Environmental Science In-Class Activity #1

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New York University *

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MISC

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Biology

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Jan 9, 2024

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pdf

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Uploaded by AmbassadorAtom5075

Environmental Science In-Class Activity #1 Group Names: Henry, Alvaro, Giuseppe Date: 27/9/23 Directions: Explore this website and answer the questions below based on the neighborhood your group picks. Write in complete sentences and feel free to use additional sources, just make sure to cite them properly. Neighborhood: East Village 1. Most Common tree species and its abundance: (1) - thornless honeylocust - 323 trees, 14% of East Village trees on the map 2. Where is this species native to? Is it invasive to NYC? Defend your answer. (3) - The thornless honeylocust is native to Central North America, originating from Pennsylvania, Nebraska & Texas, more specifically in moist soils of river valleys. - The thornless honeylocust is not classified as an invasive species as it is widely used in urban and suburban landscapes due to its adaptability and aesthetic appeal without causing significant ecological or economic harm, but each location may have different regulations, hence consulting local guidelines to understand the specific classifications and restrictions in a given area. 3. Ecosystem Services: (3) a. Stormwater intercepted each year: - 2,734,067 gallons b. Energy conserved each year: - 1,754,587 kilowatt-hour c. Air pollutants removed each year: - 3,435 pounds d. Carbon dioxide reduced each year: - Not currently being shown on website* e. Total Value of Annual Benefits: - 275,491.23 dollars

4. How do trees remove air pollutants? Which pollutants are being removed in NYC? (5) Trees absorb pollutants such as carbon monoxide, sulfur dioxide, methane and nitrogen dioxide and emit oxygen through photosynthesis. Trees have rid NYC of 3,435 pounds of air pollutants. They intercept PM10 (e.g., dust, ash, pollen, smoke). They transpire water and shade surfaces, which lowers air temperatures, thereby reducing O3 levels. They reduce energy use, which reduces emissions of pollutants from power plants, including NO2, SO2, PM10, and volatile organic compounds (VOCs). They reduce evaporative hydrocarbon emissions and O3 formation by shading paved surfaces and parked cars. 5. Do you think the equations for iTree are accurate? Why or why not? (3) Probably not because it is difficult to measure the monetary benefit of a tree or translating the physical amount of air pollutant/stormwater intercepted to a financial figure. I think total annual benefits are higher than the actual figure as if the east village had no trees we would definitely see a more-than-275,000$ worth of annual harm. Also many more shrubs and smaller plants that contribute to the removal of polluting gasses.

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