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CHEM1001-2020-Lab2-Worksheet.pdf
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Name (First & Last): CHEM 1001, Fall 2020, Lab #2 – The Air We Breathe

LAB ASSIGNMENT WORKSHEET This is what you will upload to Canvas, as a single PDF file, for your TA to grade. Questions and Data Tables:

Part 1: Gases and Combustion In your lab section, you will watch a series of experiment videos with your TA. Complete the table below, describing what happened in each video experiment and your explanation of why what happened in the video, happened:

Data Table #1: Combustion Situations

Experiment What Happened? Your Explanation of WHY What Happened, Happened

Glowing splint in the

presence of oxygen (O2)

Glowing splint in the

presence of hydrogen (H2)

Glowing splint in the

presence of carbon dioxide

(CO2)

Approximately 78% of air is nitrogen gas

(N2). How does N2 gas impact

combustion?

Hypothesis (Prediction ) What Happened? Was your hypothesis correct or incorrect?

Part 2: Air Quality 1) As part of your pre-lab, you read the NPR article: “1 in 7 Americans Have Experienced Dangerous Air Quality Due to Wildfires This Year”.

• What was the most interesting thing, and what was the most surprising thing that you learned from reading this article?

• What was the AQI value for PM2.5 on September 11, 2020 in Marion County, Oregon? What is surprising about this AQI value?

This article references air quality data from the U.S. Environmental Protection Agency. I used this air quality data to create two data sets:

• 2019: Air Quality Index Daily Values Report for the Denver, Aurora, and Lakewood areas of Colorado for each of the top 5 pollutants we have been learning about in class (O3, PM2.5, SO2, NO2, PM10, and CO).

• 2020: Air Quality Index Daily Values Report for the Denver, Aurora, and Lakewood areas of Colorado for each of the top 5 pollutants we have been learning about in class (O3, PM2.5, SO2, NO2, PM10, and CO).

You will use the air quality data and the AQI chart below, to calculate the total number of days that each pollutant was in the good, moderate, unhealthy for sensitive groups, unhealthy, very unhealthy and hazardous air quality conditions for the Denver, Aurora, and Lakewood areas of Colorado.

AQI Chart

3) Complete Data Table #2, using the provided 2019 data.

Data Table #2: Denver Metro Area – 2019 Air Quality Summary

Air Quality Condition Ozone PM2.5 SO2 NO2 PM10 CO

Good

Moderate

Unhealthy for Sensitive Groups

Unhealthy

Very Unhealthy

Hazardous

4) Complete Data Table #3, using the provided 2020 data.

Data Table #3: Denver Metro Area – 2020 Air Quality Summary

Air Quality Condition Ozone PM2.5 SO2 NO2 PM10 CO

Good

Moderate

Unhealthy for Sensitive Groups

Unhealthy

Very Unhealthy

Hazardous

5) Go to the website below, to generate your own data for a location of your choosing. • https://www.epa.gov/outdoor-air-quality-data/air-quality-index-daily-values-report

• For “Pollutant”, select “All AQI Pollutants” • For “Year”, select “2020” • For “Geographic Area”, select the city that is closest to your hometown. Note: If your hometown is Denver, Aurora, or Lakewood, OR if your hometown is in another county, select the city whose air quality you are most interested in learning more about, or the city in the US that you last went to for vacation. • Click “Generate Report” • After the report is generated, click “Download PDF (printable page)” • Keep this report, as you will upload it to Canvas!

6) Which city did you select to generate your own data and why did you select that city?

City Selected

Reason for Selecting that City

4) Complete Data Table #4, using the data you generated for your city of choice Data Table #4: 2020 Air Quality Summary for ____________________

Air Quality Condition Ozone PM2.5 SO2 NO2 PM10 CO

Good

Moderate

Unhealthy for Sensitive Groups

Unhealthy

Very Unhealthy

Hazardous

Note: As the EPA website shares: AirData reports are produced from a direct query of the AQS Data Mart. The data represents the best and most recent information available to EPA from state agencies. Some values may be absent due to incomplete reporting, and some values may change due to quality assurance activities. The AQS database is updated by state, local, and tribal organizations who own and submit the data. If your city has absent data for an entire pollutant column, complete Data Table #4 by writing “N/A” in the pollutant column(s) that your city did not have reported data.

7) Which year, 2019 or 2020, did the Denver Metro area have worse air quality? How did you come to that conclusion? Use your completed Data Table #2 and Data Table #3 to support your answer.

8) In 2020, which location had worse air quality – the Denver metro area, or the city that you chose to evaluate? Support your answer using Data Table #3 and Data Table #4. 9) For the city you identified as having worse air quality (the Denver Metro area or the city that you chose to evaluate), use your google search skills from Laboratory #1 to find a reason (or reasons) as to why one city had worse air quality than the other in 2020. In your answer, include your hypothesis as to why the city had worse air quality than the other and also include the google search method that you used and the links to any sources that you found to help develop your hypothesis. Hint: Has there been anything reported in the news that supports large numbers of unhealthy air days in 2020, has there been any change in environmental policy for the city during 2020, etc?

10) Create 3 bar graphs to display your air quality data from Data Tables #2 – #4. Insert your graphs in the spaces below. When choosing how to create and design your graphs, make sure to think about the best way to organize and display your data and do not forget your axis labels and graph titles. Note: If you cannot insert your graphs in the spaces below, it is fine to add them to the last page(s) of your Lab 2 Worksheet.

  1. What HappenedGlowing splint in the presence of oxygen O2:
  2. Your Explanation of WHY What Happened HappenedGlowing splint in the presence of oxygen O2:
  3. What HappenedGlowing splint in the presence of hydrogen H2:
  4. Your Explanation of WHY What Happened HappenedGlowing splint in the presence of hydrogen H2:
  5. What HappenedGlowing splint in the presence of carbon dioxide CO2:
  6. Your Explanation of WHY What Happened HappenedGlowing splint in the presence of carbon dioxide CO2:
  7. Hypothesis Prediction Approximately 78 of air is nitrogen gas N2 How does N2 gas impact combustion:
  8. What Happened Was your hypothesis correct or incorrectApproximately 78 of air is nitrogen gas N2 How does N2 gas impact combustion:
  9. OzoneGood:
  10. PM25Good:
  11. SO2Good:
  12. NO2Good:
  13. PM10Good:
  14. COGood:
  15. OzoneModerate:
  16. PM25Moderate:
  17. SO2Moderate:
  18. NO2Moderate:
  19. PM10Moderate:
  20. COModerate:
  21. OzoneUnhealthy for Sensitive Groups:
  22. PM25Unhealthy for Sensitive Groups:
  23. SO2Unhealthy for Sensitive Groups:
  24. NO2Unhealthy for Sensitive Groups:
  25. PM10Unhealthy for Sensitive Groups:
  26. COUnhealthy for Sensitive Groups:
  27. OzoneUnhealthy:
  28. PM25Unhealthy:
  29. SO2Unhealthy:
  30. NO2Unhealthy:
  31. PM10Unhealthy:
  32. COUnhealthy:
  33. OzoneVery Unhealthy:
  34. PM25Very Unhealthy:
  35. SO2Very Unhealthy:
  36. NO2Very Unhealthy:
  37. PM10Very Unhealthy:
  38. COVery Unhealthy:
  39. OzoneHazardous:
  40. PM25Hazardous:
  41. SO2Hazardous:
  42. NO2Hazardous:
  43. PM10Hazardous:
  44. COHazardous:
  45. OzoneGood_2:
  46. PM25Good_2:
  47. SO2Good_2:
  48. NO2Good_2:
  49. PM10Good_2:
  50. COGood_2:
  51. OzoneModerate_2:
  52. PM25Moderate_2:
  53. SO2Moderate_2:
  54. NO2Moderate_2:
  55. PM10Moderate_2:
  56. COModerate_2:
  57. OzoneUnhealthy for Sensitive Groups_2:
  58. PM25Unhealthy for Sensitive Groups_2:
  59. SO2Unhealthy for Sensitive Groups_2:
  60. NO2Unhealthy for Sensitive Groups_2:
  61. PM10Unhealthy for Sensitive Groups_2:
  62. COUnhealthy for Sensitive Groups_2:
  63. OzoneUnhealthy_2:
  64. PM25Unhealthy_2:
  65. SO2Unhealthy_2:
  66. NO2Unhealthy_2:
  67. PM10Unhealthy_2:
  68. COUnhealthy_2:
  69. OzoneVery Unhealthy_2:
  70. PM25Very Unhealthy_2:
  71. SO2Very Unhealthy_2:
  72. NO2Very Unhealthy_2:
  73. PM10Very Unhealthy_2:
  74. COVery Unhealthy_2:
  75. OzoneHazardous_2:
  76. PM25Hazardous_2:
  77. SO2Hazardous_2:
  78. NO2Hazardous_2:
  79. PM10Hazardous_2:
  80. COHazardous_2:
  81. City Selected:
  82. Reason for Selecting that City:
  83. Data Table 4 2020 Air Quality Summary for:
  84. OzoneGood_3:
  85. PM25Good_3:
  86. SO2Good_3:
  87. NO2Good_3:
  88. PM10Good_3:
  89. COGood_3:
  90. OzoneModerate_3:
  91. PM25Moderate_3:
  92. SO2Moderate_3:
  93. NO2Moderate_3:
  94. PM10Moderate_3:
  95. COModerate_3:
  96. OzoneUnhealthy for Sensitive Groups_3:
  97. PM25Unhealthy for Sensitive Groups_3:
  98. SO2Unhealthy for Sensitive Groups_3:
  99. NO2Unhealthy for Sensitive Groups_3:
  100. PM10Unhealthy for Sensitive Groups_3:
  101. COUnhealthy for Sensitive Groups_3:
  102. OzoneUnhealthy_3:
  103. PM25Unhealthy_3:
  104. SO2Unhealthy_3:
  105. NO2Unhealthy_3:
  106. PM10Unhealthy_3:
  107. COUnhealthy_3:
  108. OzoneVery Unhealthy_3:
  109. PM25Very Unhealthy_3:
  110. SO2Very Unhealthy_3:
  111. NO2Very Unhealthy_3:
  112. PM10Very Unhealthy_3:
  113. COVery Unhealthy_3:
  114. OzoneHazardous_3:
  115. PM25Hazardous_3:
  116. SO2Hazardous_3:
  117. NO2Hazardous_3:
  118. PM10Hazardous_3:
  119. COHazardous_3:
  120. Name: Wenjia Zhang
  121. Text2:
  122. Text3:
  123. Text4:
  124. Text5:
  125. Text6:
  126. Image7_af_image:
  127. Image8_af_image:
  128. Image9_af_image: