LYCEUM OF THE PHILIPPINES UNIVERSITY College of Arts and Sciences Natural Science Department Field Survey in ENVN01A (Environmental Science) Section: H-124Date: February 26, 2012 Group No. :Professor: Ms. Anita Sarmago Members: ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ Part I. Visit to Material Recovery Facilities (MRF) of San Pablo Objectives: a. Familiarize oneself to the structures and components to MRF. .
Identify the different recyclable materials being processed inside an MRF. c. In still in the minds and hearts of the students the importance of recycling. Activity Guide 1. Take pictures of the structure and divisions of the MRF of San Pablo, Laguna. Indicate the location of the different types of recyclable materials collected from the community.
2. During the tour at the facility, identify and enumerate the materials found inside the MRF. Handpicked personally the materials for proper identification. Ask for assistance if necessary from the facilitator.Recyclable MaterialsTypeExample/Producers/Source Non-Biodegradable/ Recyclable Plastic 1. Polyethylene TerephthalateMineral water bottle 2.
PolypropyleneTupperware 3. PolypropyleneMicrowavable trays 4. High Density PolyethyleneShampoo bottle 5. High Density PolyethyleneMilk bottle Metals 1. IronIron 2.
CopperCopper 3. AluminumAluminum 4. NickelNickel Glass 1. Clear glassWine bottle 2. Lead glassVase 3. Transparent glassShattered glass Paper 1.
White paperWhite paper 2. Specialty paperColored paper 3. Oriental paperCarton BiodegradableMaterials 1. FruitsPeel or skin 2.
VegetablesCabbages, carrots etc.. 3. FishFish Part II. Assessment of the Sampaloc Lake Objectives: a.
Identify the physical structure of lakes as an ecosystem. b. Familiarize oneself with the different stages of lake succession and understand the factors that influence it. c. Determine the impact of human activities on lakes and other types of water bodies and recognize the importance of lakes in the survival of many organisms. Activity Guide 1.
Make a physical description of the lakes of San Pablo.Make a photo documentation of some of the distinct features of the lakes. PANDIN LAKE BUNOT LAKE SAMPALOC LAKE 2. Based on the physical observation on the lake, classify the lake according to the following criteria: Nutrient Enrichment StageDescription/Indicator OligotrophicLow in dissolved nutrient, high level of oxygen, low primary productivity.
Less photosynthetic organisms found in the lake, water color is pale to clear and deep water. MesotrophicHas a moderate plant growth, planktons are visible but not numerous as compared with Eutrophic lakes.Mesotrophic lakes are the intermediate between oligotrophic and eutrophic lakes. EutrophicHigh level of dissolved nutrients, high biological production, usually the color of the water is brackish green, usually shallow.
•Pandin Lake is an Oligotrophic type of lake because of its rich and pure water. Likewise, the water is very clean and not much organisms were found. •Bunot Lake is also an Oligotrophic type of lake because of its clear and deep water. •Sampaloc Lake is an example of a Mesotrophic lake because hey have a moderate amount of dissolved nutrients.
3. Make an observation on the various pollutants identified/observed from the lakes. Pollutants/Contaminants IdentifiedPossible SourcesPossible Impact/Effect IronNatural depositsStaining of laundry, plumbing, appliances MercuryCrops runoff, natural depositsKidney disorders Total Dissolved SolidErosion of mineral depositsGastrointestinal irritation in some individuals TurbiditySoil runoffInterferes with disinfection and filtration ToxapheneInsecticide formerly used on cattle, cotton, soybeansCancer . Make a community interview or observation on how the people interact with the lakes. Identify the importance and function of the lake to human culture and civilization.
Summarize your findings. - Large lakes and reservoirs are used as drinking water supplies. It is very important because it is used by humans for many commercial purposes like fishing, transportation and industrial water supplies. Also, they moderate temperatures and affect the climate of the surrounding land. Lakes are the best source of freshwater on the Earth's surface.
