Chlorophyll is a color pigment found in algae, phytoplankton, and plants. This molecule makes algae and plants the color green. Chlorophyll is used as a photoreceptor in photosynthesis. These photoreceptors absorb light energy, while chlorophyll absorbs energy from sunlight. [1] high levels of chlorophyll would result in high levels of nutrients. Increase levels of these nutrients associated with the occurrence of algal bloom.[2] The increase in nutrients is caused by human activities such as the use of fertilizer for farming, improper sewage of animal farms and burning of fossil fuels.