:0.0001pt;background-image:initial;background-repeat:initial"><span lang="EN-PH" style="font-family:Cambria,serif">School of Science and Engineering</span><span lang="EN-PH" style="font-family:Cambria,serif"></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;background-image:initial;background-repeat:initial"><span lang="EN-PH" style="font-family:Cambria,serif"> </span></p>

<p class="MsoNormal"><span lang="EN-PH" style="font-family:Cambria,serif">Invites you to the MS Thesis Defense of </span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><b><i><span lang="EN-PH" style="font-family:&quot;Bookman Old Style&quot;,serif">Ms. ANN
SELMA C. MORATA</span></i></b></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><b><span lang="EN-PH" style="font-family:Cambria,serif">MS Chemistry</span></b></p>

<p class=""><b><u><span style="font-family:Cambria,serif"> </span></u></b></p>

<p class="MsoNormal"><b><u><span lang="EN-PH" style="font-family:Cambria,serif">Title:</span></u></b><span lang="EN-PH" style="font-family:Cambria,serif">  <b>“</b></span><b><span lang="EN-PH" style="font-size:12pt;line-height:115%;font-family:&quot;Times New Roman&quot;,serif">OCCURRENCE AND
BIODEGRADATION OF SELECTED POLLUTANTS FOUND IN SEVEN LAKES, SAN PABLO CITY,
LAGUNA</span></b><b><span lang="EN-PH" style="font-family:Cambria,serif">.<span style="background-image:initial;background-repeat:initial">”</span></span></b><b><span lang="EN-PH" style="font-size:12pt;line-height:115%;font-family:&quot;Times New Roman&quot;,serif"></span></b></p>

<p class="MsoNormal"><b><u><span lang="EN-PH" style="font-family:Cambria,serif"><br></span></u></b></p><p class="MsoNormal"><b><u><span lang="EN-PH" style="font-family:Cambria,serif">Panelists:</span></u></b><span style="font-family:Cambria,serif">             </span></p>

<p class="" style="margin-bottom:0.0001pt;background-image:initial;background-repeat:initial"><span lang="EN-PH" style="font-family:Cambria,serif">1.<span style="font-stretch:normal;font-size:7pt;font-family:&quot;Times New Roman&quot;">      
</span></span><span lang="EN-PH" style="font-family:Cambria,serif">Jose Mario Diaz, PhD</span></p>

<p class=""><span lang="EN-PH" style="font-family:&quot;Bookman Old Style&quot;,serif">2.<span style="font-stretch:normal;font-size:7pt;font-family:&quot;Times New Roman&quot;">   
</span></span><span lang="EN-PH" style="font-family:&quot;Bookman Old Style&quot;,serif">Lea
Cristina Macaraig, PhD</span></p>

<p class="" style="margin-bottom:0.0001pt;background-image:initial;background-repeat:initial"><span lang="EN-PH" style="font-family:Cambria,serif">3.<span style="font-stretch:normal;font-size:7pt;font-family:&quot;Times New Roman&quot;">      
</span></span><span lang="EN-PH" style="font-family:Cambria,serif">Nestor Valera, PhD</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;background-image:initial;background-repeat:initial"><b><u><span lang="EN-PH" style="font-family:Cambria,serif"> </span></u></b></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;background-image:initial;background-repeat:initial"><b><u><span lang="EN-PH" style="font-family:Cambria,serif">Adviser:</span></u></b><span lang="EN-PH" style="font-family:Cambria,serif"></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;background-image:initial;background-repeat:initial"><span lang="EN-PH" style="font-family:&quot;Bookman Old Style&quot;,serif">Fabian
M. Dayrit, PhD</span><span lang="EN-PH" style="font-family:Cambria,serif"></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;background-image:initial;background-repeat:initial"><b><u><span lang="EN-PH" style="font-family:Cambria,serif"> </span></u></b></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;background-image:initial;background-repeat:initial"><b><u><span lang="EN-PH" style="font-family:Cambria,serif">Date:</span></u></b><span lang="EN-PH" style="font-family:Cambria,serif">  08 July 2016</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;background-image:initial;background-repeat:initial"><b><u><span lang="EN-PH" style="font-family:Cambria,serif">Time:</span></u></b><span lang="EN-PH" style="font-family:Cambria,serif">  5:00 PM</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;background-image:initial;background-repeat:initial"><b><u><span lang="EN-PH" style="font-family:Cambria,serif">Venue</span></u></b><span lang="EN-PH" style="font-family:Cambria,serif">: C205, Schmitt Hall</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;background-image:initial;background-repeat:initial"><span lang="EN-PH" style="font-family:Cambria,serif"> </span></p>

<p class="MsoNormal"><b><u><span lang="EN-PH" style="font-family:Cambria,serif">Thesis Abstract:</span></u></b></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;text-align:justify"><i><span lang="EN-PH" style="font-size:12pt;font-family:&quot;Times New Roman&quot;,serif">The
occurrence and biodegradation of selected pollutants in lakes Palakpakin,
Sampaloc, and Pandin in San Pablo City, Laguna, were studied. Lake water
samples were collected during rainy season (August and September 2015) and dry
season (February and May 2016) at varying depths. The selected pollutants were
extracted and concentrated using solid phase extraction (SPE) and analyzed
using gas chromatography/mass spectrometry (GCMS). Tris (2-butoxyethyl)
phosphate (TBEP) was the pollutant with the highest concentration during both
the rainy season (104±0.5 ng/L, measured at the outlet of Lake Palakpakin) and
during dry season (932±86 ng/L, measured in the middle of Lake Sampaloc).
Chlorpyriphos and cypermethrin were also found in all three lakes. The primary biodegradation
of tris (2-butoxyethyl) phosphate and tris (1, 3-dichloro-2-propyl) phosphate
was studied using fixed bed bioreactor. The half-lives were faster under the
light condition (t1/2= 0.8 and 2 days for TBEP and TDCPP, respectively)
compared with dark condition (t1/2=4.2 and 7 days for TBEP and TDCPP,
respectively).</span></i></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;text-align:justify"><i><span lang="EN-PH" style="font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"> </span></i></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;text-align:justify"><i><span lang="EN-PH" style="font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"> </span></i></p>

<div class="gmail_default" style="font-family:&quot;trebuchet ms&quot;,sans-serif;font-size:small;color:rgb(116,27,71)"><i style="text-align:justify;font-family:arial,sans-serif;color:rgb(34,34,34)"><span lang="EN-PH" style="font-size:12pt;font-family:&quot;Times New Roman&quot;,serif">Keywords:
lake water, biodegradation, pollutants</span></i>​</div><br></div><div><br></div><div><b style="background-color:rgb(255,255,255)"><font color="#0b5394" face="comic sans ms, sans-serif" size="2"><i>Gina Mamauag-Buan</i></font><br></b></div><font face="trebuchet ms, sans-serif" size="1" color="#4c1130"><b style="background-color:rgb(255,255,255)">Chemistry Department<br></b></font><div><font face="trebuchet ms, sans-serif" size="1" color="#4c1130"><b style="background-color:rgb(255,255,255)">Ateneo de Manila University</b></font></div><div><br></div><div><br></div></div></div></div>
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