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A&O SCI 2 · Lec 1

Air Pollution

Fall 2026Li, Q., Espinoza Acosta, J, Fulginiti, C., and Dellinger, R.J.4 units

Seats, time, final and grades

Seats

Closed.

280 of 280 · 1 over enrolled, lecture and all discussions summed.

Meets

Time TBA

Lecture only. You also attend a discussion, listed below.

Final

None on the page dibs read

No exam time on the page dibs read. That is not the registrar saying there is no final.

Grades

3.87
predicted, this instructor · 2,251 grades

2,251 letter grades, Li, Q., Espinoza Acosta, J, Fulginiti, C., and Dellinger, R.J..

Read 24 minutes ago. This is a recent reading, not a live seat count.

dibs has seen this section open 4 times since 17 August. The last time was 28 September.

Enroll on the registrar (opens in a new tab) Sign in to watch for an opening

Watching is the one thing here that needs an account, because an alert needs somewhere to go. Everything else on this page works signed out.

Put this class on a board

A board is one quarter you are drafting, so it needs an account to live in. Signing in brings you straight back to this page, with this class still in front of you.

Before you can enroll

Discussions

You enroll in the discussion, not the lecture, so the seat figure above is the sum across all of them and can read open while every discussion you could actually join is full.

9 discussions, none open. There is no waitlist either, so the only way in is somebody dropping the lecture.

No discussion is open. Whatever the lecture reads, there is currently nothing here to enroll in.
  • Dis 1A

    M 2:00pm-2:50pm

    Espinoza Acosta, J

    Closed.

  • Dis 1B

    M 3:00pm-3:50pm

    Espinoza Acosta, J

    Closed.

  • Dis 1C

    M 4:00pm-4:50pm

    Espinoza Acosta, J

    Closed.

  • Dis 1D

    T 9:00am-9:50am

    Fulginiti, C.

    Closed.

  • Dis 1E

    T 10:00am-10:50am

    Fulginiti, C.

    Closed.

  • Dis 1F

    T 11:00am-11:50am

    Fulginiti, C.

    Closed.

  • Dis 1G

    F 9:00am-9:50am

    Dellinger, R.J.

    Closed.

  • Dis 1H

    F 10:00am-10:50am

    Dellinger, R.J.

    Closed.

  • Dis 1I

    F 12:00pm-12:50pm

    Dellinger, R.J.

    Closed.

When it meets

Mon
Tue
Wed
Thu
Fri
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm

Meets: Meeting time not published

Online

Grades

3.87
predicted, this instructor · 2,251 grades

1 other person has taught A&O SCI 2 in the grade record: GONZALEZ, DAVID at 3.76 over 78 grades.

A range
91%
P/NP
3%
D/F/W
0.8%

Full grade history for A&O SCI 2

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

Workload, very light. 5.0 of 5 for Qinbin Li, where 5 is lightest. Read 30 days ago.

What the work looks like

  • 2 exams, said by 9 reviewers
  • 5 quizzes, said by 8 reviewers
  • 5 problem sets, said by 2 reviewers
  • Labs mentioned, no number given, said by 3 reviewers

Read from 80 reviews about 1 month ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.

A&O SCI 2 reviews for Qinbin Li, one of 4 listed Reviews for all professors of A&O SCI 2

Will it still be here

high risk chance of closing before your enrollment pass.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 8721F
  • 26222W
  • 26122F
  • 13823S
  • 14123F
  • 27124S
  • 15024F
  • 14225S
  • 14725F
Enrollment by term: 21F 87, 22W 262, 22F 261, 23S 138, 23F 141, 24S 271, 24F 150, 25S 142, 25F 147

Peak 271 · most recent 25F at 147

Seats over time

Filled by 10 over about 2 months

4 times reopened
280 of 280 · no seats left in its discussions
17 Aug 12:329 Sep 02:361 Oct 16:40
dibs read 168 of the 175 hours its hourly record covers, 96%, and did not look in 7. dibs had no hourly record before 24 Sep, which is the other 910 of 1085 plotted.280 of 280 enrolled at the newest reading, 24 minutes ago, and no seats left in its discussions. Seats from 17 Aug 12:32 to 1 Oct 16:40, 270 to 280. dibs read 168 of the 175 hours its hourly record here covers, 96%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 7 hours dibs was keeping a record and did not reach this section. Nothing before 24 September at 10:00, where this section's record starts, has a read either way, which is 910 hours of this window. Where the drawing is faint or broken, that never means the readings are doubtful. It means the stretch between them is unaccounted for.

A dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. The line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not: 24 minutes ago.

Show the readings (99)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 16:40 280 280 closed - 60 of 66
28 Sep 23:12 280 280 closed - 2 of 2
28 Sep 22:20 279 280 open - 48 of 48
26 Sep 23:00 280 280 closed - 2 of 2
26 Sep 22:10 278 280 open - 6 of 6
26 Sep 17:00 280 280 closed - 3 of 4
26 Sep 14:50 278 280 open - 1 of 1
26 Sep 14:12 280 280 closed - 3 of 3
26 Sep 12:00 278 280 open - 2 of 2
26 Sep 11:02 279 280 open - 2 of 2
26 Sep 10:50 278 280 open - 2 of 2
26 Sep 09:50 279 280 open - 2 of 2
26 Sep 08:20 278 280 open - 3 of 3
26 Sep 06:40 279 280 open - 5 of 5
26 Sep 02:00 278 280 open - 26 of 26
25 Sep 01:10 280 280 closed - 3 of 3
24 Sep 23:30 270 270 closed 10 of 10 2 of 2
24 Sep 22:20 280 280 closed - 3 of 3
24 Sep 20:10 270 270 closed 10 of 10 2 of 2
24 Sep 19:20 280 280 closed - 2 of 2
24 Sep 18:20 270 270 closed 10 of 10 2 of 2
24 Sep 17:02 280 280 closed - 8 of 17, 9 no hourly record
24 Sep 01:40 270 270 closed 10 of 10 no hourly record
24 Sep 00:50 270 270 waitlist 9 of 10 no hourly record
23 Sep 22:52 270 270 closed 10 of 10 no hourly record
23 Sep 22:40 270 270 waitlist 9 of 10 no hourly record
23 Sep 16:42 270 270 closed 10 of 10 no hourly record
23 Sep 16:00 270 270 waitlist 9 of 10 no hourly record
23 Sep 15:10 270 270 closed 10 of 10 no hourly record
23 Sep 14:22 270 270 waitlist 9 of 10 no hourly record
23 Sep 14:20 270 270 closed 10 of 10 no hourly record
23 Sep 10:10 270 270 waitlist 9 of 10 no hourly record
23 Sep 09:20 270 270 closed 10 of 10 no hourly record
23 Sep 08:30 270 270 waitlist 9 of 10 no hourly record
23 Sep 07:42 270 270 closed 10 of 10 no hourly record
23 Sep 01:20 270 270 waitlist 9 of 10 no hourly record
23 Sep 00:22 270 270 closed 10 of 10 no hourly record
23 Sep 00:20 270 270 waitlist 9 of 10 no hourly record
21 Sep 23:40 270 270 closed 10 of 10 no hourly record
21 Sep 21:42 270 270 waitlist 9 of 10 no hourly record
21 Sep 21:00 270 270 closed 10 of 10 no hourly record
21 Sep 20:50 270 270 waitlist 9 of 10 no hourly record
21 Sep 20:00 270 270 closed 10 of 10 no hourly record
21 Sep 19:10 270 270 waitlist 9 of 10 no hourly record
21 Sep 18:32 270 270 closed 10 of 10 no hourly record
21 Sep 17:40 270 270 waitlist 9 of 10 no hourly record
21 Sep 16:40 270 270 waitlist 7 of 10 no hourly record
21 Sep 15:02 270 270 waitlist 8 of 10 no hourly record
21 Sep 15:00 270 270 waitlist 9 of 10 no hourly record
21 Sep 14:50 270 270 waitlist 7 of 10 no hourly record
21 Sep 14:00 270 270 waitlist 8 of 10 no hourly record
21 Sep 13:20 270 270 waitlist 9 of 10 no hourly record
21 Sep 12:50 270 270 waitlist 7 of 10 no hourly record
21 Sep 12:10 270 270 waitlist 8 of 10 no hourly record
21 Sep 10:40 270 270 waitlist 9 of 10 no hourly record
21 Sep 09:40 270 270 waitlist 8 of 10 no hourly record
21 Sep 01:40 270 270 waitlist 9 of 10 no hourly record
21 Sep 00:50 270 270 closed 10 of 10 no hourly record
21 Sep 00:02 270 270 waitlist 9 of 10 no hourly record
18 Sep 01:10 270 270 closed 10 of 10 no hourly record
18 Sep 00:10 270 270 waitlist 9 of 10 no hourly record
15 Sep 01:20 270 270 closed 10 of 10 no hourly record
15 Sep 00:40 270 270 waitlist 9 of 10 no hourly record
15 Sep 00:02 270 270 closed 10 of 10 no hourly record
14 Sep 22:00 270 270 waitlist 9 of 10 no hourly record
14 Sep 21:10 270 270 closed 10 of 10 no hourly record
14 Sep 20:32 270 270 waitlist 9 of 10 no hourly record
14 Sep 18:20 270 270 closed 10 of 10 no hourly record
14 Sep 17:22 270 270 waitlist 9 of 10 no hourly record
14 Sep 01:10 270 270 closed 10 of 10 no hourly record
13 Sep 01:20 270 270 waitlist 9 of 10 no hourly record
9 Sep 00:30 270 270 closed 10 of 10 no hourly record
8 Sep 23:50 270 270 waitlist 9 of 10 no hourly record
8 Sep 22:40 270 270 closed 10 of 10 no hourly record
8 Sep 22:00 270 270 waitlist 9 of 10 no hourly record
8 Sep 20:50 270 270 closed 10 of 10 no hourly record
8 Sep 20:20 270 270 waitlist 9 of 10 no hourly record
8 Sep 19:40 270 270 closed 10 of 10 no hourly record
8 Sep 19:20 270 270 waitlist 9 of 10 no hourly record
8 Sep 17:40 270 270 closed 10 of 10 no hourly record
8 Sep 17:10 270 270 waitlist 9 of 10 no hourly record
8 Sep 16:40 270 270 closed 10 of 10 no hourly record
8 Sep 16:10 270 270 waitlist 9 of 10 no hourly record
8 Sep 14:40 270 270 closed 10 of 10 no hourly record
8 Sep 14:10 270 270 waitlist 9 of 10 no hourly record
26 Aug 01:40 270 270 closed 10 of 10 no hourly record
26 Aug 00:40 270 270 waitlist 9 of 10 no hourly record
25 Aug 23:40 270 270 closed 10 of 10 no hourly record
25 Aug 20:40 270 270 waitlist 9 of 10 no hourly record
25 Aug 19:55 270 270 closed 10 of 10 no hourly record
25 Aug 17:43 270 270 waitlist 9 of 10 no hourly record
25 Aug 16:55 270 270 closed 10 of 10 no hourly record
25 Aug 11:55 270 270 waitlist 9 of 10 no hourly record
21 Aug 17:55 270 270 closed 10 of 10 no hourly record
21 Aug 01:55 270 270 waitlist 9 of 10 no hourly record
18 Aug 17:23 270 270 closed 10 of 10 no hourly record
18 Aug 09:55 270 270 waitlist 9 of 10 no hourly record
18 Aug 07:55 270 270 closed 10 of 10 no hourly record
17 Aug 12:32 270 270 waitlist 9 of 10 -
How readings and alerts work

A reading and an hourly record are different things, and most charts here hold more of the second missing than present. dibs has taken readings of a section since long before it began keeping an hour-by-hour log of when it looked, so the empty stretches are dibs saying it was not keeping that log yet, not that it looked and found nothing. That is the age of the record and not a fault.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.

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