A&O SCI 2
Air Pollution
Grades
3.86
Average grade awarded in A&O SCI 2. Not a student rating: this is what the grades were.
In the A range
91%
of the 2,329 letter grades
D, F or W
0.9%
of every letter grade awarded, plus withdrawals
Taken pass/no pass
3%
92% of those passed
The registrar's own records: 2,329 grades over 12 terms, Fall 2021 to Fall 2025. Every instructor is pooled here.
What is inside that record
3 of those terms are summer sessions, and summer sessions are counted here.
The table below splits them, and term averages across those 12 terms ran 3.60 to 3.97.
- A+ 1,294 · 55.6%
- A 661 · 28.4%
- A- 173 · 7.4%
- B+ 77 · 3.3%
- B 48 · 2.1%
- B- 17 · 0.7%
- C+ 16 · 0.7%
- C 18 · 0.8%
- C- 5 · 0.2%
- D+ 2 · 0.1%
- D 6 · 0.3%
- D- 2 · 0.1%
- F 10 · 0.4%
- P 76 of 2,413
- NP 7 of 2,413
- DR 1 of 2,413
Percentages are of the 2,329 letter grades. Grey bars are non-letter outcomes: passes (P), no-passes (NP), and withdrawals (DR).
How the non-letter outcomes are counted
They are excluded from the GPA entirely rather than scored, because counting a P as a 4.0 would be a fabrication.
Withdrawals are the exception to "excluded": DR is not scored, but it IS counted in the D, F or W figure above, which is reported over the letter grades plus the withdrawals. Pass/no pass and S/U outcomes are outside that figure on both sides.
By instructor
| Instructor | Predicted GPA | Raw | n | Terms | A range | Workload | Fall 2025 |
|---|---|---|---|---|---|---|---|
| LI, QINBIN reviews ↗ | 3.87 | 3.87 | 2,251 | 9 | 91% | very light | not teaching it |
| GONZALEZ, DAVID reviews ↗ | 3.76 | 3.73 | 78 | 3 | 90% | - | not teaching it |
Why Predicted is not the Raw average
“Predicted” is shrunk toward the course average, which is itself shrunk toward the department, so an instructor with a handful of students sits near the course mean rather than topping the list.
Grade records describe outcomes. For what a course is like to take, read student reviews written on dibs below or follow the separate external review link.
In Falls
Ran in 5 of the last 5 Falls.
From the terms dibs holds, which start in Fall 2021 and exclude summer. A department can run a course in a quarter it never has before.
From the registrar's catalog
Lecture, three hours; discussion, one hour. Causes and effects of high concentrations of pollution in atmosphere. Topics include nature and sources of gaseous and particulate pollutants, their transport, dispersion, modification, and removal, with emphasis on atmospheric processes on scales ranging from individual sources to global effects; interaction with biosphere and oceans; stratospheric pollution. P/NP or letter grading.
Sections in Fall 2025
From the people who took it
Student reviews
What taking A&O SCI 2 was like: the work, the teaching, and what students wish they’d known.
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