AOS2_Assignment6_Spring_2023
pdf
School
University of California, Los Angeles *
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Course
2
Subject
Geography
Date
Jan 9, 2024
Type
Pages
2
Uploaded by CoachOxide5237
AOS 2 Assignment #6
S23
1
AOS 2: Air Pollution
Discussion Assignment #6, Week 9
Name____________________________________________
ID#_______________________
Name____________________________________________
Rating: ____
Name____________________________________________
Rating: ____
Name____________________________________________
Rating: ____
Section (time/day)__________________
Scan (or fill in electronically) this assignment and upload to the bruinlearn site as soon
as possible after the end of the discussion section (or hand in the hardcopy to a TA).
Remember to put everyone’s name on this sheet (your name and ID goes at the top). Feel free to discuss
the questions among yourselves or with the instructor.
1) The graph below shows eight days of air pollution data from Houston, TX (the other city with the
worst air pollution problem in the US). The graphs show mixing ratios of NO, NO
2
, and ozone. The large
tick mark with the date on the lower axis represents midnight on that date (12 am local time). Answer the
following questions about the mixing ratios you see below:
8/27
8/28
8/29
8/30
8/31
9/1
9/2
9/3
9/4
0
50
100
150
200
0
20
40
0
20
40
ozone (ppbv)
NO
2
(ppbv)
NO (ppbv)
1 No video, no audio
2
3
4
5 Adequate participation
6
7
8
9 Did almost all the work
AOS 2 Assignment #6
S23
2
a) (3 pts) What are the maximum (peak) mixing ratios of ozone (O
3
), nitric oxide (NO), and nitrogen
dioxide (NO
2
) during these eight days?
b) (3 pts) Approximately when do you observe the ozone maximum every day?
c) (3 pts) On which days is the old federal 1-hour ozone standard exceeded (ozone mixing ratio greater
than 120 ppb for one hour)?
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