Pollution Index Chart
The purpose of the Pollution Index Chart helps to tell how clean and healthy the environment is due to the amount of algae. If you do the math which is the number of algae you find divided by five, then only using the a whole number it can divide into multiplied by the number on the pollution index chart, you can figure how polluted the water is. The benefits is you can tell how clean and healthy the environment is, a negative would be is that you're only sampling a portion of the area so the results might not be very accurate. If the numbers that you get from the math are lower than 14 than the pollution is low. If the numbers are 15-19 than the pollution is probable. Lastly, if the number you get is greater than 20 than the pollution is high. If the diversity of algae is low but the population of a certain algae is high the water is polluted. If the diversity of algae is is high but the population is low than the environment is healthier and clean.
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