Air Pollution worksheet - Vanessa Pena

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School

Florida International University *

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Course

1001L

Subject

Biology

Date

Dec 6, 2023

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pdf

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Pena 1 Vanessa Pena EVR 1001 November 1 ,2023 Air Pollution work Sheet Part A – Criteria Pollutants Procedure 1. Each group will be assigned one of the 6 Criteria Pollutants 2. Each group will receive a factsheet of their pollutant (EPA) 3. 15 - 20 minutes of class time will be used for all groups to read through their factsheet together and take notes/highlight: the characteristics of the pollutant, the sources, the impacts to humans, and the impact to the environment. 4. Once the group has finished reading the factsheet, they will select 1 or 2 group members to go to the board and report their findings to the class. 5. Each group should report back: a. the pollutant they got b. the sources of the pollutant c. the impact of the pollutant on the body (circle the area in the human drawing) d. the impact of the pollutant to the environment (may need do an online search) 6. The selected group member(s) will go to the board to share their findings 7. Once the last group has presented, we will write down the cumulative impacts of all the different pollutants on our body in the Data Table (on the next page). Name of the Pollutant Sources Impacts on the body Impacts on the environment Lead (Pb) Lead-acid battery mining, production, and disposal; lead- containing paints and pipes. Hinders the development of the kidneys, neurological system, and brain. Additionally, impacts on the heart and reproductive system as well as an elevated risk of cancer have been linked to lead exposure. Ruins ecosystems, contaminates water and soil, and endangers wildlife. Moreover, can inhibit plant and animal development and reproduction. Sulfur Dioxide (SO₂) Oil refineries, coal- fired power plants, and other industrial establishments. Fine particle inhalation can exacerbate asthma, lead to respiratory and cardiovascular disorders, and raise the risk of heart attacks and strokes. Destroys crops and vegetation, causes acid rain, and endangers wildlife.

Pena 2 Name of the Pollutant Sources Impacts on the body Impacts on the environment Carbon Monoxide (CO) Incomplete burning of fossil fuels, automobile emissions, and tobacco smoke. Lowers the quantity of oxygen that can be transferred to organs and tissues by binding with hemoglobin in the blood. Exposure to carbon monoxide can cause headaches, nausea, dizziness, confusion, and in extreme situations, even death. Increases the atmospheric concentration of greenhouse gases, which contributes to climate change. Particulate Matter (PM) Burning of fossil fuels, manufacturing activities, and wildfires. Fine particle inhalation can exacerbate asthma, lead to respiratory and cardiovascular disorders, and raise the risk of heart attacks and strokes. Particulate matter deposition on water and soil can cause eutrophication, acidification, and other ecological problems. In addition to lowering visibility, pm can accelerate climate change. Nitrogen Dioxide (NO₂) Fossil fuels being burned in automobiles and industrial activities. Can make respiratory conditions—particularly asthma—worse and increase the risk of respiratory infections. Destroys crops and vegetation, causes acid rain, and endangers wildlife. Ground Ozone Sunlight, volatile organic compounds (vocs), and no₂ undergo chemical reactions. Emitted by various sources, including buses, trucks, and autos. Causes respiratory irritation, aggravating asthma, and raising the risk of bronchitis and other respiratory ailments. Harms vegetation and crops, reduces ecological productivity, and endangers wildlife. Furthermore, being a potent greenhouse gas, it has a significant effect on climate change.

Pena 3 Part B – Concentrations of Air Pollutants Estimate the concentration of pollutants in a (1) confined valley and an (2) unconfined valley. Case I - Confined Valley • 1 km = 1000 m • 1 metric ton = 1000 kg • Volume= Length* Width * Depth m 3 • Mass of the air= Volume* Density • Concentration= !"## %& ’() *%++,’"-’ !"## %& ’() ./0 • Part per million (ppm) = 12 %& ’() 3%++,’"-’ 42 %& ’() ./0 Example Case I What is the concentration of the pollutant in a valley, if the total mass of pollutants discharged from the factory chimney (located on the bottom of the valley) is 40 metric tons. The dimensions of the valley are length is 1 km, width is 1 km, and depth is 1 km. The density of the air is 1.2 kg/m³. Express the answer in kg/kg and part per million by mass (ppm). Solution Volume (V) = Length* Width * Depth, so V = 1000 * 1000 * 1000= 1 x 10 9 m 3 Mass of the air = Volume * Density, so Mass of the air = 1 x 10 9 m 3 * 1.2 kg/m 3 = 1.2 x10 9 kg or 1,200,000,000 kg Concentration= !"## %& ’() *%++,’"-’ !"## %& ’() ./0 Concentration= 56,666 42 8,966,666,666 42 = 0.0000333 = 3.3 x 10 -5 kg/kg = 33.3 ppm. Case I Exercises 1. What is the concentration of the pollutants in the valley, if the mass of pollutants that are discharged from the factory chimney, which is located on the bottom of the valley, is 40 tons? The dimensions of the valley are length is 1 km, width is 1 km, and depth is 1 km. The density of the air is 1.2 kg/m³. Express the answer in kg/kg and part per million by mass (ppm). 2. What is the concentration of the pollutants in the valley, if the mass of pollutants that are discharged from the factory chimney, which is located on the bottom of the valley, is 10 tons? The dimensions of the valley are length is 1 km, width is 1 km, and depth is 1 km. The density of the air is 1.2 kg/m³. Express the answer in kg/kg and part per million by mass (ppm). 3. What is the concentration of the pollutants in the valley, if the mass of pollutants that are discharged from the factory chimney, which is located on the bottom of the valley, is 20 tons? The dimensions of the valley are length is 2 km, width is 0.5 km, and depth is 1 km. The density of the air is 1.2 kg/m³. Express the answer in kg/kg and part per million by mass (ppm). 4. What is the concentration of the pollutants in the valley, if the mass of pollutants that are discharged from the factory chimney, which is located on the bottom of the valley, is 50 tons? The dimensions of

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