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A&O SCI 104 · Lec 1

Fundamentals of Air and Water Pollution

Fall 2026Chamecki, M., Arnold, M.M., and Song, A.4 units

Seats, time, final and grades

Seats

Open, 33 seats left.

87 of 120 enrolled, lecture and all discussions summed.

Read 8 hours ago. The latest refresh is overdue. Seats and instructors may have changed since. Check the registrar before enrolling.

Meets

TR 8:00am-9:15am

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

Final

Tue 8 Dec, 11:30am to 2:30pm

One exam for the whole class, Los Angeles time.

Read 5 days ago.

Grades

3.48

Predicted GPA

Historical records for CHAMECKI, MARCELO; 91 letter grades
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A watch slot

25 per account. A lecture watch also covers its discussions. Paused watches still use a slot.

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Before you can enroll

Tell dibs what you have already taken and this line will say which of these you have. Your list.

Restrictions checked 5 days ago and may be outdated. Unwatched sections are rechecked less often than watched sections. Check the registrar before counting on a seat.

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.

4 discussions, 3 open: Dis 1A, T 3:00pm-3:50pm, Dis 1B, T 4:00pm-4:50pm, and Dis 1D, W 2:00pm-2:50pm.

  • Dis 1A

    T 3:00pm-3:50pm

    Arnold, M.M.

    Open, 9 seats left.

  • Dis 1B

    T 4:00pm-4:50pm

    Arnold, M.M.

    Open, 20 seats left.

  • Dis 1C

    W 1:00pm-1:50pm

    Song, A.

    Waitlist, 0 of 4 places taken.

  • Dis 1D

    W 2:00pm-2:50pm

    Song, A.

    Open, 4 seats left.

When it meets

Discussion alternatives are shown with the lecture; choose one linked discussion.

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

Lec 1

8am-9:15am

Dis 1A

3pm-3:50pm

Dis 1B

4pm-4:50pm

Dis 1C

1pm-1:50pm

Dis 1D

2pm-2:50pm

Lec 1

8am-9:15am

Scroll sideways for the whole week. All meeting times are listed below.

  • Lec 1

    TR 8:00am-9:15am

  • Dis 1A (alternative)

    T 3:00pm-3:50pm

  • Dis 1B (alternative)

    T 4:00pm-4:50pm

  • Dis 1C (alternative; recorded waitlist)

    W 1:00pm-1:50pm

  • Dis 1D (alternative)

    W 2:00pm-2:50pm

Haines Hall A2

Grades

3.48

Predicted GPA

Historical records for CHAMECKI, MARCELO; 91 letter grades

1 other person has taught A&O SCI 104 in the grade record: SAIDE PERALTA, PABLO at 3.40 over 222 grades.

A range
60%
P/NP
-
letter grade only
D/F/W
2.2%

Full grade history for A&O SCI 104

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.

What the work looks like

  • Exams mentioned, no number given, 3 mentions in past reviews
  • Quizzes mentioned, no number given, 1 mention in past reviews
  • 6 problem sets, 3 mentions in past reviews
  • Labs mentioned, no number given, 1 mention in past reviews

Based on 24 reviews; source checked 6 days ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.

A&O SCI 104 reviews for Marcelo Chamecki, one of 3 listed Reviews for all professors of A&O SCI 104

Will it still be here

low 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.

  • 7322W
  • 8023W
  • 6924S
  • 9124F
Enrollment by term: 22W 73, 23W 80, 24S 69, 24F 91

Peak 91 · most recent 24F at 91

Seats over time

Nothing read since 16 Oct, 8 hours ago. Over about 2 months before that, freed 13 seats.

87 of 120 · 33 left in its discussions
18 Aug 18:4017 Sep 05:1616 Oct 15:52 · 8 hours ago
Checked 168 of the 564 hours with hourly history, 30%. No reading was recorded in 396 hours. dibs had no hourly record before 23 Sep, which is the other 850 of 1414 plotted.87 of 120 enrolled at the newest reading, 8 hours ago, with 33 left in its discussions. Seats from 18 Aug 18:40 to 16 Oct 15:52, 100 to 87. Checks are not continuous monitoring. Changes between checks may be missed.

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, and that was 8 hours ago. It is where the line stops, not where the count is now.

Show the readings (57)
Recorded Enrolled Capacity Status Waitlist Hours read
16 Oct 15:52 87 120 open 0 of 15 7 of 20
15 Oct 20:12 87 120 open 0 of 15 22 of 67
13 Oct 02:02 86 120 open 0 of 15 19 of 55
10 Oct 20:12 87 120 open 0 of 15 2 of 5
10 Oct 16:42 86 120 open 0 of 15 2 of 4
10 Oct 13:36 87 120 open 0 of 15 19 of 65
7 Oct 21:12 86 120 open 0 of 15 10 of 29
6 Oct 17:22 87 120 open 0 of 15 2 of 5
6 Oct 13:52 86 120 open 0 of 15 44 of 157
30 Sep 01:12 87 120 open 0 of 15 2 of 5
29 Sep 21:42 86 120 open 0 of 15 2 of 4
29 Sep 18:12 87 120 open 0 of 15 2 of 5
29 Sep 14:42 90 120 open 0 of 15 2 of 3
29 Sep 12:02 87 120 open 0 of 15 2 of 5
29 Sep 08:52 90 120 open 0 of 15 3 of 7
29 Sep 02:02 91 120 open 0 of 15 2 of 4
28 Sep 23:12 92 120 open 0 of 15 2 of 4
28 Sep 20:02 91 120 open 0 of 15 2 of 5
28 Sep 16:32 90 120 open 0 of 15 2 of 4
28 Sep 13:02 91 120 open 0 of 15 4 of 11
28 Sep 03:22 89 120 open 0 of 15 11 of 35
26 Sep 17:42 88 120 open 0 of 15 2 of 4
26 Sep 14:12 87 120 open 0 of 15 5 of 15
26 Sep 00:22 88 120 open 0 of 15 2 of 5
25 Sep 20:52 90 120 open 0 of 15 4 of 10
25 Sep 11:12 88 120 open 0 of 15 3 of 8
25 Sep 04:12 90 120 open 0 of 15 3 of 9
24 Sep 20:32 87 120 open 0 of 15 3 of 8
24 Sep 13:32 88 120 open 0 of 15 6 of 18
23 Sep 20:12 87 120 open 0 of 15 2 of 5
23 Sep 16:42 88 120 open 0 of 15 5 of 14, 1 no hourly record
23 Sep 03:52 89 120 open 0 of 15 no hourly record
22 Sep 01:12 88 120 open 0 of 15 no hourly record
17 Sep 21:42 90 120 open 0 of 15 no hourly record
17 Sep 18:32 92 120 open 0 of 15 no hourly record
17 Sep 15:02 91 120 open 0 of 15 no hourly record
16 Sep 22:52 92 120 open 0 of 15 no hourly record
16 Sep 16:42 93 120 open 0 of 15 no hourly record
16 Sep 02:52 94 120 open 0 of 15 no hourly record
15 Sep 11:32 96 120 open 0 of 15 no hourly record
15 Sep 04:12 100 120 open 0 of 15 no hourly record
14 Sep 04:32 102 120 open 0 of 15 no hourly record
8 Sep 22:40 101 120 open 0 of 15 no hourly record
8 Sep 01:40 100 120 open 0 of 15 no hourly record
7 Sep 22:40 99 120 open 0 of 15 no hourly record
7 Sep 19:40 100 120 open 0 of 15 no hourly record
2 Sep 01:40 99 120 open 0 of 15 no hourly record
1 Sep 01:40 100 120 open 0 of 15 no hourly record
28 Aug 01:40 99 120 open 0 of 15 no hourly record
27 Aug 22:40 98 120 open 0 of 15 no hourly record
27 Aug 21:40 99 120 open 0 of 15 no hourly record
27 Aug 20:40 98 120 open 0 of 15 no hourly record
27 Aug 19:40 99 120 open 0 of 15 no hourly record
24 Aug 06:40 98 120 open 0 of 15 no hourly record
21 Aug 04:40 100 120 open 0 of 15 no hourly record
20 Aug 21:40 101 120 open 0 of 15 no hourly record
18 Aug 18:40 100 120 open 0 of 15 -
How readings and alerts work

Dated seat counts can be available even when hourly check history is missing. Gaps do not show whether seats changed between observations.

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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