There are some terminological inexactitudes being used here.
The film that was later numbered AS16-114-18383 to AS16-114-18470 was in magazine B and
the film that was later numbered AS16-116-18563 to AS16-116-18724 was in magazine E.
In short
Film 114 magazine B
Film 116 magazine EThe frames which show the streaks are
AS16-114-18444 to 18470 (last 27 frames)
and
AS16-116-18563 to 18724 (entire film)
Frame AS16-114-18442 is light-struck and 18443 is blank, yellow-orange and dirty, but does not have the same patterns of dirt as the following frames, so may have acquired its dirt after processing.
See the Lunar and Planetary Institute's Apollo Image Atlas for Apollo 16
http://www.lpi.usra.edu/resources/apollo/catalog/70mm/mission/?16and the Apollo 16 Image Library at the Apollo Lunar Surface Journals
http://www.hq.nasa.gov/office/pao/History/alsj/frame.htmlApproximate ground elapsed times the frames were taken:
Unmarked frames
AS16-114-18437 to 18441 GET 125:24:40, EVA-1 close-out
The camera body may have been wiped after this, following EVA-1 if magazines B and E were used on the same camera.
Marked frames
AS16-114-18444 to 18470 GET 149:18:29 to 149:24:21, after the close-out of EVA-2
AS16-116-18563 to 18724 GET 165:55:34 to 170:47:16, loading the rover for EVA-3 through to close-out of EVA-3, and VIP site
Note in the ALSJ at the beginning of film 116:
Loaded on John's camera for EVA-3, but initially used by Charlie Duke. Each of the frames shows a set of smudges. Detail of the smudge pattern change only slowly from the begining of the magazine to the end. The smudges are undoubtedly the result of contact of a dust-ladened, damp cloth with the reseau plate in John's camera during an attempt the clean enough dust off the camera to make the settings readable. See page 10-60 from the Apollo 16 Technical Crew Debriefing.
It looks like the smears on Mag 116 (used on EVA-3) are darker than the smears on Mag 114 (used from station 9 onwards on EVA-2). That might suggest that the gunk on the reseau plate is sticky and actually picks up more dust etc when the mags were changed after EVA-2.
Beware of the lighting and exposure having an effect on the lightness or darkness of the smears. It's better to do a close examination of the shapes of the many smears all over the frames in the high-res scans enlarged to 100%.
Look for downsun shots with no lunar sky. For instance, there is a clump of gunk at the very top left of the frames and as the ALSJ says, the marks change slowly.
Another interesting effect is the strong flare and/or lack of focus near the centre of frames AS16-116-18672 to 18680. Charlie Duke couldn't have blown on the lens to produce that.
If any HBs find a strange "anomaly" near the top left horizon of AS16-114-18450, tell them it's just a flag on the mortar pack which appears again at the end of the pan in AS16-114-18466 and 18467. And out of focus behind John Young in AS16-117-18826. Any remaining mystery is fully solved in stereo in AS16-113-18378 and 18379 (although perhaps not to HBs' satisfaction).