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Undergraduate Special Problem

Permanent URI for this collectionhttps://hdl.handle.net/20.500.14583/30

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2002 - 20064

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End date: 2009SDG: search.filters.sdg.SDG 6 - Clean water and sanitation

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    Gross alpha and gross beta radioactivity and heavy metal concentration profiles of well water of the Calahunan dump site, Mandurriao, Iloilo City
    Amarante, Hena Charma; Basquez, Mark Anthony; Brunio, Christian Allan; Dable, Nesel; De la Pena, Pamela-Di; Genterola, Janis; Oredina, Josette Marie; Padayhag, Dave (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2005-03)
    The study aimed to establish presence of radioactivity and concentration of heavy metals specifically lead and chromium in drinking water from wells within one-kilometer radius from the approximated center of the Calahunan dump site. Results showed that four out of twelve wells have positive results fro gross alpha activity and gross beta activity: wells 2A, 2C, 3A, and 3D. Well 2A, 2C and 3D registered alpha activities of 0.54, 0.033 and 0.369 Bq/L respectively while Well 3A registered beta activity of 1.0 Bq/L. Wells 2A and 3D exceeded the radiological limits set by WHO and PNSDW of 0.1 Bq/L for alpha activity and 1.0 Bq/L for beta activity. These wells that are found adjacent to the perimeter fence of the dump site registered alpha activity (wells 2A, 2C and 3D) and beta activity (well 3A). Radiological activities in all other wells sampled registered less than lower limit of detection. For gamma activity, all wells recorded 137- Cs and 134-Cs activity less than the lower limit of detection. For chromium and lead concentration using FAAS, only well 3C has a chromium concentration of 0.0952 ppm and this exceeded the PNSDW standard for chromium in drinking water (0.05 ppm) FAAS has not recorded any value for lead. For chemical constituent analysis using XRF, two wells in zone 1 (LA and IC), have recorded lead concentration of 0.9 and 0.136 ppm, respectively. In zone two, only well 2D registered a lead concentration of 0.248 ppm. In zone 3, well 3C registered a lead concentration of 0.397 ppm. For chromium concentration, only well 2A in zone 2 has a chromium concentration of 1.79 ppm. The spot interview and ocular inspection found out that the following garbage are disposed of indiscriminately tn the dump site: (1) Television picture tubes, (2) Dysfunctional Computer Monitors, (3) Used syringes and needles, (4) Hospital wastes, (5) Automobile batteries and dry cells, (6) scrap iron, tin cans, paint cans, paint cans, etc., (7) polyethylene bottle, glass bottles, and containers of similar types, and (8) other organic and inorganic wastes. Wells whose values for gross alpha, lead, and chromium concentration exceeded the standard are unsuitable for dinking and other domestic uses. The observation that wells (2A and 3D) near the Calahunan dump site registered higher-than-standard alpha activity may be a good basis to conduct further research particularly on the effect of leachate from dump site.
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    Prevalence of Ascaris lumbricoides, Trichuris trichiura, and Enterobius vermicularis in the hands of preschool children in day care centers in Miagao, Iloilo
    Abellon, Rupert L., III (Division of Biological Sciences, Bachelor of Science in Public Health, University of the Philippines Visayas, 2002-03)
    The hands of 199 preschool children in Day Care Centers of Miag-ao, Iloilo were swabbed and examined for the presence of parasitic ova, specifically soil-transmitted parasites. Prevalence rates of parasitic ova were determined and tested for significant differences with variables that include age, sex, parent’s educational level, and location of the day care center of the preschoolers. Ascaris had a prevalence rate of 24.12% (48), Enterobius with 1.51% (3) and Trichuris with 1.01% (2). Toxocara canis had a 6.03% prevalence (12) in the hands of preschoolers. Using the Chi-square test to test for differences, it was shown that there were no significant differences in the presence of parasitic ova in the hands among preschoolers with regards to age, sex, and parent’s educational level except for location of the day care center. There was a significant difference in the prevalence rate of parasitic ova in the hands of preschoolers in coastal areas and those in non-coastal areas. Preschoolers in the coastal areas had a higher prevalence rate (29.82%) compared to those in the non-coastal areas (16.47%). With a sample of 121 stools from the same group of preschoolers, the study showed that there was no direct association between the presence of Ascaris ova in the hands and their presence in stools.
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    Microbiological water analysis of selected point sources in Iloilo City
    Alama, Jannie Mae G.; Calitis, Ma. Socorro Fatima P.; Cervantes, Ria Angela E.; Garcia, Marian Aisa C.; Otico, Pelita A.; Pacheco, Donna Ginn G.; Taquiso, Jezreel l. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2006-04)
    The recreational use of the Iloilo River according to the Iloilo River Master Plan entails various studies to support it being safe for swimming and other activities. The Department of Environment and Natural Resources (DENR) Region VI has done very few studies to determine this particular aspect of the Iloilo River. Thus, the present study was conducted to determine the bacteriologic content of water in selected point sources in Iloilo River, Iloilo City and the possible correlations to the incidence of health risks. Specifically the study aims to: (1) determine significant differences in the physico-chemical characteristics of water samples from each point source; (2) to determine the total and fecal coliform counts number for each water sample from the selected point sources; (2) detect the presence or absence of E. coli, Salmonella spp., and culturable Vibrios in water in selected point sources; (3) describe the incidence of health risks; and (4) correlate the heterotrophic plate count for total coliforms, Most Probable Number for Fecal Coliforms and the number of symptomatic respondents. The results of the study showed that the total coliform count for Point source A (HPC=6000/l00 ml) is higher compared to the standard set by the DENR (5000/100 ml) while Point source B and C are within the range. The concentrations of E. coli, in water samples A, B, and C (2400 MPN/100 ml sample) were found to be higher than the DENR standard for fecal coliforms for Class C Waters - fresh water, (200 MPN/lOOml sample). Although results indicate that the river water has high fecal contamination, there were no significant correlations between heterotrophic plate counts, Most Probable Number for Fecal Coliforms and the number of symptomatic respondents for each point source.
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    Intestinal parasitic infections in children living in selected barangays with urban slums along Iloilo River
    Aguro, Eric D.; Banaag, Arlene D.; Jacobe, Venus N.; Ordaniel, Lilac Mared A.; Taleon, Kathleen Joy B.; Yandra, Marnelle Gay A. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2006-03)
    This cross-sectional study was performed to determine the intestinal parasitic infection in children age 0-13 years old in three selected barangays with urban slums located alongside Iloilo River. A total of 127 stool samples from 65 males and 62 females were examined by utilizing formalin-ether concentration technique (FECT) and direct wet mount thereafter using Lugol's solution. It was found out that 59.8% of the children examined were positive for one or more intestinal parasites. The most frequent soil-transmitted helminth observed was Ascaris lumbricoides (48.0%) followed by Trichuris trichiura (34.6%). Pathogenic protozoans determined were Entamoeba histolytica (9.4%) and Giardia lamblia (0.8%). Other nonpathogenic species identified were Entamoeba coli (15.7%), Blastocystis hominis (3.1%) and lodamoeba butschlii (0.8%). Parasitic infection with single species had the highest frequency of 31.5% compared to multiple infection (28.3%). The relatively high prevalence of these infections among children living three selected barangays with urban slums alongside Iloilo River was found to be independent of factors the respondents’ sex (p=0.106), age group (p=1.691), and consistency of stool sample (p=1.835). Moreover, the degree of infection in terms of sex (p=3.174), age (p=9.136), and consistency of stool samples (p=2.798) were not statistically different from each other. The high prevalence rate of pathogenic intestinal parasitic infection may have also been influenced by factors other than the ones considered, such as environmental and socio-demographic factors. The study highly suggests mass treatment and preventive measures such as health education of the community