REFERENCES

Abdullahi, M. S. (2015). Chapter 18 - Soil Contamination, Remediation and Plants: Prospects and Challenges. Soil Remediation and Plants, 525-546. https://doi.org/10.1016/B978-0-12-799937-1.00018-8
Abubacker, M. N., & Sathya, C. (2017, September 26). In vitro Bioaccumulation of Heavy Metals by Water Lettuce Pistia stratiotes Engl (Araceae) and its Combustion Process as Manure Value by SEM-EDX Analysis. https://www.academia.edu/34680660/In_vitro_Bioaccumulation_of_Heavy_Metals_by_Water_Lettuce_Pistia_stratiotes_Engl_Araceae_and_its_Combustion_Process_as_Manure_Value_by_SEM_EDX_Analysis
Agency for Toxic Substance and Disease Registry. (n.d.). Copper. https://wwwn.cdc.gov/Tsp/ToxFAQs/ToxFAQsDetails.aspx?faqid=205&toxid=37
Agilent. (n.d.). Atomic Absorption Spectroscopy, How Does AAS Work, AAS FAQs. Agilent. https://www.agilent.com/en/support/atomic-spectroscopy/atomic-absorption/flame-atomic-absorption-instruments/how-does-aas-work-aas-faqs
Ali, H., Khan, E., and Sajad, M. A. (2013). Phytoremediation of heavy metals-concepts and applications. Chemosphere 91, 869–881. doi: 10.1016/j.chemosphere.2013.01.075. https://www.sciencedirect.com/science/article/abs/pii/S0045653513001914
Al-Saydeh, El-Naas, & Zaidi. (2017). Copper removal from industrial wastewater: A comprehensive review. ScienceDirect. https://www.sciencedirect.com/science/article/abs/pii/S1226086X17303969
Atienza, L. W. (2018, April 8). Under the murky depths: What’s in the Pasig River? FlipScience. https://www.flipscience.ph/news/features-news/features/whats-in-the-pasig-river/
Bandehali, S., Mihri, T., Onyeaka, H., & Kumar, P. (2021, April 9). Current state of indoor air Phytoremediation using potted plants and green walls. MDPI. https://www.mdpi.com/2073-4433/12/4/473
Beers, B. (2023, March 28). P-Value: What It Is, How to Calculate It, and Why It Matters. Investopedia. https://www.investopedia.com/terms/p/p-value.asp
Bell-Young, L. (2018, November 8). Can I Use Deionised Water Instead of Distilled Water? Chemicals UK. https://www.chemicals.co.uk/blog/deionised-water-or-distilled-water
Benzaoui, T., Selatnia, A., & Djabali, D. (2018). Adsorption of copper (II) ions from aqueous solution using bottom ash of expired drugs incineration. Adsorption Science & Technology, 36(1-2), 114-129.
Bhandari, P. (2022, October 17). Between-Subjects Design | Examples, Pros & Cons. Scribbr. https://www.scribbr.com/methodology/between-subjects-design/
BioSTATS. (n.d.). Post-hoc tests. bioST@TS. https://biostats.w.uib.no/post-hoc-tests/
C. Larino, R. ., & M. Castañares, J. . (2019). The Effect of Pulang-Bato Spring on the Levels of Copper and Zinc at the Zone of Impact of the Spring and a Section of Butuanon River. International Journal of Sciences: Basic and Applied Research (IJSBAR), 48(6), 82–107. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/10337
ChemREADY, (n.d.). pH Adjusters for Water Treatment. https://www.getchemready.com/ph-adjusters-for-water-treatment/#:~:text=What%20chemicals%20are%20used%20to,application%20the%20more%20heat%20generated.
Chong, W., Lim, M., & Pang, Y. (2019, September). Adsorptive membranes for heavy metal removal – A mini review. ResearchGate. https://www.researchgate.net/publication/335912299_Adsorptive_membranes_for_heavy_metal_removal_-_A_mini_review
Choueiry, G. (n.d). Posttest-Only Control Group Design: An Introduction. https://quantifyinghealth.com/posttest-only-control-group-design/
Combiths, S. (2022, September 8). Heartleaf Philodendron Plant Care. Apartment Therapy. https://www.apartmenttherapy.com/philodendron-plant-heartleaf-care-growing-toxicity-256104
Cule, N., Vilotic, D., Nesic, M., Veselinovic, M., Drazic, D., & Mitrovic, S. (2016, January). Phytoremediation potential of Canna indica L. in water contaminated with lead. Fresenius Environmental Bulletin.
https://www.researchgate.net/publication/311434801_Phytoremediation_potential_of_Canna_indica_L_in_water_contaminated_with_lead
Cuppett, J. D., Duncan, S. E., & Dietrich, A. M. (2006). Evaluation of copper speciation and water quality factors that affect aqueous copper tasting response. Chemical senses, 31(7), 689–697. https://doi.org/10.1093/chemse/bjl010
Denchak, M. (2022, April 18). Water Pollution Definition, Causes, Effects, Facts, Types, and Prevention. NRDC. https://www.nrdc.org/stories/water-pollution-everything-you-need-know
Diwa, R., Deocaris, C., Belo, L. (2021, June 18) River Influx Drives Heavy Metal Pollution in Manila Bay, Philippines: An Insight from Multivariate Analyses.  https://doi.org/10.20944/preprints202106.0470.v1
Dortwegt, R., & Maughan, E.V. (2001). The chemistry of copper in water and related studies planned at the Advanced Photon Source. In PACS2001. Proceedings of the 2001 Particle Accelerator Conference (Vol. 2, pp. 1456-1458). IEEE. 10.1109/PAC.2001.986712
Dyer, M. H. (2020, December 9). Can a Pothos Live In Water: Growing Pothos In Water Vs. Soil. Gardening Know How. https://www.gardeningknowhow.com/houseplants/pothos/pothos-in-water.htm 
EPA. (2022, May 24). How We Use Water | US EPA. Environmental Protection Agency. https://www.epa.gov/watersense/how-we-use-water#Understanding%20Water%20Use
Flora Fauna Web. (2021). NParks | Philodendron hederaceum var hederaceum. National Parks Board. https://www.nparks.gov.sg/florafaunaweb/flora/4/5/4551
Gawronski, S. W., Gawronska, H., Lomnicki, S., Sæbo, A., & Vangronsveld, J. (2017). Plants in air phytoremediation. In Advances in botanical research (Vol. 83, pp. 319-346). Academic Press.
Greentumble. (2015, October 19). Causes of Water Pollution in the Philippines. Greentumble. https://greentumble.com/water-pollution-in-the-philippines-causes-and-solutions/
Greipsson, S. (2011, January). Phytoremediation. https://www.researchgate.net/publication/270279766_Phytoremediation
Hanks, N. A., Caruso, J. A., & Zhang, P. (2015). Assessing Pistia stratiotes for phytoremediation of silver nanoparticles and Ag(I) contaminated waters. Journal of Environmental Management, 164, 41–45. doi:10.1016/j.jenvman.2015.08.026
Hartmann, K., Krois, J., Waske, B. (2018): E-Learning Project SOGA: Statistics and Geospatial Data Analysis. Department of Earth Sciences, Freie Universitaet Berlin.
Imadi, S., Shah, S., & Kazi, A. (2016). Phytoremediation of Saline Soils for Sustainable Agricultural Productivity. ScienceDirect. https://www.sciencedirect.com/science/article/pii/B9780128031582000187
It’s Learnable (2021, August). Lab Skills: Preparing Stock Solutions [Video file]. YouTube. 
Khan, Y., Hussain, A., Mulk Khan, S., Farzana, K., & Ahmad, Z. (2022). Agronomic and biochemical characteristics of Pteris vittata L. under the impact of chromium stress. In Natural Resources Conservation and Advances for Sustainability (pp. 481-491). Elsevier. https://doi.org/10.1016/B978-0-12-822976-7.00030-2
Khandare, R. V., Watharkar, A. D., Pawar, P. K., Jagtap, A. A., & Desai, N. S. (2021). Hydrophytic plants Canna indica, Epipremnum aureum, Cyperus alternifolius and Cyperus rotundus for phytoremediation of fluoride from water. Environmental Technology & Innovation, 21, 101234. https://www.sciencedirect.com/science/article/pii/S2352186420315340
Klavina, A., Berzina, B., Fjodorova, M., Martinsone, Z., (2022, January 26). SINTEF Open: Green Plant Walls as Indoor Air Quality Enhancer in the Recently Built Office Building. https://sintef.brage.unit.no/sintef-xmlui/handle/11250/2839338
Kumar, V., Singh, J., Saini, A., & Kumar, P. (2019, February 22). Phytoremediation of copper, iron and mercury from aqueous solution by water lettuce (Pistia stratiotes L.). Environmental Sustainability, 2(1), 55-65. https://doi.org/10.1007/s42398-019-00050-8
Maiti, S. K., Ghosh, D., & Raj, D. (2022). Phytoremediation of fly ash: Bioaccumulation and translocation of metals in natural colonizing vegetation on fly ash lagoons. Handbook of Fly Ash, 501-523. https://doi.org/10.1016/b978-0-12-817686-3.00011-6
Mayers, K. (2023, March 23). Philodendron Hederaceum 'Heartleaf' care guide (2023). Garden Pals. https://gardenpals.com/heartleaf-philodendron/
Meijer, L., Emmerik, T., Van Der Ent, R., & Schmidt, C. (2021, April 30). More than 1000 rivers account for 80% of global riverine plastic emissions into the ocean. ScienceAdvances. https://www.science.org/doi/10.1126/sciadv.aaz5803
Memon, A. R., Kusur, F., & Memon, M. (2021, January). Metal Hyperaccumulator Plants and Their Role in Phytoremediation. Phytoremediation for Environmental Sustainability, 1-24. 10.1007/978-981-16-5621-7_1
Mosoarca, G., Vancea, C., Popa, S., & Boran, S. (2018, March 20). Adsorption, Bioaccumulation and Kinetics Parameters of the Phytoremediation of Cobalt from Wastewater Using Elodea canadensis. SpringerLink. https://link.springer.com/article/10.1007/s00128-018-2327-3
Nassef, E., & El-Taweel, Y. A. (2015). Removal of copper from wastewater by cementation from simulated leach liquors. Journal of Chemical Engineering & Process Technology. http://dx.doi.org/10.4172/2157-7048.1000214
NC STATE EXTENSION. (n.d.). Epipremnum aureum (Devil’s Ivy, Devil’s Vine, Golden Pothos, Ivy Arum, Marble Queen, Pothos, Taro Vine) | North Carolina Extension Gardener Plant Toolbox. North Carolina Extension Gardener Plant Toolbox. https://plants.ces.ncsu.edu/plants/epipremnum-aureum/
Niu, G., Masabni, J. (2022). Chapter 9 - Hydroponics. Plant Factory Basis, Applications and Advances, 153-156. https://doi.org/10.1016/B978-0-323-85152-7.00023-9
Novita, V. Z., Moersidik, S. S., & Priadi, C. R. (2019, November). Phytoremediation potential of Pistia stratiotes to reduce high concentration of copper (Cu) in acid mine drainage. In IOP Conference Series: Earth and Environmental Science. IOP Publishing. doi: 10.1088/1755-1315/355/1/012063 
Odjegba, V. J., & Fasidi, I. O. (2004). Accumulation of trace elements by Pistia stratiotes: implications for phytoremediation. Ecotoxicology, 13(7), 637-646. https://doi.org/10.1007/s10646-003-4424-1
Ojuederie, O., Amoo, A., Owonubi, S., & Ayangbenro, A. (2022). Nanoparticles-assisted phytoremediation: Advances and applications. ScienceDirect. https://www.sciencedirect.com/science/article/pii/B9780128228937000112
Paronda, David, & Apodaca. (2019). River flow pattern and heavy metals concentrations in Pasig River, Philippines as affected by varying seasons and astronomical tides. IOPScience. https://iopscience.iop.org/article/10.1088/1755-1315/344/1/012049/meta
Perelonia, K. B., Rana, J., & Opinion, A. G. (n.d.). Heavy Metal Contamination in Water and Fishery Resources in Manila Bay Aquaculture Farms. AquaDocs. https://aquadocs.org/handle/1834/41169
Plant Index. (2022, April 1). Can you grow philodendrons in water? https://www.plantindex.com/growing-philodendrons-water/
Rao, Panigrahi, & Velraj. (2022). Transport and disposal of radioactive wastes in nuclear industry. ScienceDirect. https://www.sciencedirect.com/science/article/pii/B9780323854559000278
Reeves, R., Baker, A., Jaffre, T., Erskine, P., Echevarria, G. (2017, November 15). A global database for plants that hyperaccumulate metal and metalloid trace elements. 397-400.  https://doi.org/10.1111/nph.14907
Renbarger, R., Morgan, G. (n.d). The SAGE Encyclopedia of Educational Research, Measurement, and Evaluation. 1279. https://methods.sagepub.com/reference/the-sage-encyclopedia-of-educational-research-measurement-and-evaluation/i16244.xml#:~:text=The%20posttest%2Donly%20control%20group,after%20the%20treatment%20or%20intervention.
Rhode, T. (2023, April 14). How to grow and care for philodendron. Gardener's Path. https://gardenerspath.com/plants/houseplants/grow-philodendron/
Roy, & Pandey. (2020). Role of microbes in grass-based phytoremediation. ScienceDirect. https://www.sciencedirect.com/science/article/pii/B9780128177327000158
Royal Society of Chemistry. (n.d.). Acid digestion. Royal Society of Chemistry. https://www.rsc.org/publishing/journals/prospect/ontology.asp?id=CMO%3A0001491&MSID=B
Saber, A., Tafazzoli, M., Mortazavian, S., & James, D. (2018, February 1). Investigation of kinetics and absorption isotherm models for hydroponic phytoremediation of waters contaminated with sulfate. ScienceDirect. https://www.sciencedirect.com/science/article/pii/S0301479717311143
Saha, D., & Grappe, H. A. (2017). Adsorption properties of activated carbon fibers. ScienceDirect. https://www.sciencedirect.com/science/article/pii/B9780081006603000055
Sargen, M. (2019, September 26). Biological Roles of Water: Why is water necessary for life? - Science in the News. Science in the News. https://sitn.hms.harvard.edu/uncategorized/2019/biological-roles-of-water-why-is-water-necessary-for-life/
Sharma, P., Bauddh, K., & Korstad, J. (2021). Efficient utilization of plant biomass after harvesting the phytoremediator plants. ScienceDirect. https://www.sciencedirect.com/science/article/pii/B9780128212004000030
Singer, M., Pedroso-de-Lima, A., Tanaka, N., & González-López, V. (2006, September 29). To triplicate or not to triplicate? IME-USP – Instituto de Matemática e Estatística da Universidade de São Paulo. https://www.ime.usp.br/~jmsinger/MAE5705/Singer&al2007CILS.pdf
Soil Lab Modules. (n.d.). Trace Elements. Soil Lab Modules. https://labmodules.soilweb.ca/trace-elements/
Speight, J. G. (2017). Removal of Inorganic Compounds From the Environment. Environmental Inorganic Chemistry for Engineers. https://www.sciencedirect.com/science/article/pii/B9780128498910000096?via%3Dihub
Srivastava, S., Anand, V., Singh, P., Roy, A., Pallavi, S., Bist, V., Kaur, J., Srivastava, S., Katiyar, R., & Srivastava, S. (2021). Chapter 16 - Microbial systems as a source of novel genes for enhanced phytoremediation of contaminated soils. Microbe Mediated Remediation of Environmental Contaminants, 177-198. https://doi.org/10.1016/B978-0-12-821199-1.00016-X
Statistics Solutions. (n.d.). Conduct and Interpret a One-Way ANOVA. Statistics Solutions. https://www.statisticssolutions.com/free-resources/directory-of-statistical-analyses/one-way-anova/
Suárez, G. P., & Pérez, L. (2021, June 4). Removal of Volatile Organic Compounds by Means of a Felt-Based Living Wall Using Different Plant Species. MDPI. https://www.mdpi.com/2071-1050/13/11/6393/htm
Sundararaman, S.; Senthil Kumar, P.; Deivasigamani, P.; Jagadeesan, A.K.; Devaerakkam, M.; Al-Hashimi, A.; Choi, D. (2021)  Assessing the Plant Phytoremediation Efficacy for Azolla filiculoides in the Treatment of Textile Effluent and Redemption of Congo Red Dye onto Azolla Biomass. Sustainability, 13, 9588. https://doi.org/10.3390/su13179588
Swain, G., Adhikari, S., & Mohanty, P. (2014, January). Phytoremediation of Copper and Cadmium from Water Using Water Hyacinth, Eichhornia Crassipes. International Journal of Agricultural Science and Technology, 2(1). https://www.researchgate.net/publication/270559304_Phytoremediation_of_Copper_and_Cadmium_from_Water_Using_Water_Hyacinth_Eichhornia_Crassipes
Sytar, O., Ghosh, S., Malinska, H., Zivcak, M., & Brestic, M. (2020). Physiological and molecular mechanisms of metal accumulation in hyperaccumulator plants. Physiologia Plantarum. https://pubmed.ncbi.nlm.nih.gov/33219524/
Thani, N., Ghazi, & Wahab. (2020, September 27). Optimization of Phytoremediation of Nickel by Alocasia puber Using Response Surface Methodology. MDPI. https://www.mdpi.com/2073-4441/12/10/2707/htm
Thermo Fisher Scientific. (n.d.). Atomic absorption spectrometry (AAS) information. https://www.thermofisher.com/ph/en/home/industrial/spectroscopy-elemental-isotope-analysis/spectroscopy-elemental-isotope-analysis-learning-center/trace-elemental-analysis-tea-information/atomic-absorption-aa-information.html
Tiwari, J., Sweta, A., Kumar, S., Korstad, J., & Bauddh, K. (2019). Ecorestoration of Polluted Aquatic Ecosystems Through Rhizofiltration. Phytomanagement of Polluted Sites, 179-201. https://doi.org/10.1016/B978-0-12-813912-7.00005-3
Uddin, A. H., Khalid, R. S., Alaama, M., Abdualkader, A. M., Kasmuri, A., & Abbas, S. A. (2016, January 30). Comparative study of three digestion methods for elemental analysis in traditional medicine products using atomic absorption spectrometry. Journal of Analytical Science and Technology, 7. https://jast-journal.springeropen.com/articles/10.1186/s40543-016-0085-6
UN Environment. (n.d.). Heavy Metals | The Caribbean Environment Programme (CEP). UNEP. https://www.unep.org/cep/heavy-metals
Usman, K., Al-Ghouti, M., & Abu-Dieyeh, M. (2019). The assessment of cadmium, chromium, copper, and nickel tolerance and bioaccumulation by shrub plant Tetraena qataranse. PubMed Central (PMC). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449511/
Van den Berg. (n.d.). SPSS one-way ANOVA - Beginners tutorial. SPSS tutorials | The Ultimate Guide to SPSS. https://www.spss-tutorials.com/spss-one-way-anova/
Veselý, T., Tlustoš, P., & Száková, J. (n.d.). Organic Acid Enhanced Soil Risk Element (Cd, Pb and Zn) Leaching and Secondary Bioconcentration in Water Lettuce (Pistia Stratiotes L.) in the Rhizofiltration Process. International Journal of Phytoremediation, 14:4, 335-349. 10.1080/15226514.2011.620650
Water.Org. (2022). Philippines Water Crisis - Water In The Philippines 2022. Water.org. https://water.org/our-impact/where-we-work/philippines/
Weyens, N., Thijs, S., Popek, R., Witters, N., Przybysz, A., Espenshade, J., Gawronska, H., Vangronsveld, J., and Gawronski, S. W. (2015). “The role of plant-microbe interactions and their exploitation for phytoremediation of air pollutants,” Int. J. Mol. Sci. 16(10), 25576-25604. https://doi.org/10.3390/ijms161025576
Zayed, A., Gowthaman, S., & Terry, N. (1998, May). Phytoaccumulation of Trace Elements by Wetland Plants: I. Duckweed.